1//===-- Unittests for exp10m1f --------------------------------------------===//
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/libc_errno.h"
10#include "src/math/exp10m1f.h"
11#include "test/UnitTest/FPMatcher.h"
12#include "test/UnitTest/Test.h"
13
14using LlvmLibcExp10m1fTest = LIBC_NAMESPACE::testing::FPTest<float>;
15
16TEST_F(LlvmLibcExp10m1fTest, SpecialNumbers) {
17 libc_errno = 0;
18
19 EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::exp10m1f(sNaN), FE_INVALID);
20 EXPECT_MATH_ERRNO(0);
21
22 EXPECT_EQ(FPBits(aNaN).uintval(),
23 FPBits(LIBC_NAMESPACE::exp10m1f(aNaN)).uintval());
24 EXPECT_EQ(FPBits(neg_aNaN).uintval(),
25 FPBits(LIBC_NAMESPACE::exp10m1f(neg_aNaN)).uintval());
26 EXPECT_FP_EQ_ALL_ROUNDING(inf, LIBC_NAMESPACE::exp10m1f(inf));
27 EXPECT_FP_EQ_ALL_ROUNDING(-1.0f, LIBC_NAMESPACE::exp10m1f(neg_inf));
28 EXPECT_FP_EQ_ALL_ROUNDING(zero, LIBC_NAMESPACE::exp10m1f(zero));
29 EXPECT_FP_EQ_ALL_ROUNDING(neg_zero, LIBC_NAMESPACE::exp10m1f(neg_zero));
30
31 EXPECT_FP_EQ_ALL_ROUNDING(9.0f, LIBC_NAMESPACE::exp10m1f(1.0f));
32 EXPECT_FP_EQ_ALL_ROUNDING(99.0f, LIBC_NAMESPACE::exp10m1f(2.0f));
33 EXPECT_FP_EQ_ALL_ROUNDING(999.0f, LIBC_NAMESPACE::exp10m1f(3.0f));
34}
35
36TEST_F(LlvmLibcExp10m1fTest, Overflow) {
37 libc_errno = 0;
38
39 EXPECT_FP_EQ_WITH_EXCEPTION(inf, LIBC_NAMESPACE::exp10m1f(0x1.fffffep+127f),
40 FE_OVERFLOW);
41 EXPECT_MATH_ERRNO(ERANGE);
42
43 EXPECT_FP_EQ_WITH_EXCEPTION(inf, LIBC_NAMESPACE::exp10m1f(0x1.344136p+5),
44 FE_OVERFLOW);
45 EXPECT_MATH_ERRNO(ERANGE);
46
47 EXPECT_FP_EQ_WITH_EXCEPTION(inf, LIBC_NAMESPACE::exp10m1f(0x1.344138p+5),
48 FE_OVERFLOW);
49 EXPECT_MATH_ERRNO(ERANGE);
50}
51
52TEST_F(LlvmLibcExp10m1fTest, Underflow) {
53 libc_errno = 0;
54
55 EXPECT_FP_EQ_WITH_EXCEPTION(-1.0f, LIBC_NAMESPACE::exp10m1f(-max_normal),
56 FE_UNDERFLOW);
57 EXPECT_MATH_ERRNO(ERANGE);
58
59 EXPECT_FP_EQ_WITH_EXCEPTION(-1.0f, LIBC_NAMESPACE::exp10m1f(-0x1.e1a5e4p+2f),
60 FE_UNDERFLOW);
61 EXPECT_MATH_ERRNO(ERANGE);
62}
63

source code of libc/test/src/math/smoke/exp10m1f_test.cpp