// This code is Public Domain. Use, modify, and redistribute at will.
// ----------------------------------------------------------------------------
-// ----------------------------------------------------------------------------
-// C++
-
-const char * strchr( const char * s, int c ) { /* TODO */ };
-char * strchr( char * s, int c ) { /* TODO */ };
-
-// ----------------------------------------------------------------------------
-// Standard C
+#include <__NULL.h>
-char * strchr( const char * s, int c ) { /* TODO */ };
+char * strchr( const char * src, int c )
+{
+ while ( *src != '\0' )
+ {
+ if ( *src == (const char) c )
+ {
+ return (char *) src;
+ }
+ ++src;
+ }
+ return NULL;
+}