-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
-
-size_t fwrite( const void * restrict ptr, size_t size, size_t nelem, FILE * restrict stream ) { /* TODO */ };
+/* $Id$ */
+
+/* fwrite( const void *, size_t, size_t, FILE * )
+
+ This file is part of the Public Domain C Library (PDCLib).
+ Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <stdio.h>
+#include <_PDCLIB_glue.h>
+
+#ifndef REGTEST
+
+size_t fwrite( const void * _PDCLIB_restrict ptr, size_t size, size_t nmemb, struct _PDCLIB_file_t * _PDCLIB_restrict stream )
+{
+ return _PDCLIB_write( stream->handle, ptr, size * nmemb );
+}
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+ FILE * fh;
+ TESTCASE( ( fh = fopen( "testfile", "w" ) ) != NULL );
+ TESTCASE( fwrite( "SUCCESS testing fwrite()\n", 1, 25, fh ) == 25 );
+ TESTCASE( fclose( fh ) == 0 );
+ /* TODO: Add readback test. */
+ TESTCASE( remove( "testfile" ) == 0 );
+ return TEST_RESULTS;
+}
+
+#endif