mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-21 12:19:35 +08:00
69197e7e5e
libiberty: * configure.in (ac_libiberty_warn_cflags): Add -pedantic. * choose-temp.c (try, choose_temp_base, make_temp_file): Constify. * cp-demangle.c (demangle_char): Change parameter from char to int. (demangle_expression, demangle_expr_primary): Remove extra semi-colon in prototype. * dyn-string.c (dyn_string_append_char): Change parameter from char to int. * memcmp.c (memcmp): Constify. * mkstemps.c (gcc_uint64_t): Mark GNUC `long long' case with __extension__. * partition.c (elem_compare): Prototype. Don't cast away const-ness. * setenv.c (setenv): Use braces to avoid ambiguous `else'. include: * demangle.h (demangling_styles): Remove trailing comma in enum. * dyn-string.h (dyn_string_append_char): Change parameter from char to int. From-SVN: r34447
39 lines
811 B
C
39 lines
811 B
C
/* memcmp -- compare two memory regions.
|
|
This function is in the public domain. */
|
|
|
|
/*
|
|
NAME
|
|
memcmp -- compare two memory regions
|
|
|
|
SYNOPSIS
|
|
int memcmp (const void *from, const void *to, size_t count)
|
|
|
|
DESCRIPTION
|
|
Compare two memory regions and return less than,
|
|
equal to, or greater than zero, according to lexicographical
|
|
ordering of the compared regions.
|
|
*/
|
|
|
|
#include <ansidecl.h>
|
|
#ifdef __STDC__
|
|
#include <stddef.h>
|
|
#else
|
|
#define size_t unsigned long
|
|
#endif
|
|
|
|
int
|
|
DEFUN(memcmp, (str1, str2, count),
|
|
const PTR str1 AND const PTR str2 AND size_t count)
|
|
{
|
|
register const unsigned char *s1 = (const unsigned char*)str1;
|
|
register const unsigned char *s2 = (const unsigned char*)str2;
|
|
|
|
while (count-- > 0)
|
|
{
|
|
if (*s1++ != *s2++)
|
|
return s1[-1] < s2[-1] ? -1 : 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|