1 files changed, 64 insertions, 0 deletions
diff --git a/test/builtin/rs_vand/rs_galois_test.c b/test/builtin/rs_vand/rs_galois_test.c
new file mode 100644
index 0000000..b727755
--- /dev/null
+++ b/test/builtin/rs_vand/rs_galois_test.c
@@ -0,0 +1,64 @@
+/* 
+ * Copyright 2015 Kevin M Greenan
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice, this
+ * list of conditions and the following disclaimer in the documentation and/or
+ * other materials provided with the distribution.  THIS SOFTWARE IS PROVIDED BY
+ * THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * vi: set noai tw=79 ts=4 sw=4:
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <rs_galois.h>
+
+int test_inverse()
+{
+  int *uniq = (int*)malloc(sizeof(int)*FIELD_SIZE);
+  int i = 0;
+
+  memset(uniq, 0, sizeof(int)*FIELD_SIZE);
+
+  rs_galois_init_tables();
+
+  for (i = 1; i < FIELD_SIZE; i++) {
+    if (uniq[i] != 0) {
+      fprintf(stderr, "Duplicate %d: %d , %d \n", i, uniq[i], rs_galois_inverse(i));
+      return 1;
+    }
+    uniq[i] = rs_galois_inverse(i); 
+    int one = rs_galois_mult(rs_galois_inverse(i), i);
+    if (one != 1) {
+      fprintf(stderr, "%d is not the inverse of %d = %d\n", rs_galois_inverse(i), i, one);
+      return 1;
+    }
+  }
+  return 0;
+}
+
+int main(int argc, char **argv)
+{
+  int ret = 0;
+  if (test_inverse() != 0) {
+    fprintf(stderr, "test_inverse() failed\n");
+    ret = 1;
+  }
+  return ret;
+}