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Merge pull request #18849 from benpicco/core-SIGNOF

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core/macros: fix SIGNOF() macro when applied to size_t
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Marian Buschsieweke 2022-11-09 17:54:00 +01:00 committed by GitHub
commit e402e3f57a
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2 changed files with 4 additions and 2 deletions
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2
core/include/macros/math.h
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@ -31,7 +31,7 @@ extern "C" {
unsigned int: 1, \
unsigned long: 1, \
unsigned long long: 1, \
default: (long long)(a) < 0 ? -1 : 1)
default: ((a) <= 0 ? ((a) == 0 ? 1L : -1L ): 1L))
/**
* @brief Calculates @p a/ @p b with arithmetic rounding
*/

4
tests/unittests/tests-core/tests-core-macros.c
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@ -22,7 +22,9 @@ static void test_math_signof(void)
static void test_math_div_round(void)
{
TEST_ASSERT_EQUAL_INT(3, DIV_ROUND(20, 7));
size_t a = 20;
TEST_ASSERT_EQUAL_INT(3, DIV_ROUND(a, 7));
TEST_ASSERT_EQUAL_INT(3, DIV_ROUND(21, 7));
TEST_ASSERT_EQUAL_INT(3, DIV_ROUND(22, 7));
TEST_ASSERT_EQUAL_INT(0, DIV_ROUND(1, UINT32_MAX));