78 lines · cpp
1//===-- Unittests for nanl ------------------------------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8 9#include "hdr/signal_macros.h"10#include "src/__support/FPUtil/FPBits.h"11#include "src/math/nanl.h"12#include "test/UnitTest/FEnvSafeTest.h"13#include "test/UnitTest/FPMatcher.h"14#include "test/UnitTest/Test.h"15 16#if defined(LIBC_TYPES_LONG_DOUBLE_IS_FLOAT64)17#define SELECT_LONG_DOUBLE(val, _, __) val18#elif defined(LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80)19#define SELECT_LONG_DOUBLE(_, val, __) val20#elif defined(LIBC_TYPES_LONG_DOUBLE_IS_FLOAT128)21#define SELECT_LONG_DOUBLE(_, __, val) val22#else23#error "Unknown long double type"24#endif25 26class LlvmLibcNanlTest : public LIBC_NAMESPACE::testing::FEnvSafeTest {27public:28 using StorageType = LIBC_NAMESPACE::fputil::FPBits<long double>::StorageType;29 30 void run_test(const char *input_str, StorageType bits) {31 long double result = LIBC_NAMESPACE::nanl(input_str);32 auto actual_fp = LIBC_NAMESPACE::fputil::FPBits<long double>(result);33 auto expected_fp = LIBC_NAMESPACE::fputil::FPBits<long double>(bits);34 EXPECT_EQ(actual_fp.uintval(), expected_fp.uintval());35 }36};37 38TEST_F(LlvmLibcNanlTest, NCharSeq) {39 run_test("",40 SELECT_LONG_DOUBLE(0x7ff8000000000000, (UInt128(0x7fffc00000) << 40),41 (UInt128(0x7fff800000000000) << 64)));42 run_test("1234", SELECT_LONG_DOUBLE(43 0x7ff80000000004d2,44 (UInt128(0x7fffc00000) << 40) + UInt128(0x4d2),45 (UInt128(0x7fff800000000000) << 64) + UInt128(0x4d2)));46 run_test("0x1234",47 SELECT_LONG_DOUBLE(0x7ff8000000001234,48 (UInt128(0x7fffc00000) << 40) + UInt128(0x1234),49 (UInt128(0x7fff800000000000) << 64) +50 UInt128(0x1234)));51 run_test("1a",52 SELECT_LONG_DOUBLE(0x7ff8000000000000, (UInt128(0x7fffc00000) << 40),53 (UInt128(0x7fff800000000000) << 64)));54 run_test("1234567890qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM_",55 SELECT_LONG_DOUBLE(0x7ff8000000000000, (UInt128(0x7fffc00000) << 40),56 (UInt128(0x7fff800000000000) << 64)));57 run_test("10000000000000000000000000000000000000000000000000",58 SELECT_LONG_DOUBLE(0x7ff8000000000000, (UInt128(0x7fffc00000) << 40),59 (UInt128(0x7fff800000000000) << 64)));60}61 62TEST_F(LlvmLibcNanlTest, RandomString) {63 StorageType expected =64 SELECT_LONG_DOUBLE(0x7ff8000000000000, (UInt128(0x7fffc00000) << 40),65 (UInt128(0x7fff800000000000) << 64));66 67 run_test(" 1234", expected);68 run_test("-1234", expected);69 run_test("asd&f", expected);70 run_test("123 ", expected);71}72 73#if defined(LIBC_ADD_NULL_CHECKS)74TEST_F(LlvmLibcNanlTest, InvalidInput) {75 EXPECT_DEATH([] { LIBC_NAMESPACE::nanl(nullptr); }, WITH_SIGNAL(-1));76}77#endif // LIBC_ADD_NULL_CHECKS78