1 //===-- Exhaustive test for expm1f-----------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "src/__support/FPUtil/FPBits.h"
10 #include "src/math/expm1f.h"
11 #include "utils/MPFRWrapper/MPFRUtils.h"
12 #include <math.h>
13 
14 using FPBits = __llvm_libc::fputil::FPBits<float>;
15 
16 namespace mpfr = __llvm_libc::testing::mpfr;
17 
18 TEST(LlvmLibcExpm1fExhaustiveTest, AllValues) {
19   uint32_t bits = 0;
20   do {
21     FPBits x(bits);
22     if (!x.is_inf_or_nan() && float(x) < 88.70f) {
23       ASSERT_MPFR_MATCH(mpfr::Operation::Expm1, float(x),
24                         __llvm_libc::expm1f(float(x)), 1.5);
25     }
26   } while (bits++ < 0xffff'ffffU);
27 }
28