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author | jkh <jkh@FreeBSD.org> | 1994-12-30 23:33:10 +0000 |
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committer | jkh <jkh@FreeBSD.org> | 1994-12-30 23:33:10 +0000 |
commit | 2517028602ac0a7f098a9c69f3f9889df8aeda81 (patch) | |
tree | 37db35d514c69a356634c1a2cbaecf365cbb68b2 /gnu/usr.bin/gdb/libiberty | |
parent | cbfab23866a6fbbeedaea00fb9cc3c21f292ba86 (diff) | |
download | FreeBSD-src-2517028602ac0a7f098a9c69f3f9889df8aeda81.zip FreeBSD-src-2517028602ac0a7f098a9c69f3f9889df8aeda81.tar.gz |
Bring in the files added by Gary Jennejohn's gdb update.
Submitted by: gj
Diffstat (limited to 'gnu/usr.bin/gdb/libiberty')
-rw-r--r-- | gnu/usr.bin/gdb/libiberty/vasprintf.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/gnu/usr.bin/gdb/libiberty/vasprintf.c b/gnu/usr.bin/gdb/libiberty/vasprintf.c new file mode 100644 index 0000000..b3ba0ca --- /dev/null +++ b/gnu/usr.bin/gdb/libiberty/vasprintf.c @@ -0,0 +1,139 @@ +/* Like vsprintf but provides a pointer to malloc'd storage, which must + be freed by the caller. + Copyright (C) 1994 Free Software Foundation, Inc. + +This file is part of the libiberty library. +Libiberty 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. + +Libiberty 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 libiberty; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <stdio.h> +#include <varargs.h> + +#ifdef TEST +int global_total_width; +#endif + +unsigned long strtoul (); +char *malloc (); + +int +vasprintf (result, format, args) + char **result; + char *format; + va_list args; +{ + char *p = format; + /* Add one to make sure that it is never zero, which might cause malloc + to return NULL. */ + int total_width = strlen (format) + 1; + va_list ap = args; + + while (*p != '\0') + { + if (*p++ == '%') + { + while (strchr ("-+ #0", *p)) + ++p; + if (*p == '*') + { + ++p; + total_width += abs (va_arg (ap, int)); + } + else + total_width += strtoul (p, &p, 10); + if (*p == '.') + { + ++p; + if (*p == '*') + { + ++p; + total_width += abs (va_arg (ap, int)); + } + else + total_width += strtoul (p, &p, 10); + } + while (strchr ("hlL", *p)) + ++p; + /* Should be big enough for any format specifier except %s. */ + total_width += 30; + switch (*p) + { + case 'd': + case 'i': + case 'o': + case 'u': + case 'x': + case 'X': + case 'c': + va_arg (ap, int); + break; + case 'f': + case 'e': + case 'E': + case 'g': + case 'G': + va_arg (ap, double); + break; + case 's': + total_width += strlen (va_arg (ap, char *)); + break; + case 'p': + case 'n': + va_arg (ap, char *); + break; + } + } + } +#ifdef TEST + global_total_width = total_width; +#endif + *result = malloc (total_width); + if (*result != NULL) + return vsprintf (*result, format, args); + else + return 0; +} + +#ifdef TEST +void +checkit (va_alist) + va_dcl +{ + va_list args; + char *format; + char *result; + + va_start (args); + format = va_arg (args, char *); + vasprintf (&result, format, args); + if (strlen (result) < global_total_width) + printf ("PASS: "); + else + printf ("FAIL: "); + printf ("%d %s\n", global_total_width, result); +} + +int +main () +{ + checkit ("%d", 0x12345678); + checkit ("%200d", 5); + checkit ("%.300d", 6); + checkit ("%100.150d", 7); + checkit ("%s", "jjjjjjjjjiiiiiiiiiiiiiiioooooooooooooooooppppppppppppaa\n\ +777777777777777777333333333333366666666666622222222222777777777777733333"); + checkit ("%f%s%d%s", 1.0, "foo", 77, "asdjffffffffffffffiiiiiiiiiiixxxxx"); +} +#endif /* TEST */ |