Add integer generator

tests/test-mgenint.c

@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2017, Patrick Pelissier
+ * All rights reserved.
+ * 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 REGENTS 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 REGENTS AND 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.
+*/
+#include <stdio.h>
+#include "m-genint.h"
+
+static void test(size_t n)
+{
+  genint_t s;
+  size_t i;
+  
+  genint_init(s, n);
+  for(int k = 0; k < 3; k++) {
+    for(size_t j = 0; j< n ; j++) {
+      i = genint_pop(s);
+      assert (i == j);
+    }
+    i = genint_pop(s);
+    assert (genint_pop(s) == -1UL);
+    
+    for(size_t j = 0; j< n ; j++) {
+      genint_push(s, (j+k) % n );
+    }
+  }
+  
+  genint_clear(s);
+}
+
+int main(void)
+{
+  for(size_t n = 1; n < 256; n++) {
+    test(n);
+  }
+}