X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdlib%2Fcalloc.c;h=abb63b08fa3ff02b47b0d744a372be656b6b5164;hb=d6f1494a4f38a212b29a13ee713885058dcf0fe7;hp=a9a485fee3ff64c7e4fa64492843e146c31f7f6b;hpb=1d9d92ba957a0b8307c9a65c35867fde68e6533b;p=pdclib

diff --git a/functions/stdlib/calloc.c b/functions/stdlib/calloc.c
index a9a485f..abb63b0 100644
--- a/functions/stdlib/calloc.c
+++ b/functions/stdlib/calloc.c
@@ -1,34 +1,47 @@
-/* ----------------------------------------------------------------------------
- * $Id$
- * ----------------------------------------------------------------------------
- * Public Domain C Library - http://pdclib.sourceforge.net
- * This code is Public Domain. Use, modify, and redistribute at will.
- * --------------------------------------------------------------------------*/
+/* void * calloc( size_t, size_t )
 
-void * calloc( size_t nelem, size_t size ) { /* TODO */ };
+   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>
+#include <string.h>
 
-/* PDPC code - unreviewed
+#ifndef REGTEST
+
+void * calloc( size_t nmemb, size_t size )
 {
-    void *ptr;
-    size_t total;
-    
-    if (nmemb == 1)
-    {
-        total = size;
-    }
-    else if (size == 1)
-    {
-        total = nmemb;
-    }
-    else
-    {
-        total = nmemb * size;
-    }
-    ptr = malloc(total);
-    if (ptr != NULL)
+    /* assign memory for nmemb elements of given size */
+    void * rc = malloc( nmemb * size );
+    if ( rc != NULL )
     {
-        memset(ptr, '\0', total);
+        /* zero-initialize the memory */
+        memset( rc, 0, nmemb * size );
     }
-    return (ptr);
+    return rc;
 }
-*/
+
+#endif
+
+#ifdef TEST
+#include "_PDCLIB_test.h"
+
+int main( void )
+{
+    char * s;
+    TESTCASE( ( s = calloc( 3, 2 ) ) != NULL );
+    TESTCASE( s[0] == '\0' );
+    TESTCASE( s[5] == '\0' );
+    free( s );
+    TESTCASE( ( s = calloc( 6, 1 ) ) != NULL );
+    TESTCASE( s[0] == '\0' );
+    TESTCASE( s[5] == '\0' );
+    free( s );
+    TESTCASE( ( s = calloc( 1, 6 ) ) != NULL );
+    TESTCASE( s[0] == '\0' );
+    TESTCASE( s[5] == '\0' );
+    free( s );
+    return TEST_RESULTS;
+}
+
+#endif