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author | ljo <ljo@FreeBSD.org> | 1994-01-05 02:53:40 +0000 |
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committer | ljo <ljo@FreeBSD.org> | 1994-01-05 02:53:40 +0000 |
commit | 7af0a7319e4c7486ad7ad1a4f8c3af99350913a6 (patch) | |
tree | 281a7aa9f1071a0d1c3dfbb540ef9fc0666d7947 /usr.bin/f2c/f2c.1 | |
parent | bcc5e5de92fa3955a841f055410ab274543f491a (diff) | |
parent | b0bfbf3dbded7a8d47a844bd1ae18498e620a6f2 (diff) | |
download | FreeBSD-src-7af0a7319e4c7486ad7ad1a4f8c3af99350913a6.zip FreeBSD-src-7af0a7319e4c7486ad7ad1a4f8c3af99350913a6.tar.gz |
This commit was generated by cvs2svn to compensate for changes in r943,
which included commits to RCS files with non-trunk default branches.
Diffstat (limited to 'usr.bin/f2c/f2c.1')
-rw-r--r-- | usr.bin/f2c/f2c.1 | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/usr.bin/f2c/f2c.1 b/usr.bin/f2c/f2c.1 new file mode 100644 index 0000000..419ba03 --- /dev/null +++ b/usr.bin/f2c/f2c.1 @@ -0,0 +1,191 @@ + + F2C(1) F2C(1) + + NAME + f2c - Convert Fortran 77 to C or C++ + + SYNOPSIS + f2c [ option ... ] file ... + + DESCRIPTION + F2c converts Fortran 77 source code in files with names end- + ing in `.f' or `.F' to C (or C++) source files in the cur- + rent directory, with `.c' substituted for the final `.f' or + `.F'. If no Fortran files are named, f2c reads Fortran from + standard input and writes C on standard output. File names + that end with `.p' or `.P' are taken to be prototype files, + as produced by option `-P', and are read first. + + The following options have the same meaning as in f77(1). + + -C Compile code to check that subscripts are within + declared array bounds. + + -I2 Render INTEGER and LOGICAL as short, INTEGER*4 as long + int. Assume the default libF77 and libI77: allow only + INTEGER*4 (and no LOGICAL) variables in INQUIREs. + Option `-I4' confirms the default rendering of INTEGER + as long int. + + -onetrip + Compile DO loops that are performed at least once if + reached. (Fortran 77 DO loops are not performed at all + if the upper limit is smaller than the lower limit.) + + -U Honor the case of variable and external names. Fortran + keywords must be in lower case. + + -u Make the default type of a variable `undefined' rather + than using the default Fortran rules. + + -w Suppress all warning messages. If the option is + `-w66', only Fortran 66 compatibility warnings are sup- + pressed. + + The following options are peculiar to f2c. + + -A Produce ANSI C. Default is old-style C. + + -a Make local variables automatic rather than static + unless they appear in a DATA, EQUIVALENCE, NAMELIST, or + SAVE statement. + + -C++ Output C++ code. + + -c Include original Fortran source as comments. + + Page 1 Local (printed 2/2/93) + + F2C(1) F2C(1) + + -E Declare uninitialized COMMON to be Extern (overridably + defined in f2c.h as extern). + + -ec Place uninitialized COMMON blocks in separate files: + COMMON /ABC/ appears in file abc_com.c. Option `-e1c' + bundles the separate files into the output file, with + comments that give an unbundling sed(1) script. + + -ext Complain about f77(1) extensions. + + -f Assume free-format input: accept text after column 72 + and do not pad fixed-format lines shorter than 72 char- + acters with blanks. + + -72 Treat text appearing after column 72 as an error. + + -g Include original Fortran line numbers in #line lines. + + -h Emulate Fortran 66's treatment of Hollerith: try to + align character strings on word (or, if the option is + `-hd', on double-word) boundaries. + + -i2 Similar to -I2, but assume a modified libF77 and libI77 + (compiled with -Df2c_i2), so INTEGER and LOGICAL vari- + ables may be assigned by INQUIRE and array lengths are + stored in short ints. + + -kr Use temporary values to enforce Fortran expression + evaluation where K&R (first edition) parenthesization + rules allow rearrangement. If the option is `-krd', + use double precision temporaries even for single- + precision operands. + + -P Write a file.P of ANSI (or C++) prototypes for defini- + tions in each input file.f or file.F. When reading + Fortran from standard input, write prototypes at the + beginning of standard output. Option -Ps implies -P + and gives exit status 4 if rerunning f2c may change + prototypes or declarations. + + -p Supply preprocessor definitions to make common-block + members look like local variables. + + -R Do not promote REAL functions and operations to DOUBLE + PRECISION. Option `-!R' confirms the default, which + imitates f77. + + -r Cast values of REAL functions (including intrinsics) to + REAL. + + -r8 Promote REAL to DOUBLE PRECISION, COMPLEX to DOUBLE + COMPLEX. + + Page 2 Local (printed 2/2/93) + + F2C(1) F2C(1) + + -s Preserve multidimensional subscripts. + + -Tdir + Put temporary files in directory dir. + + -w8 Suppress warnings when COMMON or EQUIVALENCE forces + odd-word alignment of doubles. + + -Wn Assume n characters/word (default 4) when initializing + numeric variables with character data. + + -z Do not implicitly recognize DOUBLE COMPLEX. + + -!bs Do not recognize backslash escapes (\", \', \0, \\, \b, + \f, \n, \r, \t, \v) in character strings. + + -!c Inhibit C output, but produce -P output. + + -!I Reject include statements. + + -!i8 Disallow INTEGER*8. + + -!it Don't infer types of untyped EXTERNAL procedures from + use as parameters to previously defined or prototyped + procedures. + + -!P Do not attempt to infer ANSI or C++ prototypes from + usage. + + The resulting C invokes the support routines of f77; object + code should be loaded by f77 or with ld(1) or cc(1) options + -lF77 -lI77 -lm. Calling conventions are those of f77: see + the reference below. + + FILES + file.[fF] + input file + + *.c output file + + /usr/include/f2c.h + header file + + /usr/lib/libF77.a + intrinsic function library + + /usr/lib/libI77.a + Fortran I/O library + + /lib/libc.a + C library, see section 3 + + Page 3 Local (printed 2/2/93) + + F2C(1) F2C(1) + + SEE ALSO + S. I. Feldman and P. J. Weinberger, `A Portable Fortran 77 + Compiler', UNIX Time Sharing System Programmer's Manual, + Tenth Edition, Volume 2, AT&T Bell Laboratories, 1990. + + DIAGNOSTICS + The diagnostics produced by f2c are intended to be self- + explanatory. + + BUGS + Floating-point constant expressions are simplified in the + floating-point arithmetic of the machine running f2c, so + they are typically accurate to at most 16 or 17 decimal + places. + Untypable EXTERNAL functions are declared int. + + Page 4 Local (printed 2/2/93) + |