bx/tests/macros_test.cpp

/*
 * Copyright 2010-2023 Branimir Karadzic. All rights reserved.
 * License: https://github.com/bkaradzic/bx/blob/master/LICENSE
 */

#include "test.h"
#include <bx/bx.h>
#include <bx/string.h>

BX_STATIC_ASSERT(false
	|| BX_CRT_BIONIC
	|| BX_CRT_GLIBC
	|| BX_CRT_LIBCXX
	|| BX_CRT_MINGW
	|| BX_CRT_MSVC
	|| BX_CRT_NEWLIB
	);

BX_STATIC_ASSERT(1 == BX_VA_ARGS_COUNT(1) );
BX_STATIC_ASSERT(2 == BX_VA_ARGS_COUNT(1, 2) );
BX_STATIC_ASSERT(3 == BX_VA_ARGS_COUNT(1, 2, 3) );
BX_STATIC_ASSERT(4 == BX_VA_ARGS_COUNT(1, 2, 3, 4) );
BX_STATIC_ASSERT(5 == BX_VA_ARGS_COUNT(1, 2, 3, 4, 5) );
BX_STATIC_ASSERT(6 == BX_VA_ARGS_COUNT(1, 2, 3, 4, 5, 6) );

BX_NO_INLINE void unusedFunction()
{
	CHECK(false);
}

TEST(macros)
{
	uint32_t unused0;
	BX_UNUSED(unused0);

	uint32_t unused1;
	BX_UNUSED(unused0, unused1);

	uint32_t unused2;
	BX_UNUSED(unused0, unused1, unused2, unusedFunction() );

	CHECK_EQUAL(1, BX_VA_ARGS_COUNT(1) );
	CHECK_EQUAL(2, BX_VA_ARGS_COUNT(1, 2) );
	CHECK_EQUAL(3, BX_VA_ARGS_COUNT(1, 2, 3) );
	CHECK_EQUAL(4, BX_VA_ARGS_COUNT(1, 2, 3, 4) );
	CHECK_EQUAL(5, BX_VA_ARGS_COUNT(1, 2, 3, 4, 5) );
	CHECK_EQUAL(6, BX_VA_ARGS_COUNT(1, 2, 3, 4, 5, 6) );

	CHECK_EQUAL(0, bx::strCmp(BX_STRINGIZE(TEST 1234 %^&*), "TEST 1234 %^&*") );

	{
		struct PodStruct { int32_t x, y, z; };
		CHECK_EQUAL(0, BX_OFFSETOF(PodStruct, x) );
		CHECK_EQUAL(4, BX_OFFSETOF(PodStruct, y) );
		CHECK_EQUAL(8, BX_OFFSETOF(PodStruct, z) );
	}

	{
		union PodUnion { int32_t x, y, z; };
		CHECK_EQUAL(BX_OFFSETOF(PodUnion, x), BX_OFFSETOF(PodUnion, y) );
		CHECK_EQUAL(BX_OFFSETOF(PodUnion, y), BX_OFFSETOF(PodUnion, z) );
	}

	{
		struct NonPodStruct { NonPodStruct() { } int32_t x, y, z; };
		CHECK_EQUAL(0, BX_OFFSETOF(NonPodStruct, x) );
		CHECK_EQUAL(4, BX_OFFSETOF(NonPodStruct, y) );
		CHECK_EQUAL(8, BX_OFFSETOF(NonPodStruct, z) );
	}

	{
		union NonPodUnion { NonPodUnion() { } int32_t x, y, z; };
		CHECK_EQUAL(BX_OFFSETOF(NonPodUnion, x), BX_OFFSETOF(NonPodUnion, y) );
		CHECK_EQUAL(BX_OFFSETOF(NonPodUnion, y), BX_OFFSETOF(NonPodUnion, z) );
	}
}