X-Git-Url: https://pd.if.org/git/?p=pdclib;a=blobdiff_plain;f=functions%2Fstdio%2Fsetbuf.c;h=749ddc9d2a8aeefc366505fd6c2e1ec0a6db821d;hp=6d689b0f3f0fc2f8fdf66fb7cba894abfbd1a318;hb=da0f3f353d417fed71f358a48d5d5394145e460d;hpb=34893ecc2200dc7017c36a54cb6c5f4c2378b5ec

diff --git a/functions/stdio/setbuf.c b/functions/stdio/setbuf.c
index 6d689b0..749ddc9 100644
--- a/functions/stdio/setbuf.c
+++ b/functions/stdio/setbuf.c
@@ -1,8 +1,56 @@
-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
-
-void setbuf( FILE * restrict stream, char * restrict buf ) { /* TODO */ };
+/* setbuf( FILE *, char * )
+
+   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>
+
+#ifndef REGTEST
+
+void setbuf( FILE * _PDCLIB_restrict stream, char * _PDCLIB_restrict buf )
+{
+    if ( buf == NULL )
+    {
+        setvbuf( stream, buf, _IONBF, BUFSIZ );
+    }
+    else
+    {
+        setvbuf( stream, buf, _IOFBF, BUFSIZ );
+    }
+}
+
+#endif
+
+#ifdef TEST
+#include "_PDCLIB_test.h"
+#include <stdlib.h>
+#ifndef REGTEST
+#include "_PDCLIB_io.h"
+#endif
+
+int main( void )
+{
+    /* TODO: Extend testing once setvbuf() is finished. */
+#ifndef REGTEST
+    char buffer[ BUFSIZ + 1 ];
+    FILE * fh;
+    /* full buffered */
+    TESTCASE( ( fh = tmpfile() ) != NULL );
+    setbuf( fh, buffer );
+    TESTCASE( fh->buffer == buffer );
+    TESTCASE( fh->bufsize == BUFSIZ );
+    TESTCASE( ( fh->status & ( _IOFBF | _IONBF | _IOLBF ) ) == _IOFBF );
+    TESTCASE( fclose( fh ) == 0 );
+    /* not buffered */
+    TESTCASE( ( fh = tmpfile() ) != NULL );
+    setbuf( fh, NULL );
+    TESTCASE( ( fh->status & ( _IOFBF | _IONBF | _IOLBF ) ) == _IONBF );
+    TESTCASE( fclose( fh ) == 0 );
+#else
+    puts( " NOTEST setbuf() test driver is PDCLib-specific." );
+#endif
+    return TEST_RESULTS;
+}
+
+#endif