1 files changed, 74 insertions, 0 deletions
diff --git a/src/third_party/wiredtiger/test/packing/intpack-test.c b/src/third_party/wiredtiger/test/packing/intpack-test.c
new file mode 100644
index 00000000000..a48f9fc4fe4
--- /dev/null
+++ b/src/third_party/wiredtiger/test/packing/intpack-test.c
@@ -0,0 +1,74 @@
+/*-
+ * Public Domain 2014-2016 MongoDB, Inc.
+ * Public Domain 2008-2014 WiredTiger, Inc.
+ *
+ * This is free and unencumbered software released into the public domain.
+ *
+ * Anyone is free to copy, modify, publish, use, compile, sell, or
+ * distribute this software, either in source code form or as a compiled
+ * binary, for any purpose, commercial or non-commercial, and by any
+ * means.
+ *
+ * In jurisdictions that recognize copyright laws, the author or authors
+ * of this software dedicate any and all copyright interest in the
+ * software to the public domain. We make this dedication for the benefit
+ * of the public at large and to the detriment of our heirs and
+ * successors. We intend this dedication to be an overt act of
+ * relinquishment in perpetuity of all present and future rights to this
+ * software under copyright law.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+
+#include "wt_internal.h"			/* For __wt_XXX */
+
+int
+main(void)
+{
+	const uint8_t *cp;
+	uint8_t buf[10], *p;
+	uint64_t ncalls, r, r2, s;
+	int i;
+
+	ncalls = 0;
+
+	for (i = 0; i < 10000000; i++) {
+		for (s = 0; s < 50; s += 5) {
+			++ncalls;
+			r = 1ULL << s;
+
+#if 1
+			p = buf;
+			assert(__wt_vpack_uint(&p, sizeof(buf), r) == 0);
+			cp = buf;
+			assert(__wt_vunpack_uint(&cp, sizeof(buf), &r2) == 0);
+#else
+			/*
+			 * Note: use memmove for comparison because GCC does
+			 * aggressive optimization of memcpy and it's difficult
+			 * to measure anything.
+			 */
+			p = buf;
+			memmove(p, &r, sizeof(r));
+			cp = buf;
+			memmove(&r2, cp, sizeof(r2));
+#endif
+			if (r != r2) {
+				fprintf(stderr, "mismatch!\n");
+				break;
+			}
+		}
+	}
+
+	printf("Number of calls: %llu\n", (unsigned long long)ncalls);
+
+	return (0);
+}