d4d868a280
libiberty/: * splay-tree.c: Escape wrapping newlines in texinfo markup with '@', to fix function declaration output rendering. * gather-docs: Relax and improve macro name matching to actually match all current names and to allow input line wrapping. * bsearch.c, concat.c, crc32.c, fnmatch.txh, fopen_unlocked.c, hashtab.c, insque.c, make-relative-prefix.c, memchr.c, memcmp.c, memcpy.c, memmem.c, memmove.c, mempcpy.c, memset.c, pexecute.txh, random.c, setenv.c, setproctitle.c, simple-object.txh, snprintf.c, stpncpy.c, strncmp.c, strtod.c, strtol.c, vasprintf.c, vprintf.c, vsnprintf.c, xmemdup.c: Wrap long texinfo input lines. * functions.texi: Regenerate.
35 lines
876 B
C
35 lines
876 B
C
/* memcmp -- compare two memory regions.
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This function is in the public domain. */
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/*
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@deftypefn Supplemental int memcmp (const void *@var{x}, const void *@var{y}, @
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size_t @var{count})
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Compares the first @var{count} bytes of two areas of memory. Returns
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zero if they are the same, a value less than zero if @var{x} is
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lexically less than @var{y}, or a value greater than zero if @var{x}
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is lexically greater than @var{y}. Note that lexical order is determined
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as if comparing unsigned char arrays.
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@end deftypefn
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*/
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#include <ansidecl.h>
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#include <stddef.h>
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int
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memcmp (const PTR str1, const PTR str2, size_t count)
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{
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register const unsigned char *s1 = (const unsigned char*)str1;
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register const unsigned char *s2 = (const unsigned char*)str2;
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while (count-- > 0)
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{
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if (*s1++ != *s2++)
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return s1[-1] < s2[-1] ? -1 : 1;
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}
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return 0;
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}
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