X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstring%2Fmemcmp.c;h=35def11b33d4bc1e0c364501ba14e4b16e497735;hb=b06bbb1e2a100095da21e18139e4f960604d0d02;hp=43b7e585f348f3d112ef817009b94e38d97758ac;hpb=34893ecc2200dc7017c36a54cb6c5f4c2378b5ec;p=pdclib

diff --git a/functions/string/memcmp.c b/functions/string/memcmp.c
index 43b7e58..35def11 100644
--- a/functions/string/memcmp.c
+++ b/functions/string/memcmp.c
@@ -5,4 +5,20 @@
 // This code is Public Domain. Use, modify, and redistribute at will.
 // ----------------------------------------------------------------------------
 
-int memcmp( const void * s1, const void * s2, size_t n ) { /* TODO */ };
+#include <__size_t.h>
+
+int memcmp( const void * src_1, const void * src_2, size_t n )
+{
+    const unsigned char * p1 = (const unsigned char *) src_1;
+    const unsigned char * p2 = (const unsigned char *) src_2;
+    while ( n-- )
+    {
+        if ( *p1 != *p2 )
+        {
+            return *p2 - *p1;
+        }
+        ++p1;
+        ++p2;
+    }
+    return 0;
+}