Minor doc extension.

[pdclib] / functions / string / strchr.c

diff --git a/functions/string/strchr.c b/functions/string/strchr.c
index fb169049e22171e7f7fb9200c44fdf3ebbe653ef..bff8d054e20ae212c8d5e96064e1b8bbe2a5729d 100644 (file)
--- a/functions/string/strchr.c
+++ b/functions/string/strchr.c
@@ -5,13 +5,17 @@
 // 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;
+}