diff options
Diffstat (limited to 'contrib/bc/lib')
| -rw-r--r-- | contrib/bc/lib/Makefile.am | 9 | ||||
| -rw-r--r-- | contrib/bc/lib/Makefile.in | 230 | ||||
| -rw-r--r-- | contrib/bc/lib/getopt.c | 752 | ||||
| -rw-r--r-- | contrib/bc/lib/getopt1.c | 184 | ||||
| -rw-r--r-- | contrib/bc/lib/number.c | 1565 | ||||
| -rw-r--r-- | contrib/bc/lib/vfprintf.c | 31 |
6 files changed, 2771 insertions, 0 deletions
diff --git a/contrib/bc/lib/Makefile.am b/contrib/bc/lib/Makefile.am new file mode 100644 index 0000000..bf33e3f --- /dev/null +++ b/contrib/bc/lib/Makefile.am @@ -0,0 +1,9 @@ +## Process this file with automake to produce Makefile.in +noinst_LIBRARIES = libbc.a + +INCLUDES = -I$(srcdir) -I$(srcdir)/../h + +libbc_a_SOURCES = getopt.c getopt1.c vfprintf.c number.c + +#libbc_LIBADD = @LIBOBJS@ +#libbc_DEPENDENCIES = $(bc_LIBADD) diff --git a/contrib/bc/lib/Makefile.in b/contrib/bc/lib/Makefile.in new file mode 100644 index 0000000..2b58b3c --- /dev/null +++ b/contrib/bc/lib/Makefile.in @@ -0,0 +1,230 @@ +# Makefile.in generated automatically by automake 1.1n from Makefile.am + +# Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy, distribute and modify it. + + +SHELL = /bin/sh + +srcdir = @srcdir@ +top_srcdir = @top_srcdir@ +VPATH = @srcdir@ +prefix = @prefix@ +exec_prefix = @exec_prefix@ + +bindir = @bindir@ +sbindir = @sbindir@ +libexecdir = @libexecdir@ +datadir = @datadir@ +sysconfdir = @sysconfdir@ +sharedstatedir = @sharedstatedir@ +localstatedir = @localstatedir@ +libdir = @libdir@ +infodir = @infodir@ +mandir = @mandir@ +includedir = @includedir@ +oldincludedir = /usr/include + +pkgdatadir = $(datadir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ + +top_builddir = .. + +ACLOCAL = @ACLOCAL@ +AUTOCONF = @AUTOCONF@ +AUTOMAKE = @AUTOMAKE@ +AUTOHEADER = @AUTOHEADER@ + +INSTALL = @INSTALL@ +INSTALL_PROGRAM = @INSTALL_PROGRAM@ +INSTALL_DATA = @INSTALL_DATA@ +INSTALL_SCRIPT = @INSTALL_SCRIPT@ +transform = @program_transform_name@ + +NORMAL_INSTALL = true +PRE_INSTALL = true +POST_INSTALL = true +NORMAL_UNINSTALL = true +PRE_UNINSTALL = true +POST_UNINSTALL = true +CC = @CC@ +LEX = @LEX@ +PACKAGE = @PACKAGE@ +RANLIB = @RANLIB@ +VERSION = @VERSION@ +YACC = @YACC@ + +noinst_LIBRARIES = libbc.a + +INCLUDES = -I$(srcdir) -I$(srcdir)/../h + +libbc_a_SOURCES = getopt.c getopt1.c vfprintf.c number.c +mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs +CONFIG_HEADER = ../config.h +CONFIG_CLEAN_FILES = +LIBRARIES = $(noinst_LIBRARIES) + + +DEFS = @DEFS@ -I. -I$(srcdir) -I.. +CPPFLAGS = @CPPFLAGS@ +LDFLAGS = @LDFLAGS@ +LIBS = @LIBS@ +libbc_a_LIBADD = +libbc_a_OBJECTS = getopt.o getopt1.o vfprintf.o number.o +AR = ar +CFLAGS = @CFLAGS@ +COMPILE = $(CC) $(DEFS) $(INCLUDES) $(CPPFLAGS) $(CFLAGS) +LINK = $(CC) $(LDFLAGS) -o $@ +DIST_COMMON = Makefile.am Makefile.in + + +DISTFILES = $(DIST_COMMON) $(SOURCES) $(HEADERS) $(TEXINFOS) $(EXTRA_DIST) + +TAR = tar +GZIP = --best +SOURCES = $(libbc_a_SOURCES) +OBJECTS = $(libbc_a_OBJECTS) + +default: all + +.SUFFIXES: +.SUFFIXES: .c .o +$(srcdir)/Makefile.in: Makefile.am $(top_srcdir)/configure.in $(ACLOCAL_M4) + cd $(top_srcdir) && $(AUTOMAKE) --gnu lib/Makefile + +Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status $(BUILT_SOURCES) + cd $(top_builddir) \ + && CONFIG_FILES=$(subdir)/$@ CONFIG_HEADERS= $(SHELL) ./config.status + + +mostlyclean-noinstLIBRARIES: + +clean-noinstLIBRARIES: + test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES) + +distclean-noinstLIBRARIES: + +maintainer-clean-noinstLIBRARIES: + +.c.o: + $(COMPILE) -c $< + +mostlyclean-compile: + rm -f *.o core + +clean-compile: + +distclean-compile: + rm -f *.tab.c + +maintainer-clean-compile: + +libbc.a: $(libbc_a_OBJECTS) $(libbc_a_DEPENDENCIES) + rm -f libbc.a + $(AR) cru libbc.a $(libbc_a_OBJECTS) $(libbc_a_LIBADD) + $(RANLIB) libbc.a + +tags: TAGS + +ID: $(HEADERS) $(SOURCES) + here=`pwd` && cd $(srcdir) && mkid -f$$here/ID $(SOURCES) $(HEADERS) + +TAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) + tags=; \ + here=`pwd`; \ + list='$(SUBDIRS)'; for subdir in $$list; do \ + test -f $$subdir/TAGS && tags="$$tags -i $$here/$$subdir/TAGS"; \ + done; \ + test -z "$(ETAGS_ARGS)$(SOURCES)$(HEADERS)$$tags" \ + || (cd $(srcdir) && etags $(ETAGS_ARGS) $$tags $(SOURCES) $(HEADERS) -o $$here/TAGS) + +mostlyclean-tags: + +clean-tags: + +distclean-tags: + rm -f TAGS ID + +maintainer-clean-tags: + +distdir = $(top_builddir)/$(PACKAGE)-$(VERSION)/$(subdir) + +subdir = lib +distdir: $(DISTFILES) + @for file in $(DISTFILES); do \ + d=$(srcdir); \ + test -f $(distdir)/$$file \ + || ln $$d/$$file $(distdir)/$$file 2> /dev/null \ + || cp -p $$d/$$file $(distdir)/$$file; \ + done +info: +dvi: +check: all + $(MAKE) +installcheck: +install-exec: + @$(NORMAL_INSTALL) + +install-data: + @$(NORMAL_INSTALL) + +install: install-exec install-data all + @: + +uninstall: + +all: $(LIBRARIES) Makefile + +install-strip: + $(MAKE) INSTALL_PROGRAM='$(INSTALL_PROGRAM) -s' install +installdirs: + + +mostlyclean-generic: + test -z "$(MOSTLYCLEANFILES)" || rm -f $(MOSTLYCLEANFILES) + +clean-generic: + test -z "$(CLEANFILES)" || rm -f $(CLEANFILES) + +distclean-generic: + rm -f Makefile $(DISTCLEANFILES) + rm -f config.cache config.log stamp-h + test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES) + +maintainer-clean-generic: + test -z "$(MAINTAINERCLEANFILES)" || rm -f $(MAINTAINERCLEANFILES) + test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES) +mostlyclean: mostlyclean-noinstLIBRARIES mostlyclean-compile \ + mostlyclean-tags mostlyclean-generic + +clean: clean-noinstLIBRARIES clean-compile clean-tags clean-generic \ + mostlyclean + +distclean: distclean-noinstLIBRARIES distclean-compile distclean-tags \ + distclean-generic clean + rm -f config.status + +maintainer-clean: maintainer-clean-noinstLIBRARIES \ + maintainer-clean-compile maintainer-clean-tags \ + maintainer-clean-generic distclean + @echo "This command is intended for maintainers to use;" + @echo "it deletes files that may require special tools to rebuild." + +.PHONY: default mostlyclean-noinstLIBRARIES distclean-noinstLIBRARIES \ +clean-noinstLIBRARIES maintainer-clean-noinstLIBRARIES \ +mostlyclean-compile distclean-compile clean-compile \ +maintainer-clean-compile tags mostlyclean-tags distclean-tags \ +clean-tags maintainer-clean-tags distdir info dvi installcheck \ +install-exec install-data install uninstall all installdirs \ +mostlyclean-generic distclean-generic clean-generic \ +maintainer-clean-generic clean mostlyclean distclean maintainer-clean + + +#libbc_LIBADD = @LIBOBJS@ +#libbc_DEPENDENCIES = $(bc_LIBADD) + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/contrib/bc/lib/getopt.c b/contrib/bc/lib/getopt.c new file mode 100644 index 0000000..23ce064 --- /dev/null +++ b/contrib/bc/lib/getopt.c @@ -0,0 +1,752 @@ +/* Getopt for GNU. + NOTE: getopt is now part of the C library, so if you don't know what + "Keep this file name-space clean" means, talk to roland@gnu.ai.mit.edu + before changing it! + + Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94 + Free Software Foundation, Inc. + +This file is part of the GNU C Library. Its master source is NOT part of +the C library, however. The master source lives in /gd/gnu/lib. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>. + Ditto for AIX 3.2 and <stdlib.h>. */ +#ifndef _NO_PROTO +#define _NO_PROTO +#endif + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#if !defined (__STDC__) || !__STDC__ +/* This is a separate conditional since some stdc systems + reject `defined (const)'. */ +#ifndef const +#define const +#endif +#endif + +#include <stdio.h> + +/* Comment out all this code if we are using the GNU C Library, and are not + actually compiling the library itself. This code is part of the GNU C + Library, but also included in many other GNU distributions. Compiling + and linking in this code is a waste when using the GNU C library + (especially if it is a shared library). Rather than having every GNU + program understand `configure --with-gnu-libc' and omit the object files, + it is simpler to just do this in the source for each such file. */ + +#if defined (_LIBC) || !defined (__GNU_LIBRARY__) + + +/* This needs to come after some library #include + to get __GNU_LIBRARY__ defined. */ +#ifdef __GNU_LIBRARY__ +/* Don't include stdlib.h for non-GNU C libraries because some of them + contain conflicting prototypes for getopt. */ +#include <stdlib.h> +#endif /* GNU C library. */ + +/* This version of `getopt' appears to the caller like standard Unix `getopt' + but it behaves differently for the user, since it allows the user + to intersperse the options with the other arguments. + + As `getopt' works, it permutes the elements of ARGV so that, + when it is done, all the options precede everything else. Thus + all application programs are extended to handle flexible argument order. + + Setting the environment variable POSIXLY_CORRECT disables permutation. + Then the behavior is completely standard. + + GNU application programs can use a third alternative mode in which + they can distinguish the relative order of options and other arguments. */ + +#include "getopt.h" + +/* For communication from `getopt' to the caller. + When `getopt' finds an option that takes an argument, + the argument value is returned here. + Also, when `ordering' is RETURN_IN_ORDER, + each non-option ARGV-element is returned here. */ + +char *optarg = NULL; + +/* Index in ARGV of the next element to be scanned. + This is used for communication to and from the caller + and for communication between successive calls to `getopt'. + + On entry to `getopt', zero means this is the first call; initialize. + + When `getopt' returns EOF, this is the index of the first of the + non-option elements that the caller should itself scan. + + Otherwise, `optind' communicates from one call to the next + how much of ARGV has been scanned so far. */ + +/* XXX 1003.2 says this must be 1 before any call. */ +int optind = 0; + +/* The next char to be scanned in the option-element + in which the last option character we returned was found. + This allows us to pick up the scan where we left off. + + If this is zero, or a null string, it means resume the scan + by advancing to the next ARGV-element. */ + +static char *nextchar; + +/* Callers store zero here to inhibit the error message + for unrecognized options. */ + +int opterr = 1; + +/* Set to an option character which was unrecognized. + This must be initialized on some systems to avoid linking in the + system's own getopt implementation. */ + +int optopt = '?'; + +/* Describe how to deal with options that follow non-option ARGV-elements. + + If the caller did not specify anything, + the default is REQUIRE_ORDER if the environment variable + POSIXLY_CORRECT is defined, PERMUTE otherwise. + + REQUIRE_ORDER means don't recognize them as options; + stop option processing when the first non-option is seen. + This is what Unix does. + This mode of operation is selected by either setting the environment + variable POSIXLY_CORRECT, or using `+' as the first character + of the list of option characters. + + PERMUTE is the default. We permute the contents of ARGV as we scan, + so that eventually all the non-options are at the end. This allows options + to be given in any order, even with programs that were not written to + expect this. + + RETURN_IN_ORDER is an option available to programs that were written + to expect options and other ARGV-elements in any order and that care about + the ordering of the two. We describe each non-option ARGV-element + as if it were the argument of an option with character code 1. + Using `-' as the first character of the list of option characters + selects this mode of operation. + + The special argument `--' forces an end of option-scanning regardless + of the value of `ordering'. In the case of RETURN_IN_ORDER, only + `--' can cause `getopt' to return EOF with `optind' != ARGC. */ + +static enum +{ + REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER +} ordering; + +/* Value of POSIXLY_CORRECT environment variable. */ +static char *posixly_correct; + +#ifdef __GNU_LIBRARY__ +/* We want to avoid inclusion of string.h with non-GNU libraries + because there are many ways it can cause trouble. + On some systems, it contains special magic macros that don't work + in GCC. */ +#include <string.h> +#define my_index strchr +#else + +/* Avoid depending on library functions or files + whose names are inconsistent. */ + +char *getenv (); + +static char * +my_index (str, chr) + const char *str; + int chr; +{ + while (*str) + { + if (*str == chr) + return (char *) str; + str++; + } + return 0; +} + +/* If using GCC, we can safely declare strlen this way. + If not using GCC, it is ok not to declare it. */ +#ifdef __GNUC__ +/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h. + That was relevant to code that was here before. */ +#if !defined (__STDC__) || !__STDC__ +/* gcc with -traditional declares the built-in strlen to return int, + and has done so at least since version 2.4.5. -- rms. */ +extern int strlen (const char *); +#endif /* not __STDC__ */ +#endif /* __GNUC__ */ + +#endif /* not __GNU_LIBRARY__ */ + +/* Handle permutation of arguments. */ + +/* Describe the part of ARGV that contains non-options that have + been skipped. `first_nonopt' is the index in ARGV of the first of them; + `last_nonopt' is the index after the last of them. */ + +static int first_nonopt; +static int last_nonopt; + +/* Exchange two adjacent subsequences of ARGV. + One subsequence is elements [first_nonopt,last_nonopt) + which contains all the non-options that have been skipped so far. + The other is elements [last_nonopt,optind), which contains all + the options processed since those non-options were skipped. + + `first_nonopt' and `last_nonopt' are relocated so that they describe + the new indices of the non-options in ARGV after they are moved. */ + +static void +exchange (argv) + char **argv; +{ + int bottom = first_nonopt; + int middle = last_nonopt; + int top = optind; + char *tem; + + /* Exchange the shorter segment with the far end of the longer segment. + That puts the shorter segment into the right place. + It leaves the longer segment in the right place overall, + but it consists of two parts that need to be swapped next. */ + + while (top > middle && middle > bottom) + { + if (top - middle > middle - bottom) + { + /* Bottom segment is the short one. */ + int len = middle - bottom; + register int i; + + /* Swap it with the top part of the top segment. */ + for (i = 0; i < len; i++) + { + tem = argv[bottom + i]; + argv[bottom + i] = argv[top - (middle - bottom) + i]; + argv[top - (middle - bottom) + i] = tem; + } + /* Exclude the moved bottom segment from further swapping. */ + top -= len; + } + else + { + /* Top segment is the short one. */ + int len = top - middle; + register int i; + + /* Swap it with the bottom part of the bottom segment. */ + for (i = 0; i < len; i++) + { + tem = argv[bottom + i]; + argv[bottom + i] = argv[middle + i]; + argv[middle + i] = tem; + } + /* Exclude the moved top segment from further swapping. */ + bottom += len; + } + } + + /* Update records for the slots the non-options now occupy. */ + + first_nonopt += (optind - last_nonopt); + last_nonopt = optind; +} + +/* Initialize the internal data when the first call is made. */ + +static const char * +_getopt_initialize (optstring) + const char *optstring; +{ + /* Start processing options with ARGV-element 1 (since ARGV-element 0 + is the program name); the sequence of previously skipped + non-option ARGV-elements is empty. */ + + first_nonopt = last_nonopt = optind = 1; + + nextchar = NULL; + + posixly_correct = getenv ("POSIXLY_CORRECT"); + + /* Determine how to handle the ordering of options and nonoptions. */ + + if (optstring[0] == '-') + { + ordering = RETURN_IN_ORDER; + ++optstring; + } + else if (optstring[0] == '+') + { + ordering = REQUIRE_ORDER; + ++optstring; + } + else if (posixly_correct != NULL) + ordering = REQUIRE_ORDER; + else + ordering = PERMUTE; + + return optstring; +} + +/* Scan elements of ARGV (whose length is ARGC) for option characters + given in OPTSTRING. + + If an element of ARGV starts with '-', and is not exactly "-" or "--", + then it is an option element. The characters of this element + (aside from the initial '-') are option characters. If `getopt' + is called repeatedly, it returns successively each of the option characters + from each of the option elements. + + If `getopt' finds another option character, it returns that character, + updating `optind' and `nextchar' so that the next call to `getopt' can + resume the scan with the following option character or ARGV-element. + + If there are no more option characters, `getopt' returns `EOF'. + Then `optind' is the index in ARGV of the first ARGV-element + that is not an option. (The ARGV-elements have been permuted + so that those that are not options now come last.) + + OPTSTRING is a string containing the legitimate option characters. + If an option character is seen that is not listed in OPTSTRING, + return '?' after printing an error message. If you set `opterr' to + zero, the error message is suppressed but we still return '?'. + + If a char in OPTSTRING is followed by a colon, that means it wants an arg, + so the following text in the same ARGV-element, or the text of the following + ARGV-element, is returned in `optarg'. Two colons mean an option that + wants an optional arg; if there is text in the current ARGV-element, + it is returned in `optarg', otherwise `optarg' is set to zero. + + If OPTSTRING starts with `-' or `+', it requests different methods of + handling the non-option ARGV-elements. + See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above. + + Long-named options begin with `--' instead of `-'. + Their names may be abbreviated as long as the abbreviation is unique + or is an exact match for some defined option. If they have an + argument, it follows the option name in the same ARGV-element, separated + from the option name by a `=', or else the in next ARGV-element. + When `getopt' finds a long-named option, it returns 0 if that option's + `flag' field is nonzero, the value of the option's `val' field + if the `flag' field is zero. + + The elements of ARGV aren't really const, because we permute them. + But we pretend they're const in the prototype to be compatible + with other systems. + + LONGOPTS is a vector of `struct option' terminated by an + element containing a name which is zero. + + LONGIND returns the index in LONGOPT of the long-named option found. + It is only valid when a long-named option has been found by the most + recent call. + + If LONG_ONLY is nonzero, '-' as well as '--' can introduce + long-named options. */ + +int +_getopt_internal (argc, argv, optstring, longopts, longind, long_only) + int argc; + char *const *argv; + const char *optstring; + const struct option *longopts; + int *longind; + int long_only; +{ + optarg = NULL; + + if (optind == 0) + optstring = _getopt_initialize (optstring); + + if (nextchar == NULL || *nextchar == '\0') + { + /* Advance to the next ARGV-element. */ + + if (ordering == PERMUTE) + { + /* If we have just processed some options following some non-options, + exchange them so that the options come first. */ + + if (first_nonopt != last_nonopt && last_nonopt != optind) + exchange ((char **) argv); + else if (last_nonopt != optind) + first_nonopt = optind; + + /* Skip any additional non-options + and extend the range of non-options previously skipped. */ + + while (optind < argc + && (argv[optind][0] != '-' || argv[optind][1] == '\0')) + optind++; + last_nonopt = optind; + } + + /* The special ARGV-element `--' means premature end of options. + Skip it like a null option, + then exchange with previous non-options as if it were an option, + then skip everything else like a non-option. */ + + if (optind != argc && !strcmp (argv[optind], "--")) + { + optind++; + + if (first_nonopt != last_nonopt && last_nonopt != optind) + exchange ((char **) argv); + else if (first_nonopt == last_nonopt) + first_nonopt = optind; + last_nonopt = argc; + + optind = argc; + } + + /* If we have done all the ARGV-elements, stop the scan + and back over any non-options that we skipped and permuted. */ + + if (optind == argc) + { + /* Set the next-arg-index to point at the non-options + that we previously skipped, so the caller will digest them. */ + if (first_nonopt != last_nonopt) + optind = first_nonopt; + return EOF; + } + + /* If we have come to a non-option and did not permute it, + either stop the scan or describe it to the caller and pass it by. */ + + if ((argv[optind][0] != '-' || argv[optind][1] == '\0')) + { + if (ordering == REQUIRE_ORDER) + return EOF; + optarg = argv[optind++]; + return 1; + } + + /* We have found another option-ARGV-element. + Skip the initial punctuation. */ + + nextchar = (argv[optind] + 1 + + (longopts != NULL && argv[optind][1] == '-')); + } + + /* Decode the current option-ARGV-element. */ + + /* Check whether the ARGV-element is a long option. + + If long_only and the ARGV-element has the form "-f", where f is + a valid short option, don't consider it an abbreviated form of + a long option that starts with f. Otherwise there would be no + way to give the -f short option. + + On the other hand, if there's a long option "fubar" and + the ARGV-element is "-fu", do consider that an abbreviation of + the long option, just like "--fu", and not "-f" with arg "u". + + This distinction seems to be the most useful approach. */ + + if (longopts != NULL + && (argv[optind][1] == '-' + || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1]))))) + { + char *nameend; + const struct option *p; + const struct option *pfound = NULL; + int exact = 0; + int ambig = 0; + int indfound; + int option_index; + + for (nameend = nextchar; *nameend && *nameend != '='; nameend++) + /* Do nothing. */ ; + + /* Test all long options for either exact match + or abbreviated matches. */ + for (p = longopts, option_index = 0; p->name; p++, option_index++) + if (!strncmp (p->name, nextchar, nameend - nextchar)) + { + if (nameend - nextchar == strlen (p->name)) + { + /* Exact match found. */ + pfound = p; + indfound = option_index; + exact = 1; + break; + } + else if (pfound == NULL) + { + /* First nonexact match found. */ + pfound = p; + indfound = option_index; + } + else + /* Second or later nonexact match found. */ + ambig = 1; + } + + if (ambig && !exact) + { + if (opterr) + fprintf (stderr, "%s: option `%s' is ambiguous\n", + argv[0], argv[optind]); + nextchar += strlen (nextchar); + optind++; + return '?'; + } + + if (pfound != NULL) + { + option_index = indfound; + optind++; + if (*nameend) + { + /* Don't test has_arg with >, because some C compilers don't + allow it to be used on enums. */ + if (pfound->has_arg) + optarg = nameend + 1; + else + { + if (opterr) + { + if (argv[optind - 1][1] == '-') + /* --option */ + fprintf (stderr, + "%s: option `--%s' doesn't allow an argument\n", + argv[0], pfound->name); + else + /* +option or -option */ + fprintf (stderr, + "%s: option `%c%s' doesn't allow an argument\n", + argv[0], argv[optind - 1][0], pfound->name); + } + nextchar += strlen (nextchar); + return '?'; + } + } + else if (pfound->has_arg == 1) + { + if (optind < argc) + optarg = argv[optind++]; + else + { + if (opterr) + fprintf (stderr, "%s: option `%s' requires an argument\n", + argv[0], argv[optind - 1]); + nextchar += strlen (nextchar); + return optstring[0] == ':' ? ':' : '?'; + } + } + nextchar += strlen (nextchar); + if (longind != NULL) + *longind = option_index; + if (pfound->flag) + { + *(pfound->flag) = pfound->val; + return 0; + } + return pfound->val; + } + + /* Can't find it as a long option. If this is not getopt_long_only, + or the option starts with '--' or is not a valid short + option, then it's an error. + Otherwise interpret it as a short option. */ + if (!long_only || argv[optind][1] == '-' + || my_index (optstring, *nextchar) == NULL) + { + if (opterr) + { + if (argv[optind][1] == '-') + /* --option */ + fprintf (stderr, "%s: unrecognized option `--%s'\n", + argv[0], nextchar); + else + /* +option or -option */ + fprintf (stderr, "%s: unrecognized option `%c%s'\n", + argv[0], argv[optind][0], nextchar); + } + nextchar = (char *) ""; + optind++; + return '?'; + } + } + + /* Look at and handle the next short option-character. */ + + { + char c = *nextchar++; + char *temp = my_index (optstring, c); + + /* Increment `optind' when we start to process its last character. */ + if (*nextchar == '\0') + ++optind; + + if (temp == NULL || c == ':') + { + if (opterr) + { + if (posixly_correct) + /* 1003.2 specifies the format of this message. */ + fprintf (stderr, "%s: illegal option -- %c\n", argv[0], c); + else + fprintf (stderr, "%s: invalid option -- %c\n", argv[0], c); + } + optopt = c; + return '?'; + } + if (temp[1] == ':') + { + if (temp[2] == ':') + { + /* This is an option that accepts an argument optionally. */ + if (*nextchar != '\0') + { + optarg = nextchar; + optind++; + } + else + optarg = NULL; + nextchar = NULL; + } + else + { + /* This is an option that requires an argument. */ + if (*nextchar != '\0') + { + optarg = nextchar; + /* If we end this ARGV-element by taking the rest as an arg, + we must advance to the next element now. */ + optind++; + } + else if (optind == argc) + { + if (opterr) + { + /* 1003.2 specifies the format of this message. */ + fprintf (stderr, "%s: option requires an argument -- %c\n", + argv[0], c); + } + optopt = c; + if (optstring[0] == ':') + c = ':'; + else + c = '?'; + } + else + /* We already incremented `optind' once; + increment it again when taking next ARGV-elt as argument. */ + optarg = argv[optind++]; + nextchar = NULL; + } + } + return c; + } +} + +int +getopt (argc, argv, optstring) + int argc; + char *const *argv; + const char *optstring; +{ + return _getopt_internal (argc, argv, optstring, + (const struct option *) 0, + (int *) 0, + 0); +} + +#endif /* _LIBC or not __GNU_LIBRARY__. */ + +#ifdef TEST + +/* Compile with -DTEST to make an executable for use in testing + the above definition of `getopt'. */ + +int +main (argc, argv) + int argc; + char **argv; +{ + int c; + int digit_optind = 0; + + while (1) + { + int this_option_optind = optind ? optind : 1; + + c = getopt (argc, argv, "abc:d:0123456789"); + if (c == EOF) + break; + + switch (c) + { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + if (digit_optind != 0 && digit_optind != this_option_optind) + printf ("digits occur in two different argv-elements.\n"); + digit_optind = this_option_optind; + printf ("option %c\n", c); + break; + + case 'a': + printf ("option a\n"); + break; + + case 'b': + printf ("option b\n"); + break; + + case 'c': + printf ("option c with value `%s'\n", optarg); + break; + + case '?': + break; + + default: + printf ("?? getopt returned character code 0%o ??\n", c); + } + } + + if (optind < argc) + { + printf ("non-option ARGV-elements: "); + while (optind < argc) + printf ("%s ", argv[optind++]); + printf ("\n"); + } + + exit (0); +} + +#endif /* TEST */ diff --git a/contrib/bc/lib/getopt1.c b/contrib/bc/lib/getopt1.c new file mode 100644 index 0000000..de8e2ad --- /dev/null +++ b/contrib/bc/lib/getopt1.c @@ -0,0 +1,184 @@ +/* getopt_long and getopt_long_only entry points for GNU getopt. + Copyright (C) 1987, 88, 89, 90, 91, 92, 1993, 1994 + Free Software Foundation, Inc. + +This file is part of the GNU C Library. Its master source is NOT part of +the C library, however. The master source lives in /gd/gnu/lib. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include "getopt.h" + +#if !defined (__STDC__) || !__STDC__ +/* This is a separate conditional since some stdc systems + reject `defined (const)'. */ +#ifndef const +#define const +#endif +#endif + +#include <stdio.h> + +/* Comment out all this code if we are using the GNU C Library, and are not + actually compiling the library itself. This code is part of the GNU C + Library, but also included in many other GNU distributions. Compiling + and linking in this code is a waste when using the GNU C library + (especially if it is a shared library). Rather than having every GNU + program understand `configure --with-gnu-libc' and omit the object files, + it is simpler to just do this in the source for each such file. */ + +#if defined (_LIBC) || !defined (__GNU_LIBRARY__) + + +/* This needs to come after some library #include + to get __GNU_LIBRARY__ defined. */ +#ifdef __GNU_LIBRARY__ +#include <stdlib.h> +#else +char *getenv (); +#endif + +#ifndef NULL +#define NULL 0 +#endif + +int +getopt_long (argc, argv, options, long_options, opt_index) + int argc; + char *const *argv; + const char *options; + const struct option *long_options; + int *opt_index; +{ + return _getopt_internal (argc, argv, options, long_options, opt_index, 0); +} + +/* Like getopt_long, but '-' as well as '--' can indicate a long option. + If an option that starts with '-' (not '--') doesn't match a long option, + but does match a short option, it is parsed as a short option + instead. */ + +int +getopt_long_only (argc, argv, options, long_options, opt_index) + int argc; + char *const *argv; + const char *options; + const struct option *long_options; + int *opt_index; +{ + return _getopt_internal (argc, argv, options, long_options, opt_index, 1); +} + + +#endif /* _LIBC or not __GNU_LIBRARY__. */ + +#ifdef TEST + +#include <stdio.h> + +int +main (argc, argv) + int argc; + char **argv; +{ + int c; + int digit_optind = 0; + + while (1) + { + int this_option_optind = optind ? optind : 1; + int option_index = 0; + static struct option long_options[] = + { + {"add", 1, 0, 0}, + {"append", 0, 0, 0}, + {"delete", 1, 0, 0}, + {"verbose", 0, 0, 0}, + {"create", 0, 0, 0}, + {"file", 1, 0, 0}, + {0, 0, 0, 0} + }; + + c = getopt_long (argc, argv, "abc:d:0123456789", + long_options, &option_index); + if (c == EOF) + break; + + switch (c) + { + case 0: + printf ("option %s", long_options[option_index].name); + if (optarg) + printf (" with arg %s", optarg); + printf ("\n"); + break; + + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + if (digit_optind != 0 && digit_optind != this_option_optind) + printf ("digits occur in two different argv-elements.\n"); + digit_optind = this_option_optind; + printf ("option %c\n", c); + break; + + case 'a': + printf ("option a\n"); + break; + + case 'b': + printf ("option b\n"); + break; + + case 'c': + printf ("option c with value `%s'\n", optarg); + break; + + case 'd': + printf ("option d with value `%s'\n", optarg); + break; + + case '?': + break; + + default: + printf ("?? getopt returned character code 0%o ??\n", c); + } + } + + if (optind < argc) + { + printf ("non-option ARGV-elements: "); + while (optind < argc) + printf ("%s ", argv[optind++]); + printf ("\n"); + } + + exit (0); +} + +#endif /* TEST */ diff --git a/contrib/bc/lib/number.c b/contrib/bc/lib/number.c new file mode 100644 index 0000000..e1ada04 --- /dev/null +++ b/contrib/bc/lib/number.c @@ -0,0 +1,1565 @@ +/* number.c: Implements arbitrary precision numbers. */ + +/* This file is part of GNU bc. + Copyright (C) 1991, 1992, 1993, 1994, 1997 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License , or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + + You may contact the author by: + e-mail: phil@cs.wwu.edu + us-mail: Philip A. Nelson + Computer Science Department, 9062 + Western Washington University + Bellingham, WA 98226-9062 + +*************************************************************************/ + +#include "bcdefs.h" +#include "proto.h" +#include "global.h" + +/* Storage used for special numbers. */ +bc_num _zero_; +bc_num _one_; +bc_num _two_; + + +/* "Frees" a bc_num NUM. Actually decreases reference count and only + frees the storage if reference count is zero. */ + +void +free_num (num) + bc_num *num; +{ + if (*num == NULL) return; + (*num)->n_refs--; + if ((*num)->n_refs == 0) free(*num); + *num = NULL; +} + + +/* new_num allocates a number and sets fields to known values. */ + +bc_num +new_num (length, scale) + int length, scale; +{ + bc_num temp; + + temp = (bc_num) malloc (sizeof(bc_struct)+length+scale); + if (temp == NULL) out_of_memory (); + temp->n_sign = PLUS; + temp->n_len = length; + temp->n_scale = scale; + temp->n_refs = 1; + temp->n_value[0] = 0; + return temp; +} + + +/* Intitialize the number package! */ + +void +init_numbers () +{ + _zero_ = new_num (1,0); + _one_ = new_num (1,0); + _one_->n_value[0] = 1; + _two_ = new_num (1,0); + _two_->n_value[0] = 2; +} + + +/* Make a copy of a number! Just increments the reference count! */ + +bc_num +copy_num (num) + bc_num num; +{ + num->n_refs++; + return num; +} + + +/* Initialize a number NUM by making it a copy of zero. */ + +void +init_num (num) + bc_num *num; +{ + *num = copy_num (_zero_); +} + + +/* Convert an integer VAL to a bc number NUM. */ + +void +int2num (num, val) + bc_num *num; + int val; +{ + char buffer[30]; + char *bptr, *vptr; + int ix = 1; + char neg = 0; + + /* Sign. */ + if (val < 0) + { + neg = 1; + val = -val; + } + + /* Get things going. */ + bptr = buffer; + *bptr++ = val % BASE; + val = val / BASE; + + /* Extract remaining digits. */ + while (val != 0) + { + *bptr++ = val % BASE; + val = val / BASE; + ix++; /* Count the digits. */ + } + + /* Make the number. */ + free_num (num); + *num = new_num (ix, 0); + if (neg) (*num)->n_sign = MINUS; + + /* Assign the digits. */ + vptr = (*num)->n_value; + while (ix-- > 0) + *vptr++ = *--bptr; +} + + +/* Convert a number NUM to a long. The function returns only the integer + part of the number. For numbers that are too large to represent as + a long, this function returns a zero. This can be detected by checking + the NUM for zero after having a zero returned. */ + +long +num2long (num) + bc_num num; +{ + long val; + char *nptr; + int index; + + /* Extract the int value, ignore the fraction. */ + val = 0; + nptr = num->n_value; + for (index=num->n_len; (index>0) && (val<=(LONG_MAX/BASE)); index--) + val = val*BASE + *nptr++; + + /* Check for overflow. If overflow, return zero. */ + if (index>0) val = 0; + if (val < 0) val = 0; + + /* Return the value. */ + if (num->n_sign == PLUS) + return (val); + else + return (-val); +} + + +/* The following are some math routines for numbers. */ +_PROTOTYPE(static int _do_compare, (bc_num n1, bc_num n2, int use_sign, + int ignore_last)); +_PROTOTYPE(static void _rm_leading_zeros, (bc_num num)); +_PROTOTYPE(static bc_num _do_add, (bc_num n1, bc_num n2, int scale_min)); +_PROTOTYPE(static bc_num _do_sub, (bc_num n1, bc_num n2, int scale_min)); +_PROTOTYPE(static void _one_mult, (unsigned char *num, int size, int digit, + unsigned char *result)); + + + +/* Compare two bc numbers. Return value is 0 if equal, -1 if N1 is less + than N2 and +1 if N1 is greater than N2. If USE_SIGN is false, just + compare the magnitudes. */ + +static int +_do_compare (n1, n2, use_sign, ignore_last) + bc_num n1, n2; + int use_sign; + int ignore_last; +{ + char *n1ptr, *n2ptr; + int count; + + /* First, compare signs. */ + if (use_sign && n1->n_sign != n2->n_sign) + { + if (n1->n_sign == PLUS) + return (1); /* Positive N1 > Negative N2 */ + else + return (-1); /* Negative N1 < Positive N1 */ + } + + /* Now compare the magnitude. */ + if (n1->n_len != n2->n_len) + { + if (n1->n_len > n2->n_len) + { + /* Magnitude of n1 > n2. */ + if (!use_sign || n1->n_sign == PLUS) + return (1); + else + return (-1); + } + else + { + /* Magnitude of n1 < n2. */ + if (!use_sign || n1->n_sign == PLUS) + return (-1); + else + return (1); + } + } + + /* If we get here, they have the same number of integer digits. + check the integer part and the equal length part of the fraction. */ + count = n1->n_len + MIN (n1->n_scale, n2->n_scale); + n1ptr = n1->n_value; + n2ptr = n2->n_value; + + while ((count > 0) && (*n1ptr == *n2ptr)) + { + n1ptr++; + n2ptr++; + count--; + } + if (ignore_last && count == 1 && n1->n_scale == n2->n_scale) + return (0); + if (count != 0) + { + if (*n1ptr > *n2ptr) + { + /* Magnitude of n1 > n2. */ + if (!use_sign || n1->n_sign == PLUS) + return (1); + else + return (-1); + } + else + { + /* Magnitude of n1 < n2. */ + if (!use_sign || n1->n_sign == PLUS) + return (-1); + else + return (1); + } + } + + /* They are equal up to the last part of the equal part of the fraction. */ + if (n1->n_scale != n2->n_scale) + if (n1->n_scale > n2->n_scale) + { + for (count = n1->n_scale-n2->n_scale; count>0; count--) + if (*n1ptr++ != 0) + { + /* Magnitude of n1 > n2. */ + if (!use_sign || n1->n_sign == PLUS) + return (1); + else + return (-1); + } + } + else + { + for (count = n2->n_scale-n1->n_scale; count>0; count--) + if (*n2ptr++ != 0) + { + /* Magnitude of n1 < n2. */ + if (!use_sign || n1->n_sign == PLUS) + return (-1); + else + return (1); + } + } + + /* They must be equal! */ + return (0); +} + + +/* This is the "user callable" routine to compare numbers N1 and N2. */ + +int +bc_compare (n1, n2) + bc_num n1, n2; +{ + return _do_compare (n1, n2, TRUE, FALSE); +} + + +/* In some places we need to check if the number NUM is zero. */ + +char +is_zero (num) + bc_num num; +{ + int count; + char *nptr; + + /* Quick check. */ + if (num == _zero_) return TRUE; + + /* Initialize */ + count = num->n_len + num->n_scale; + nptr = num->n_value; + + /* The check */ + while ((count > 0) && (*nptr++ == 0)) count--; + + if (count != 0) + return FALSE; + else + return TRUE; +} + + +/* In some places we need to check if the number is negative. */ + +char +is_neg (num) + bc_num num; +{ + return num->n_sign == MINUS; +} + + +/* For many things, we may have leading zeros in a number NUM. + _rm_leading_zeros just moves the data to the correct + place and adjusts the length. */ + +static void +_rm_leading_zeros (num) + bc_num num; +{ + int bytes; + char *dst, *src; + + /* Do a quick check to see if we need to do it. */ + if (*num->n_value != 0) return; + + /* The first "digit" is 0, find the first non-zero digit in the second + or greater "digit" to the left of the decimal place. */ + bytes = num->n_len; + src = num->n_value; + while (bytes > 1 && *src == 0) src++, bytes--; + num->n_len = bytes; + bytes += num->n_scale; + dst = num->n_value; + while (bytes-- > 0) *dst++ = *src++; + +} + + +/* Perform addition: N1 is added to N2 and the value is + returned. The signs of N1 and N2 are ignored. + SCALE_MIN is to set the minimum scale of the result. */ + +static bc_num +_do_add (n1, n2, scale_min) + bc_num n1, n2; + int scale_min; +{ + bc_num sum; + int sum_scale, sum_digits; + char *n1ptr, *n2ptr, *sumptr; + int carry, n1bytes, n2bytes; + int count; + + /* Prepare sum. */ + sum_scale = MAX (n1->n_scale, n2->n_scale); + sum_digits = MAX (n1->n_len, n2->n_len) + 1; + sum = new_num (sum_digits, MAX(sum_scale, scale_min)); + + /* Zero extra digits made by scale_min. */ + if (scale_min > sum_scale) + { + sumptr = (char *) (sum->n_value + sum_scale + sum_digits); + for (count = scale_min - sum_scale; count > 0; count--) + *sumptr++ = 0; + } + + /* Start with the fraction part. Initialize the pointers. */ + n1bytes = n1->n_scale; + n2bytes = n2->n_scale; + n1ptr = (char *) (n1->n_value + n1->n_len + n1bytes - 1); + n2ptr = (char *) (n2->n_value + n2->n_len + n2bytes - 1); + sumptr = (char *) (sum->n_value + sum_scale + sum_digits - 1); + + /* Add the fraction part. First copy the longer fraction.*/ + if (n1bytes != n2bytes) + { + if (n1bytes > n2bytes) + while (n1bytes>n2bytes) + { *sumptr-- = *n1ptr--; n1bytes--;} + else + while (n2bytes>n1bytes) + { *sumptr-- = *n2ptr--; n2bytes--;} + } + + /* Now add the remaining fraction part and equal size integer parts. */ + n1bytes += n1->n_len; + n2bytes += n2->n_len; + carry = 0; + while ((n1bytes > 0) && (n2bytes > 0)) + { + *sumptr = *n1ptr-- + *n2ptr-- + carry; + if (*sumptr > (BASE-1)) + { + carry = 1; + *sumptr -= BASE; + } + else + carry = 0; + sumptr--; + n1bytes--; + n2bytes--; + } + + /* Now add carry the longer integer part. */ + if (n1bytes == 0) + { n1bytes = n2bytes; n1ptr = n2ptr; } + while (n1bytes-- > 0) + { + *sumptr = *n1ptr-- + carry; + if (*sumptr > (BASE-1)) + { + carry = 1; + *sumptr -= BASE; + } + else + carry = 0; + sumptr--; + } + + /* Set final carry. */ + if (carry == 1) + *sumptr += 1; + + /* Adjust sum and return. */ + _rm_leading_zeros (sum); + return sum; +} + + +/* Perform subtraction: N2 is subtracted from N1 and the value is + returned. The signs of N1 and N2 are ignored. Also, N1 is + assumed to be larger than N2. SCALE_MIN is the minimum scale + of the result. */ + +static bc_num +_do_sub (n1, n2, scale_min) + bc_num n1, n2; + int scale_min; +{ + bc_num diff; + int diff_scale, diff_len; + int min_scale, min_len; + char *n1ptr, *n2ptr, *diffptr; + int borrow, count, val; + + /* Allocate temporary storage. */ + diff_len = MAX (n1->n_len, n2->n_len); + diff_scale = MAX (n1->n_scale, n2->n_scale); + min_len = MIN (n1->n_len, n2->n_len); + min_scale = MIN (n1->n_scale, n2->n_scale); + diff = new_num (diff_len, MAX(diff_scale, scale_min)); + + /* Zero extra digits made by scale_min. */ + if (scale_min > diff_scale) + { + diffptr = (char *) (diff->n_value + diff_len + diff_scale); + for (count = scale_min - diff_scale; count > 0; count--) + *diffptr++ = 0; + } + + /* Initialize the subtract. */ + n1ptr = (char *) (n1->n_value + n1->n_len + n1->n_scale -1); + n2ptr = (char *) (n2->n_value + n2->n_len + n2->n_scale -1); + diffptr = (char *) (diff->n_value + diff_len + diff_scale -1); + + /* Subtract the numbers. */ + borrow = 0; + + /* Take care of the longer scaled number. */ + if (n1->n_scale != min_scale) + { + /* n1 has the longer scale */ + for (count = n1->n_scale - min_scale; count > 0; count--) + *diffptr-- = *n1ptr--; + } + else + { + /* n2 has the longer scale */ + for (count = n2->n_scale - min_scale; count > 0; count--) + { + val = - *n2ptr-- - borrow; + if (val < 0) + { + val += BASE; + borrow = 1; + } + else + borrow = 0; + *diffptr-- = val; + } + } + + /* Now do the equal length scale and integer parts. */ + + for (count = 0; count < min_len + min_scale; count++) + { + val = *n1ptr-- - *n2ptr-- - borrow; + if (val < 0) + { + val += BASE; + borrow = 1; + } + else + borrow = 0; + *diffptr-- = val; + } + + /* If n1 has more digits then n2, we now do that subtract. */ + if (diff_len != min_len) + { + for (count = diff_len - min_len; count > 0; count--) + { + val = *n1ptr-- - borrow; + if (val < 0) + { + val += BASE; + borrow = 1; + } + else + borrow = 0; + *diffptr-- = val; + } + } + + /* Clean up and return. */ + _rm_leading_zeros (diff); + return diff; +} + + +/* Here is the full add routine that takes care of negative numbers. + N1 is added to N2 and the result placed into RESULT. SCALE_MIN + is the minimum scale for the result. */ + +void +bc_add (n1, n2, result, scale_min) + bc_num n1, n2, *result; + int scale_min; +{ + bc_num sum; + int cmp_res; + int res_scale; + + if (n1->n_sign == n2->n_sign) + { + sum = _do_add (n1, n2, scale_min); + sum->n_sign = n1->n_sign; + } + else + { + /* subtraction must be done. */ + cmp_res = _do_compare (n1, n2, FALSE, FALSE); /* Compare magnitudes. */ + switch (cmp_res) + { + case -1: + /* n1 is less than n2, subtract n1 from n2. */ + sum = _do_sub (n2, n1, scale_min); + sum->n_sign = n2->n_sign; + break; + case 0: + /* They are equal! return zero with the correct scale! */ + res_scale = MAX (scale_min, MAX(n1->n_scale, n2->n_scale)); + sum = new_num (1, res_scale); + memset (sum->n_value, 0, res_scale+1); + break; + case 1: + /* n2 is less than n1, subtract n2 from n1. */ + sum = _do_sub (n1, n2, scale_min); + sum->n_sign = n1->n_sign; + } + } + + /* Clean up and return. */ + free_num (result); + *result = sum; +} + + +/* Here is the full subtract routine that takes care of negative numbers. + N2 is subtracted from N1 and the result placed in RESULT. SCALE_MIN + is the minimum scale for the result. */ + +void +bc_sub (n1, n2, result, scale_min) + bc_num n1, n2, *result; + int scale_min; +{ + bc_num diff; + int cmp_res; + int res_scale; + + if (n1->n_sign != n2->n_sign) + { + diff = _do_add (n1, n2, scale_min); + diff->n_sign = n1->n_sign; + } + else + { + /* subtraction must be done. */ + cmp_res = _do_compare (n1, n2, FALSE, FALSE); /* Compare magnitudes. */ + switch (cmp_res) + { + case -1: + /* n1 is less than n2, subtract n1 from n2. */ + diff = _do_sub (n2, n1, scale_min); + diff->n_sign = (n2->n_sign == PLUS ? MINUS : PLUS); + break; + case 0: + /* They are equal! return zero! */ + res_scale = MAX (scale_min, MAX(n1->n_scale, n2->n_scale)); + diff = new_num (1, res_scale); + memset (diff->n_value, 0, res_scale+1); + break; + case 1: + /* n2 is less than n1, subtract n2 from n1. */ + diff = _do_sub (n1, n2, scale_min); + diff->n_sign = n1->n_sign; + break; + } + } + + /* Clean up and return. */ + free_num (result); + *result = diff; +} + + +/* The multiply routine. N2 time N1 is put int PROD with the scale of + the result being MIN(N2 scale+N1 scale, MAX (SCALE, N2 scale, N1 scale)). + */ + +void +bc_multiply (n1, n2, prod, scale) + bc_num n1, n2, *prod; + int scale; +{ + bc_num pval; /* For the working storage. */ + char *n1ptr, *n2ptr, *pvptr; /* Work pointers. */ + char *n1end, *n2end; /* To the end of n1 and n2. */ + + int indx; + int len1, len2, total_digits; + long sum; + int full_scale, prod_scale; + int toss; + + /* Initialize things. */ + len1 = n1->n_len + n1->n_scale; + len2 = n2->n_len + n2->n_scale; + total_digits = len1 + len2; + full_scale = n1->n_scale + n2->n_scale; + prod_scale = MIN(full_scale,MAX(scale,MAX(n1->n_scale,n2->n_scale))); + toss = full_scale - prod_scale; + pval = new_num (total_digits-full_scale, prod_scale); + pval->n_sign = ( n1->n_sign == n2->n_sign ? PLUS : MINUS ); + n1end = (char *) (n1->n_value + len1 - 1); + n2end = (char *) (n2->n_value + len2 - 1); + pvptr = (char *) (pval->n_value + total_digits - toss - 1); + sum = 0; + + /* Here are the loops... */ + for (indx = 0; indx < toss; indx++) + { + n1ptr = (char *) (n1end - MAX(0, indx-len2+1)); + n2ptr = (char *) (n2end - MIN(indx, len2-1)); + while ((n1ptr >= n1->n_value) && (n2ptr <= n2end)) + sum += *n1ptr-- * *n2ptr++; + sum = sum / BASE; + } + for ( ; indx < total_digits-1; indx++) + { + n1ptr = (char *) (n1end - MAX(0, indx-len2+1)); + n2ptr = (char *) (n2end - MIN(indx, len2-1)); + while ((n1ptr >= n1->n_value) && (n2ptr <= n2end)) + sum += *n1ptr-- * *n2ptr++; + *pvptr-- = sum % BASE; + sum = sum / BASE; + } + *pvptr-- = sum; + + /* Assign to prod and clean up the number. */ + free_num (prod); + *prod = pval; + _rm_leading_zeros (*prod); + if (is_zero (*prod)) + (*prod)->n_sign = PLUS; +} + + +/* Some utility routines for the divide: First a one digit multiply. + NUM (with SIZE digits) is multiplied by DIGIT and the result is + placed into RESULT. It is written so that NUM and RESULT can be + the same pointers. */ + +static void +_one_mult (num, size, digit, result) + unsigned char *num; + int size, digit; + unsigned char *result; +{ + int carry, value; + unsigned char *nptr, *rptr; + + if (digit == 0) + memset (result, 0, size); + else + { + if (digit == 1) + memcpy (result, num, size); + else + { + /* Initialize */ + nptr = (unsigned char *) (num+size-1); + rptr = (unsigned char *) (result+size-1); + carry = 0; + + while (size-- > 0) + { + value = *nptr-- * digit + carry; + *rptr-- = value % BASE; + carry = value / BASE; + } + + if (carry != 0) *rptr = carry; + } + } +} + + +/* The full division routine. This computes N1 / N2. It returns + 0 if the division is ok and the result is in QUOT. The number of + digits after the decimal point is SCALE. It returns -1 if division + by zero is tried. The algorithm is found in Knuth Vol 2. p237. */ + +int +bc_divide (n1, n2, quot, scale) + bc_num n1, n2, *quot; + int scale; +{ + bc_num qval; + unsigned char *num1, *num2; + unsigned char *ptr1, *ptr2, *n2ptr, *qptr; + int scale1, val; + unsigned int len1, len2, scale2, qdigits, extra, count; + unsigned int qdig, qguess, borrow, carry; + unsigned char *mval; + char zero; + unsigned int norm; + + /* Test for divide by zero. */ + if (is_zero (n2)) return -1; + + /* Test for divide by 1. If it is we must truncate. */ + if (n2->n_scale == 0) + { + if (n2->n_len == 1 && *n2->n_value == 1) + { + qval = new_num (n1->n_len, scale); + qval->n_sign = (n1->n_sign == n2->n_sign ? PLUS : MINUS); + memset (&qval->n_value[n1->n_len],0,scale); + memcpy (qval->n_value, n1->n_value, + n1->n_len + MIN(n1->n_scale,scale)); + free_num (quot); + *quot = qval; + } + } + + /* Set up the divide. Move the decimal point on n1 by n2's scale. + Remember, zeros on the end of num2 are wasted effort for dividing. */ + scale2 = n2->n_scale; + n2ptr = (unsigned char *) n2->n_value+n2->n_len+scale2-1; + while ((scale2 > 0) && (*n2ptr-- == 0)) scale2--; + + len1 = n1->n_len + scale2; + scale1 = n1->n_scale - scale2; + if (scale1 < scale) + extra = scale - scale1; + else + extra = 0; + num1 = (unsigned char *) malloc (n1->n_len+n1->n_scale+extra+2); + if (num1 == NULL) out_of_memory(); + memset (num1, 0, n1->n_len+n1->n_scale+extra+2); + memcpy (num1+1, n1->n_value, n1->n_len+n1->n_scale); + + len2 = n2->n_len + scale2; + num2 = (unsigned char *) malloc (len2+1); + if (num2 == NULL) out_of_memory(); + memcpy (num2, n2->n_value, len2); + *(num2+len2) = 0; + n2ptr = num2; + while (*n2ptr == 0) + { + n2ptr++; + len2--; + } + + /* Calculate the number of quotient digits. */ + if (len2 > len1+scale) + { + qdigits = scale+1; + zero = TRUE; + } + else + { + zero = FALSE; + if (len2>len1) + qdigits = scale+1; /* One for the zero integer part. */ + else + qdigits = len1-len2+scale+1; + } + + /* Allocate and zero the storage for the quotient. */ + qval = new_num (qdigits-scale,scale); + memset (qval->n_value, 0, qdigits); + + /* Allocate storage for the temporary storage mval. */ + mval = (unsigned char *) malloc (len2+1); + if (mval == NULL) out_of_memory (); + + /* Now for the full divide algorithm. */ + if (!zero) + { + /* Normalize */ + norm = 10 / ((int)*n2ptr + 1); + if (norm != 1) + { + _one_mult (num1, len1+scale1+extra+1, norm, num1); + _one_mult (n2ptr, len2, norm, n2ptr); + } + + /* Initialize divide loop. */ + qdig = 0; + if (len2 > len1) + qptr = (unsigned char *) qval->n_value+len2-len1; + else + qptr = (unsigned char *) qval->n_value; + + /* Loop */ + while (qdig <= len1+scale-len2) + { + /* Calculate the quotient digit guess. */ + if (*n2ptr == num1[qdig]) + qguess = 9; + else + qguess = (num1[qdig]*10 + num1[qdig+1]) / *n2ptr; + + /* Test qguess. */ + if (n2ptr[1]*qguess > + (num1[qdig]*10 + num1[qdig+1] - *n2ptr*qguess)*10 + + num1[qdig+2]) + { + qguess--; + /* And again. */ + if (n2ptr[1]*qguess > + (num1[qdig]*10 + num1[qdig+1] - *n2ptr*qguess)*10 + + num1[qdig+2]) + qguess--; + } + + /* Multiply and subtract. */ + borrow = 0; + if (qguess != 0) + { + *mval = 0; + _one_mult (n2ptr, len2, qguess, mval+1); + ptr1 = (unsigned char *) num1+qdig+len2; + ptr2 = (unsigned char *) mval+len2; + for (count = 0; count < len2+1; count++) + { + val = (int) *ptr1 - (int) *ptr2-- - borrow; + if (val < 0) + { + val += 10; + borrow = 1; + } + else + borrow = 0; + *ptr1-- = val; + } + } + + /* Test for negative result. */ + if (borrow == 1) + { + qguess--; + ptr1 = (unsigned char *) num1+qdig+len2; + ptr2 = (unsigned char *) n2ptr+len2-1; + carry = 0; + for (count = 0; count < len2; count++) + { + val = (int) *ptr1 + (int) *ptr2-- + carry; + if (val > 9) + { + val -= 10; + carry = 1; + } + else + carry = 0; + *ptr1-- = val; + } + if (carry == 1) *ptr1 = (*ptr1 + 1) % 10; + } + + /* We now know the quotient digit. */ + *qptr++ = qguess; + qdig++; + } + } + + /* Clean up and return the number. */ + qval->n_sign = ( n1->n_sign == n2->n_sign ? PLUS : MINUS ); + if (is_zero (qval)) qval->n_sign = PLUS; + _rm_leading_zeros (qval); + free_num (quot); + *quot = qval; + + /* Clean up temporary storage. */ + free (mval); + free (num1); + free (num2); + + return 0; /* Everything is OK. */ +} + + +/* Division *and* modulo for numbers. This computes both NUM1 / NUM2 and + NUM1 % NUM2 and puts the results in QUOT and REM, except that if QUOT + is NULL then that store will be omitted. + */ + +int +bc_divmod (num1, num2, quot, rem, scale) + bc_num num1, num2, *quot, *rem; + int scale; +{ + bc_num quotient; + bc_num temp; + int rscale; + + /* Check for correct numbers. */ + if (is_zero (num2)) return -1; + + /* Calculate final scale. */ + rscale = MAX (num1->n_scale, num2->n_scale+scale); + init_num (&temp); + + /* Calculate it. */ + bc_divide (num1, num2, &temp, scale); + if (quot) + quotient = copy_num(temp); + bc_multiply (temp, num2, &temp, rscale); + bc_sub (num1, temp, rem, rscale); + free_num (&temp); + + if (quot) + { + free_num (quot); + *quot = quotient; + } + + return 0; /* Everything is OK. */ +} + + +/* Modulo for numbers. This computes NUM1 % NUM2 and puts the + result in RESULT. */ + +int +bc_modulo (num1, num2, result, scale) + bc_num num1, num2, *result; + int scale; +{ + return bc_divmod (num1, num2, NULL, result, scale); +} + + +/* Raise BASE to the EXPO power, reduced modulo MOD. The result is + placed in RESULT. If a EXPO is not an integer, + only the integer part is used. */ + +int +bc_raisemod (base, expo, mod, result, scale) + bc_num base, expo, mod, *result; + int scale; +{ + bc_num power, exponent, parity, temp; + int rscale; + + /* Check for correct numbers. */ + if (is_zero(mod)) return -1; + if (is_neg(expo)) return -1; + + /* Set initial values. */ + power = copy_num (base); + exponent = copy_num (expo); + temp = copy_num (_one_); + init_num (&parity); + + /* Check the exponent for scale digits. */ + if (exponent->n_scale != 0) + { + rt_warn ("non-zero scale in exponent"); + bc_divide (exponent, _one_, &exponent, 0); /*truncate */ + } + + /* Check the modulus for scale digits. */ + if (mod->n_scale != 0) + rt_warn ("non-zero scale in modulus"); + + /* Do the calculation. */ + rscale = MAX(scale, base->n_scale); + while ( !is_zero(exponent) ) + { + (void) bc_divmod (exponent, _two_, &exponent, &parity, 0); + if ( !is_zero(parity) ) + { + bc_multiply (temp, power, &temp, rscale); + (void) bc_modulo (temp, mod, &temp, scale); + } + + bc_multiply (power, power, &power, rscale); + (void) bc_modulo (power, mod, &power, scale); + } + + /* Assign the value. */ + free_num (&power); + free_num (&exponent); + free_num (result); + *result = temp; + return 0; /* Everything is OK. */ +} + + +/* Raise NUM1 to the NUM2 power. The result is placed in RESULT. + Maximum exponent is LONG_MAX. If a NUM2 is not an integer, + only the integer part is used. */ + +void +bc_raise (num1, num2, result, scale) + bc_num num1, num2, *result; + int scale; +{ + bc_num temp, power; + long exponent; + int rscale; + char neg; + + /* Check the exponent for scale digits and convert to a long. */ + if (num2->n_scale != 0) + rt_warn ("non-zero scale in exponent"); + exponent = num2long (num2); + if (exponent == 0 && (num2->n_len > 1 || num2->n_value[0] != 0)) + rt_error ("exponent too large in raise"); + + /* Special case if exponent is a zero. */ + if (exponent == 0) + { + free_num (result); + *result = copy_num (_one_); + return; + } + + /* Other initializations. */ + if (exponent < 0) + { + neg = TRUE; + exponent = -exponent; + rscale = scale; + } + else + { + neg = FALSE; + rscale = MIN (num1->n_scale*exponent, MAX(scale, num1->n_scale)); + } + + /* Set initial value of temp. */ + power = copy_num (num1); + while ((exponent & 1) == 0) + { + bc_multiply (power, power, &power, rscale); + exponent = exponent >> 1; + } + temp = copy_num (power); + exponent = exponent >> 1; + + + /* Do the calculation. */ + while (exponent > 0) + { + bc_multiply (power, power, &power, rscale); + if ((exponent & 1) == 1) + bc_multiply (temp, power, &temp, rscale); + exponent = exponent >> 1; + } + + /* Assign the value. */ + if (neg) + { + bc_divide (_one_, temp, result, rscale); + free_num (&temp); + } + else + { + free_num (result); + *result = temp; + } + free_num (&power); +} + +/* In some places we need to check if the number NUM is zero. */ + +char +is_near_zero (num, scale) + bc_num num; + int scale; +{ + int count; + char *nptr; + + /* Initialize */ + count = num->n_len + scale; + nptr = num->n_value; + + /* The check */ + while ((count > 0) && (*nptr++ == 0)) count--; + + if (count != 0 && (count != 1 || *--nptr != 1)) + return FALSE; + else + return TRUE; +} + +/* Take the square root NUM and return it in NUM with SCALE digits + after the decimal place. */ + +int +bc_sqrt (num, scale) + bc_num *num; + int scale; +{ + int rscale, cmp_res, done; + int cscale; + bc_num guess, guess1, point5, diff; + + /* Initial checks. */ + cmp_res = bc_compare (*num, _zero_); + if (cmp_res < 0) + return 0; /* error */ + else + { + if (cmp_res == 0) + { + free_num (num); + *num = copy_num (_zero_); + return 1; + } + } + cmp_res = bc_compare (*num, _one_); + if (cmp_res == 0) + { + free_num (num); + *num = copy_num (_one_); + return 1; + } + + /* Initialize the variables. */ + rscale = MAX (scale, (*num)->n_scale); + init_num (&guess); + init_num (&guess1); + init_num (&diff); + point5 = new_num (1,1); + point5->n_value[1] = 5; + + + /* Calculate the initial guess. */ + if (cmp_res < 0) + /* The number is between 0 and 1. Guess should start at 1. */ + guess = copy_num (_one_); + else + { + /* The number is greater than 1. Guess should start at 10^(exp/2). */ + int2num (&guess,10); + + int2num (&guess1,(*num)->n_len); + bc_multiply (guess1, point5, &guess1, 0); + guess1->n_scale = 0; + bc_raise (guess, guess1, &guess, 0); + free_num (&guess1); + } + + /* Find the square root using Newton's algorithm. */ + done = FALSE; + cscale = 3; + while (!done) + { + free_num (&guess1); + guess1 = copy_num (guess); + bc_divide (*num, guess, &guess, cscale); + bc_add (guess, guess1, &guess, 0); + bc_multiply (guess, point5, &guess, cscale); + bc_sub (guess, guess1, &diff, cscale+1); + if (is_near_zero (diff, cscale)) + if (cscale < rscale+1) + cscale = MIN (cscale*3, rscale+1); + else + done = TRUE; + } + + /* Assign the number and clean up. */ + free_num (num); + bc_divide (guess,_one_,num,rscale); + free_num (&guess); + free_num (&guess1); + free_num (&point5); + free_num (&diff); + return 1; +} + + +/* The following routines provide output for bcd numbers package + using the rules of POSIX bc for output. */ + +/* This structure is used for saving digits in the conversion process. */ +typedef struct stk_rec { + long digit; + struct stk_rec *next; +} stk_rec; + +/* The reference string for digits. */ +char ref_str[] = "0123456789ABCDEF"; + + +/* A special output routine for "multi-character digits." Exactly + SIZE characters must be output for the value VAL. If SPACE is + non-zero, we must output one space before the number. OUT_CHAR + is the actual routine for writing the characters. */ + +void +out_long (val, size, space, out_char) + long val; + int size, space; +#ifdef __STDC__ + void (*out_char)(int); +#else + void (*out_char)(); +#endif +{ + char digits[40]; + int len, ix; + + if (space) (*out_char) (' '); + sprintf (digits, "%ld", val); + len = strlen (digits); + while (size > len) + { + (*out_char) ('0'); + size--; + } + for (ix=0; ix < len; ix++) + (*out_char) (digits[ix]); +} + +/* Output of a bcd number. NUM is written in base O_BASE using OUT_CHAR + as the routine to do the actual output of the characters. */ + +void +out_num (num, o_base, out_char) + bc_num num; + int o_base; +#ifdef __STDC__ + void (*out_char)(int); +#else + void (*out_char)(); +#endif +{ + char *nptr; + int index, fdigit, pre_space; + stk_rec *digits, *temp; + bc_num int_part, frac_part, base, cur_dig, t_num, max_o_digit; + + /* The negative sign if needed. */ + if (num->n_sign == MINUS) (*out_char) ('-'); + + /* Output the number. */ + if (is_zero (num)) + (*out_char) ('0'); + else + if (o_base == 10) + { + /* The number is in base 10, do it the fast way. */ + nptr = num->n_value; + if (num->n_len > 1 || *nptr != 0) + for (index=num->n_len; index>0; index--) + (*out_char) (BCD_CHAR(*nptr++)); + else + nptr++; + + if (std_only && is_zero (num)) + (*out_char) ('0'); + + /* Now the fraction. */ + if (num->n_scale > 0) + { + (*out_char) ('.'); + for (index=0; index<num->n_scale; index++) + (*out_char) (BCD_CHAR(*nptr++)); + } + } + else + { + /* special case ... */ + if (std_only && is_zero (num)) + (*out_char) ('0'); + + /* The number is some other base. */ + digits = NULL; + init_num (&int_part); + bc_divide (num, _one_, &int_part, 0); + init_num (&frac_part); + init_num (&cur_dig); + init_num (&base); + bc_sub (num, int_part, &frac_part, 0); + /* Make the INT_PART and FRAC_PART positive. */ + int_part->n_sign = PLUS; + frac_part->n_sign = PLUS; + int2num (&base, o_base); + init_num (&max_o_digit); + int2num (&max_o_digit, o_base-1); + + + /* Get the digits of the integer part and push them on a stack. */ + while (!is_zero (int_part)) + { + bc_modulo (int_part, base, &cur_dig, 0); + temp = (stk_rec *) malloc (sizeof(stk_rec)); + if (temp == NULL) out_of_memory(); + temp->digit = num2long (cur_dig); + temp->next = digits; + digits = temp; + bc_divide (int_part, base, &int_part, 0); + } + + /* Print the digits on the stack. */ + if (digits != NULL) + { + /* Output the digits. */ + while (digits != NULL) + { + temp = digits; + digits = digits->next; + if (o_base <= 16) + (*out_char) (ref_str[ (int) temp->digit]); + else + out_long (temp->digit, max_o_digit->n_len, 1, out_char); + free (temp); + } + } + + /* Get and print the digits of the fraction part. */ + if (num->n_scale > 0) + { + (*out_char) ('.'); + pre_space = 0; + t_num = copy_num (_one_); + while (t_num->n_len <= num->n_scale) { + bc_multiply (frac_part, base, &frac_part, num->n_scale); + fdigit = num2long (frac_part); + int2num (&int_part, fdigit); + bc_sub (frac_part, int_part, &frac_part, 0); + if (o_base <= 16) + (*out_char) (ref_str[fdigit]); + else { + out_long (fdigit, max_o_digit->n_len, pre_space, out_char); + pre_space = 1; + } + bc_multiply (t_num, base, &t_num, 0); + } + free_num (&t_num); + } + + /* Clean up. */ + free_num (&int_part); + free_num (&frac_part); + free_num (&base); + free_num (&cur_dig); + free_num (&max_o_digit); + } +} + +#if DEBUG > 0 + +/* Debugging procedures. Some are just so one can call them from the + debugger. */ + +/* p_n prints the number NUM in base 10. */ + +void +p_n (num) + bc_num num; +{ + out_num (num, 10, out_char); +} + + +/* p_b prints a character array as if it was a string of bcd digits. */ +void +p_v (name, num, len) + char *name; + unsigned char *num; + int len; +{ + int i; + printf ("%s=", name); + for (i=0; i<len; i++) printf ("%c",BCD_CHAR(num[i])); + printf ("\n"); +} + + +/* Convert strings to bc numbers. Base 10 only.*/ + +void +str2num (num, str, scale) + bc_num *num; + char *str; + int scale; +{ + int digits, strscale; + char *ptr, *nptr; + char zero_int; + + /* Prepare num. */ + free_num (num); + + /* Check for valid number and count digits. */ + ptr = str; + digits = 0; + strscale = 0; + zero_int = FALSE; + if ( (*ptr == '+') || (*ptr == '-')) ptr++; /* Sign */ + while (*ptr == '0') ptr++; /* Skip leading zeros. */ + while (isdigit(*ptr)) ptr++, digits++; /* digits */ + if (*ptr == '.') ptr++; /* decimal point */ + while (isdigit(*ptr)) ptr++, strscale++; /* digits */ + if ((*ptr != '\0') || (digits+strscale == 0)) + { + *num = copy_num (_zero_); + return; + } + + /* Adjust numbers and allocate storage and initialize fields. */ + strscale = MIN(strscale, scale); + if (digits == 0) + { + zero_int = TRUE; + digits = 1; + } + *num = new_num (digits, strscale); + + /* Build the whole number. */ + ptr = str; + if (*ptr == '-') + { + (*num)->n_sign = MINUS; + ptr++; + } + else + { + (*num)->n_sign = PLUS; + if (*ptr == '+') ptr++; + } + while (*ptr == '0') ptr++; /* Skip leading zeros. */ + nptr = (*num)->n_value; + if (zero_int) + { + *nptr++ = 0; + digits = 0; + } + for (;digits > 0; digits--) + *nptr++ = CH_VAL(*ptr++); + + + /* Build the fractional part. */ + if (strscale > 0) + { + ptr++; /* skip the decimal point! */ + for (;strscale > 0; strscale--) + *nptr++ = CH_VAL(*ptr++); + } +} + +/* Convert a numbers to a string. Base 10 only.*/ + +char +*num2str (num) + bc_num num; +{ + char *str, *sptr; + char *nptr; + int index, signch; + + /* Allocate the string memory. */ + signch = ( num->n_sign == PLUS ? 0 : 1 ); /* Number of sign chars. */ + if (num->n_scale > 0) + str = (char *) malloc (num->n_len + num->n_scale + 2 + signch); + else + str = (char *) malloc (num->n_len + 1 + signch); + if (str == NULL) out_of_memory(); + + /* The negative sign if needed. */ + sptr = str; + if (signch) *sptr++ = '-'; + + /* Load the whole number. */ + nptr = num->n_value; + for (index=num->n_len; index>0; index--) + *sptr++ = BCD_CHAR(*nptr++); + + /* Now the fraction. */ + if (num->n_scale > 0) + { + *sptr++ = '.'; + for (index=0; index<num->n_scale; index++) + *sptr++ = BCD_CHAR(*nptr++); + } + + /* Terminate the string and return it! */ + *sptr = '\0'; + return (str); +} +#endif diff --git a/contrib/bc/lib/vfprintf.c b/contrib/bc/lib/vfprintf.c new file mode 100644 index 0000000..78edd35 --- /dev/null +++ b/contrib/bc/lib/vfprintf.c @@ -0,0 +1,31 @@ +/* vfprintf.c -- this was provided for minix. It may not + work on any other system. */ + +#include "config.h" +#ifndef HAVE_VPRINTF +#ifndef HAVE_DOPRINT +# error need vfprintf() or doprint() +#else + +#ifdef HAVE_LIB_H +#include <lib.h> +#endif +#ifdef HAVE_STDARG_H +#include <stdarg.h> +#endif +#ifdef HAVE_STDIO_H +#include <stdio.h> +#endif + +int vfprintf(file, format, argp) +FILE *file; +_CONST char *format; +va_list argp; +{ + _doprintf(file, format, argp); + if (testflag(file, PERPRINTF)) fflush(file); + return 0; +} + +#endif /* HAVE_DOPRINT */ +#endif /* !HAVE_VFPRINTF */ |
