CbC/CbC_gcc: libiberty/memcmp.c comparison

first commit

comparison

equal deleted inserted replaced

--1:000000000000
+:a06113de4d67
+/* memcmp -- compare two memory regions.
+This function is in the public domain.  */
+/*
+@deftypefn Supplemental int memcmp (const void *@var{x}, const void *@var{y}, size_t @var{count})
+Compares the first @var{count} bytes of two areas of memory.  Returns
+zero if they are the same, a value less than zero if @var{x} is
+lexically less than @var{y}, or a value greater than zero if @var{x}
+is lexically greater than @var{y}.  Note that lexical order is determined
+as if comparing unsigned char arrays.
+@end deftypefn
+*/
+#include <ansidecl.h>
+#include <stddef.h>
+int
+memcmp (const PTR str1, const PTR str2, 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;
+}

Mercurial > hg > CbC > CbC_gcc