X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/ba6e6b64033b1f9de49feccb5c9cd438354481f7..0f00dc4c8eb47e67bc0f148c2dd109f73a451e0a:/math/bittest.c

diff --git a/math/bittest.c b/math/bittest.c
new file mode 100644
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--- /dev/null
+++ b/math/bittest.c
@@ -0,0 +1,56 @@
+/* -*-c-*-
+ *
+ * Check the bit operations work
+ *
+ * (c) 2002 Straylight/Edgeware
+ */
+
+/*----- Licensing notice --------------------------------------------------*
+ *
+ * This file is part of Catacomb.
+ *
+ * Catacomb is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Library General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * Catacomb is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with Catacomb; if not, write to the Free
+ * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+/*----- Header files ------------------------------------------------------*/
+
+#include <stdio.h>
+#include <string.h>
+#include "bitops.h"
+#include "mpx.h"
+
+/*----- Main code ---------------------------------------------------------*/
+
+int main(void)
+{
+  int rc = 0;
+#define CHECK(string) do {						\
+  const char *ref = #string;						\
+  char buf[5];								\
+  buf[0] = B##string(0u, 0u) & 1u? '1' : '0';				\
+  buf[1] = B##string(0u, 1u) & 1u? '1' : '0';				\
+  buf[2] = B##string(1u, 0u) & 1u? '1' : '0';				\
+  buf[3] = B##string(1u, 1u) & 1u? '1' : '0';				\
+  buf[4] = 0;								\
+  if (strcmp(buf, ref) != 0) {						\
+    fprintf(stderr, "mismatch ref `%s' != buf `%s'\n", ref, buf);	\
+    rc = 1;								\
+  }									\
+} while (0);
+  MPX_DOBIN(CHECK)
+  return (rc);
+}
+/*----- That's all, folks -------------------------------------------------*/