// This code is Public Domain. Use, modify, and redistribute at will.
// ----------------------------------------------------------------------------
-int strncmp( const char * s1, const char * s2, size_t n ) { /* TODO */ };
+#include <__size_t.h>
+
+int strncmp( const char * src_1, const char * src_2, size_t n )
+{
+ while ( ( n-- != 0 ) && ( *src_1 == *src_2 ) )
+ {
+ ++src_1;
+ ++src_2;
+ }
+ if ( ( n == 0 ) )
+ {
+ return 0;
+ }
+ return ( *src_1 - *src_2 );
+}