X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdlib%2Fatexit.c;h=573e4ba68bf706590b71e377ba0e21cbf45eae46;hb=b3418d66bba8ec0ec0adde6d62ab19962cfc4a34;hp=ac478c94cabff262e50606b8632018b16dec2896;hpb=34893ecc2200dc7017c36a54cb6c5f4c2378b5ec;p=pdclib

diff --git a/functions/stdlib/atexit.c b/functions/stdlib/atexit.c
index ac478c9..573e4ba 100644
--- a/functions/stdlib/atexit.c
+++ b/functions/stdlib/atexit.c
@@ -1,9 +1,53 @@
-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
-
-// TODO: C/C++ linkages
-int atexit( void (*func) ( void ) ) { /* TODO */ };
+/* $Id$ */
+
+/* Release $Name$ */
+
+/* atexit( void (*)( void ) )
+
+   This file is part of the Public Domain C Library (PDCLib).
+   Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <stdlib.h>
+
+#ifndef REGTEST
+
+/* TODO: Required by both atexit() and exit(). */
+struct _PDCLIB_exitfunc_t
+{
+    struct _PDCLIB_exitfunc_t * next;
+    void (*func)( void );
+};
+
+extern struct _PDCLIB_exitfunc_t * regstack;
+
+int atexit( void (*func)( void ) )
+{
+    struct _PDCLIB_exitfunc_t * regfunc = (struct _PDCLIB_exitfunc_t *)malloc( sizeof( struct _PDCLIB_exitfunc_t ) );
+    if ( regfunc == NULL )
+    {
+        return -1;
+    }
+    else
+    {
+        regfunc->func = func;
+	regfunc->next = regstack;
+	regstack = regfunc;
+	return 0;
+    }
+}
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main()
+{
+    int NO_TESTDRIVER = 0;
+    BEGIN_TESTS;
+    TESTCASE( NO_TESTDRIVER );
+    return TEST_RESULTS;
+}
+
+#endif