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Test: Fix math suite build on Win32. 

The cosine precision test now uses an array of double and the result
gets truncated instead of casted to signed int64.
main
Pierre Wendling 2022-05-16 20:02:24 -04:00 committed by Sam Lantinga
parent adb445eafb
commit b06eda55e9
1 changed files with 10 additions and 8 deletions
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18
test/testautomation_math.c
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@ -1792,6 +1792,8 @@ cos_regularCases(void *args)
/** /**
* \brief Checks cosine precision for the first 10 decimals. * \brief Checks cosine precision for the first 10 decimals.
*
* This function depends on SDL_floor functioning.
*/ */
static int static int
cos_precisionTest(void *args) cos_precisionTest(void *args)
@ -1800,16 +1802,16 @@ cos_precisionTest(void *args)
Uint32 iterations = 20; Uint32 iterations = 20;
double angle = 0.0; double angle = 0.0;
double step = 2.0 * M_PI / iterations; double step = 2.0 * M_PI / iterations;
const Sint64 expected[] = { const double expected[] = {
10000000000, 9510565162, 8090169943, 5877852522, 3090169943, 10000000000.0, 9510565162.0, 8090169943.0, 5877852522.0, 3090169943.0,
0, -3090169943, -5877852522, -8090169943, -9510565162, 0.0, -3090169943.0, -5877852522.0, -8090169943.0, -9510565162.0,
-10000000000, -9510565162, -8090169943, -5877852522, -3090169943, -10000000000.0, -9510565162.0, -8090169943.0, -5877852522.0, -3090169943.0,
0, 3090169943, 5877852522, 8090169943, 9510565162 0.0, 3090169943.0, 5877852522.0, 8090169943.0, 9510565162.0
}; };
for (i = 0; i < iterations; i++, angle += step) { for (i = 0; i < iterations; i++, angle += step) {
Sint64 result = (Sint64) (SDL_cos(angle) * 10000000000); double result = SDL_cos(angle) * 1.0E10;
SDLTest_AssertCheck(result == expected[i], SDLTest_AssertCheck(SDL_trunc(result) == expected[i],
"Cos(%f), expected %lld, got %lld", "Cos(%f), expected %f, got %f",
angle, expected[i], result); angle, expected[i], result);
} }
return TEST_COMPLETED; return TEST_COMPLETED;