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// ----------------------------------------------------------------------------
// - Open3D: www.open3d.org -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.open3d.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
#include "open3d/utility/Preprocessor.h"
#include "tests/Tests.h"
namespace open3d {
namespace tests {
TEST(Preprocessor, CONCAT) {
#define PREFIX_MACRO 10
#define SUFFIX_MACRO 4
EXPECT_EQ(OPEN3D_CONCAT(10, 4), 104);
EXPECT_EQ(OPEN3D_CONCAT(10, SUFFIX_MACRO), 104);
EXPECT_EQ(OPEN3D_CONCAT(PREFIX_MACRO, 4), 104);
EXPECT_EQ(OPEN3D_CONCAT(PREFIX_MACRO, SUFFIX_MACRO), 104);
#undef PREFIX_MACRO
#undef SUFFIX_MACRO
}
TEST(Preprocessor, STRINGIFY) {
#define STRING_MACRO test
EXPECT_EQ(std::string(OPEN3D_STRINGIFY(test)), std::string("test"));
EXPECT_EQ(std::string(OPEN3D_STRINGIFY(STRING_MACRO)), std::string("test"));
#undef STRING_MACRO
}
TEST(Preprocessor, NUM_ARGS_Zero) {
// Detecting 0 arguments is not supported and instead returns 1.
EXPECT_EQ(OPEN3D_NUM_ARGS(), 1);
}
TEST(Preprocessor, NUM_ARGS) {
EXPECT_EQ(OPEN3D_NUM_ARGS(x1, x2), 2);
EXPECT_EQ(OPEN3D_NUM_ARGS(x1, x2, x3), 3);
EXPECT_EQ(OPEN3D_NUM_ARGS(x1, x2, x3, x4), 4);
EXPECT_EQ(OPEN3D_NUM_ARGS(x1, x2, x3, x4, x5), 5);
EXPECT_EQ(OPEN3D_NUM_ARGS(x1, x2, x3, x4, x5, x6), 6);
EXPECT_EQ(OPEN3D_NUM_ARGS(x1, x2, x3, x4, x5, x6, x7), 7);
EXPECT_EQ(OPEN3D_NUM_ARGS(x1, x2, x3, x4, x5, x6, x7, x8), 8);
EXPECT_EQ(OPEN3D_NUM_ARGS(x1, x2, x3, x4, x5, x6, x7, x8, x9), 9);
EXPECT_EQ(OPEN3D_NUM_ARGS(x1, x2, x3, x4, x5, x6, x7, x8, x9, x10), 10);
// Detecting >10 Arguments is not supported and results in compiler errors.
// EXPECT_EQ(OPEN3D_NUM_ARGS(x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11),
// 11);
// ...
}
TEST(Preprocessor, OVERLOAD) {
#define FUNC_1(x1) (x1) + 1
#define FUNC_2(x1, x2) (x1) * (x2)
#define FUNC(...) \
OPEN3D_FIX_MSVC_(OPEN3D_OVERLOAD(FUNC_, __VA_ARGS__)(__VA_ARGS__))
EXPECT_EQ(FUNC(0), 0 + 1);
EXPECT_EQ(FUNC(1), 0 + 2);
EXPECT_EQ(FUNC(2), 0 + 3);
EXPECT_EQ(FUNC(0, 1), 0 * 1);
EXPECT_EQ(FUNC(1, 2), 1 * 2);
EXPECT_EQ(FUNC(2, 3), 2 * 3);
#undef FUNC
#undef FUNC_1
#undef FUNC_2
}
} // namespace tests
} // namespace open3d
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