--- /dev/null
+// ----------------------------------------------------------------------------
+// $Id$
+// ----------------------------------------------------------------------------
+// Public Domain C Library - http://pdclib.sourceforge.net
+// This code is Public Domain. Use, modify, and redistribute at will.
+// ----------------------------------------------------------------------------
+
+// ----------------------------------------------------------------------------
+// C++
+
+const void * memchr( const void * s, int c, size_t n ) { /* TODO */ };
+void * memchr( void * s, int c, size_t n ) { /* TODO */ };
+
+// ----------------------------------------------------------------------------
+// Standard C
+
+void * memchr( const void * s, int c, size_t n ) { /* TODO */ };