Function FL_TEST_FILE

tests/fl/stl/cstddef.cpp:6–459

#include "fl/stl/static_assert.h"

FL_TEST_FILE(FL_FILEPATH) {

using namespace fl;

///////////////////////////////////////////////////////////////////////////////
// Test suite for fl/cstddef.h
//
// This file tests the FastLED equivalents of stddef.h types:
// - fl::size_t
// - fl::ptrdiff_t
// - fl::nullptr_t
// - fl::max_align_t
// - FL_OFFSETOF macro
///////////////////////////////////////////////////////////////////////////////

FL_TEST_CASE("fl::size_t basic properties") {
    FL_SUBCASE("size_t is unsigned") {
        fl::size_t zero = 0;
        fl::size_t one = 1;

        FL_CHECK(zero < one);

        // size_t is unsigned, so decrementing 0 wraps around
        fl::size_t wrapped = zero - 1;
        FL_CHECK(wrapped > zero);
    }

    FL_SUBCASE("size_t can hold array sizes") {
        fl::size_t small = 10;
        fl::size_t medium = 1000;
        fl::size_t large = 100000;

        FL_CHECK_EQ(small, 10);
        FL_CHECK_EQ(medium, 1000);
        FL_CHECK_EQ(large, 100000);
    }

    FL_SUBCASE("size_t arithmetic") {
        fl::size_t a = 100;
        fl::size_t b = 50;

        FL_CHECK_EQ(a + b, 150);
        FL_CHECK_EQ(a - b, 50);
        FL_CHECK_EQ(a * 2, 200);
        FL_CHECK_EQ(a / 2, 50);
    }

    FL_SUBCASE("size_t comparison") {
        fl::size_t a = 100;
        fl::size_t b = 200;
        fl::size_t c = 100;

        FL_CHECK(a < b);
        FL_CHECK(b > a);
        FL_CHECK(a == c);
        FL_CHECK(a != b);
        FL_CHECK(a <= c);
        FL_CHECK(a >= c);