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Removed reliance on libm/math.h CRT functions.

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This commit is contained in:
Branimir Karadžić
2018-01-27 20:03:19 -08:00
parent 36f9070109
commit 8e0245dc07
7 changed files with 351 additions and 74 deletions
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79
tests/math_test.cpp
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@@ -5,8 +5,9 @@
#include "test.h"
#include <bx/math.h>
#include <bx/file.h>
#include <cmath>
#include <math.h>
#if !BX_COMPILER_MSVC || BX_COMPILER_MSVC >= 1800
TEST_CASE("isFinite, isInfinite, isNan", "")
@@ -34,6 +35,8 @@ TEST_CASE("log2", "")
TEST_CASE("libm", "")
{
bx::WriterI* writer = bx::getNullOut();
REQUIRE(1389.0f == bx::abs(-1389.0f) );
REQUIRE(1389.0f == bx::abs( 1389.0f) );
REQUIRE( 0.0f == bx::abs(-0.0f) );
@@ -52,24 +55,88 @@ TEST_CASE("libm", "")
REQUIRE(bx::equal( 0.89f, bx::fract( 13.89f), 0.000001f) );
REQUIRE(bx::equal(-0.89f, bx::fract(-13.89f), 0.000001f) );
for (float xx = -100.0f; xx < 100.0f; xx += 0.1f)
for (int32_t yy = -10; yy < 10; ++yy)
{
REQUIRE(bx::equal(bx::pow(1.389f, xx), ::pow(1.389f, xx), 0.00001f) );
for (float xx = -100.0f; xx < 100.0f; xx += 0.1f)
{
bx::writePrintf(writer, "ldexp(%f, %d) == %f (expected: %f)\n", xx, yy, bx::ldexp(xx, yy), ::ldexpf(xx, yy) );
REQUIRE(bx::equal(bx::ldexp(xx, yy), ::ldexpf(xx, yy), 0.00001f) );
}
}
for (float xx = -80.0f; xx < 80.0f; xx += 0.1f)
{
bx::writePrintf(writer, "exp(%f) == %f (expected: %f)\n", xx, bx::exp(xx), ::expf(xx) );
REQUIRE(bx::equal(bx::exp(xx), ::expf(xx), 0.00001f) );
}
for (float xx = 0.0f; xx < 100.0f; xx += 0.1f)
{
bx::writePrintf(writer, "sqrt(%f) == %f (expected: %f)\n", xx, bx::sqrt(xx), ::sqrtf(xx) );
REQUIRE(bx::equal(bx::sqrt(xx), ::sqrtf(xx), 0.00001f) );
}
for (float xx = -100.0f; xx < 100.0f; xx += 0.1f)
{
REQUIRE(bx::equal(bx::sin(xx), ::sin(xx), 0.00001f) );
bx::writePrintf(writer, "pow(1.389f, %f) == %f (expected: %f)\n", xx, bx::pow(1.389f, xx), ::powf(1.389f, xx) );
REQUIRE(bx::equal(bx::pow(1.389f, xx), ::powf(1.389f, xx), 0.00001f) );
}
for (float xx = -1.0f; xx < 1.0f; xx += 0.001f)
{
bx::writePrintf(writer, "asin(%f) == %f (expected: %f)\n", xx, bx::asin(xx), ::asinf(xx) );
REQUIRE(bx::equal(bx::asin(xx), ::asinf(xx), 0.0001f) );
}
for (float xx = -100.0f; xx < 100.0f; xx += 0.1f)
{
REQUIRE(bx::equal(bx::cos(xx), ::cos(xx), 0.00001f) );
bx::writePrintf(writer, "sin(%f) == %f (expected: %f)\n", xx, bx::sin(xx), ::sinf(xx) );
REQUIRE(bx::equal(bx::sin(xx), ::sinf(xx), 0.00001f) );
}
for (float xx = -1.0f; xx < 1.0f; xx += 0.1f)
{
bx::writePrintf(writer, "sinh(%f) == %f (expected: %f)\n", xx, bx::sinh(xx), ::sinhf(xx) );
REQUIRE(bx::equal(bx::sinh(xx), ::sinhf(xx), 0.00001f) );
}
for (float xx = -1.0f; xx < 1.0f; xx += 0.001f)
{
bx::writePrintf(writer, "acos(%f) == %f (expected: %f\n)", xx, bx::acos(xx), ::acosf(xx) );
REQUIRE(bx::equal(bx::acos(xx), ::acosf(xx), 0.0001f) );
}
for (float xx = -100.0f; xx < 100.0f; xx += 0.1f)
{
REQUIRE(bx::equal(bx::tan(xx), ::tan(xx), 0.00001f) );
bx::writePrintf(writer, "cos(%f) == %f (expected: %f)\n", xx, bx::cos(xx), ::cosf(xx) );
REQUIRE(bx::equal(bx::cos(xx), ::cosf(xx), 0.00001f) );
}
for (float xx = -100.0f; xx < 100.0f; xx += 0.1f)
{
bx::writePrintf(writer, "tan(%f) == %f (expected: %f)\n", xx, bx::tan(xx), ::tanf(xx) );
REQUIRE(bx::equal(bx::tan(xx), ::tanf(xx), 0.001f) );
}
for (float xx = -1.0f; xx < 1.0f; xx += 0.1f)
{
bx::writePrintf(writer, "tanh(%f) == %f (expected: %f\n", xx, bx::tanh(xx), ::tanhf(xx) );
REQUIRE(bx::equal(bx::tanh(xx), ::tanhf(xx), 0.00001f) );
}
for (float xx = -100.0f; xx < 100.0f; xx += 0.1f)
{
bx::writePrintf(writer, "atan(%f) == %f (expected: %f)\n", xx, bx::atan(xx), ::atanf(xx) );
REQUIRE(bx::equal(bx::atan(xx), ::atanf(xx), 0.00001f) );
}
for (float yy = -100.0f; yy < 100.0f; yy += 0.1f)
{
for (float xx = -100.0f; xx < 100.0f; xx += 0.1f)
{
bx::writePrintf(writer, "atan2(%f, %f) == %f (expected: %f)\n", yy, xx, bx::atan2(yy, xx), ::atan2f(yy, xx) );
REQUIRE(bx::equal(bx::atan2(yy, xx), ::atan2f(yy, xx), 0.00001f) );
}
}
}