aaa5f039eb
* configure.in (MAKEINFO, PERL): Detect these. (--enable-maintainer-mode): Add. * configure: Regenerate. * Makefile.in (MAKEINFO, PERL): Define. (libiberty.info, libiberty.dvi, libiberty.html): New. (CFILES): Add bsearch.c. (CONFIGURED_OFILES): New, list of objects configure might add. (maint-missing, maint-buildall): New, for maintainers only. (clean, mostlyclean): Add info/dvi/html files. * libiberty.texi, copying-lib.texi, obstacks.texi, functions.texi: New. * gather-docs: New, for maintainers. * maint-tool: New, for maintainers. * alloca.c, atexit.c, basename.c, bcmp.c, bcopy.c, bsearch.c, bzero.c, calloc.c, clock.c, configure.in, configure, getcwd.c, getpagesize.c, getpwd.c, index.c, memchr.c, memcmp.c, memcpy.c, memmove.c, memset.c, putenv.c, rename.c, rindex.c, setenv.c, sigsetmask.c, strcasecmp.c, strchr.c, strdup.c, strerror.c, strncasecmp.c, strncmp.c, strrchr.c, strstr.c, strtod.c, strtol.c, tmpnam.c, vfork.c, vprintf.c, waitpid.c, xatexit.c, xexit.c, xmalloc.c, xmemdup.c, xstrdup.c, xstrerror.c: Add or update documentation. Co-Authored-By: Phil Edwards <pedwards@disaster.jaj.com> From-SVN: r45828
40 lines
702 B
C
40 lines
702 B
C
/* strncmp -- compare two strings, stop after n bytes.
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This function is in the public domain. */
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/*
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@deftypefn Supplemental int strncmp (const char *@var{s1}, const char *@var{s2}, size_t @var{n})
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Compares the first @var{n} bytes of two strings, returning a value as
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@code{strcmp}.
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@end deftypefn
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*/
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#include <ansidecl.h>
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#ifdef __STDC__
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#include <stddef.h>
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#else
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#define size_t unsigned long
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#endif
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int
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strncmp(s1, s2, n)
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const char *s1, *s2;
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register size_t n;
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{
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register unsigned char u1, u2;
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while (n-- > 0)
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{
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u1 = (unsigned char) *s1++;
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u2 = (unsigned char) *s2++;
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if (u1 != u2)
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return u1 - u2;
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if (u1 == '\0')
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return 0;
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}
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return 0;
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}
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