Added unit test for mem* functions.

tests/crt_test.cpp

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2010-2017 Branimir Karadzic. All rights reserved.
+ * License: https://github.com/bkaradzic/bx#license-bsd-2-clause
+ */
+
+#include "test.h"
+#include <bx/string.h>
+
+TEST_CASE("memSet", "")
+{
+	char temp[] =  { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 };
+
+	REQUIRE(temp == bx::memSet(temp, 0, 0) );
+	REQUIRE(temp[0] == 1);
+
+	REQUIRE(temp == bx::memSet(temp, 0, 5) );
+	REQUIRE(temp[0] == 0);
+	REQUIRE(temp[1] == 0);
+	REQUIRE(temp[2] == 0);
+	REQUIRE(temp[3] == 0);
+	REQUIRE(temp[4] == 0);
+	REQUIRE(temp[5] == 6);
+}
+
+TEST_CASE("memMove", "")
+{
+	char str[] = { 'x', 'x', 'x', 'x', 'a', 'b', 'v', 'g', 'd' };
+
+	REQUIRE(bx::memMove(&str[4], &str[4], 0) );
+	REQUIRE(bx::memMove(&str[4], &str[4], 5) );
+
+	REQUIRE(&str[0] == bx::memMove(str, &str[4], 5) );
+	REQUIRE(      0 == bx::strncmp(str, "abvgd", 5) );
+
+	REQUIRE(&str[4] == bx::memMove(&str[4], str, 5) );
+	REQUIRE( str[4] == 'a' );
+
+	bx::memSet(str, 'x', 4);
+	REQUIRE(0 == bx::strncmp(str, "xxxxabvgd", 9) );
+}