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[/] [or1k/] [tags/] [start/] [insight/] [libiberty/] [memcmp.c] - Rev 1780
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/* 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; }
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