blob: a6f7dcb4329303e4db5a3209583d7148aa9793c2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
//===-- Unittests for tan -------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/math/tan.h"
#include "test/UnitTest/FPMatcher.h"
#include "test/UnitTest/Test.h"
#include "utils/MPFRWrapper/MPFRUtils.h"
#include <math.h>
namespace mpfr = LIBC_NAMESPACE::testing::mpfr;
DECLARE_SPECIAL_CONSTANTS(double)
TEST(LlvmLibctanTest, Range) {
static constexpr double _2pi = 6.283185307179586;
constexpr UIntType COUNT = 100'000;
constexpr UIntType STEP = UIntType(-1) / COUNT;
for (UIntType i = 0, v = 0; i <= COUNT; ++i, v += STEP) {
double x = double(FPBits(v));
// TODO: Expand the range of testing after range reduction is implemented.
if (isnan(x) || isinf(x) || x > _2pi || x < -_2pi)
continue;
ASSERT_MPFR_MATCH(mpfr::Operation::Tan, x, LIBC_NAMESPACE::tan(x), 1.0);
}
}
|