1 //===-- Unittests for nanf ------------------------------------------------===// 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 "hdr/signal_macros.h" 10 #include "src/__support/FPUtil/FPBits.h" 11 #include "src/__support/macros/sanitizer.h" 12 #include "src/math/nanf.h" 13 #include "test/UnitTest/FEnvSafeTest.h" 14 #include "test/UnitTest/FPMatcher.h" 15 #include "test/UnitTest/Test.h" 16 17 class LlvmLibcNanfTest : public LIBC_NAMESPACE::testing::FEnvSafeTest { 18 public: 19 using StorageType = LIBC_NAMESPACE::fputil::FPBits<float>::StorageType; 20 21 void run_test(const char *input_str, StorageType bits) { 22 float result = LIBC_NAMESPACE::nanf(input_str); 23 auto actual_fp = LIBC_NAMESPACE::fputil::FPBits<float>(result); 24 auto expected_fp = LIBC_NAMESPACE::fputil::FPBits<float>(bits); 25 EXPECT_EQ(actual_fp.uintval(), expected_fp.uintval()); 26 } 27 }; 28 29 TEST_F(LlvmLibcNanfTest, NCharSeq) { 30 run_test("", 0x7fc00000); 31 run_test("1234", 0x7fc004d2); 32 run_test("0x1234", 0x7fc01234); 33 run_test("1a", 0x7fc00000); 34 run_test("1234567890qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM_", 35 0x7fc00000); 36 run_test("10000000000000000000000000000000000000000000000000", 0x7fc00000); 37 } 38 39 TEST_F(LlvmLibcNanfTest, RandomString) { 40 run_test(" 1234", 0x7fc00000); 41 run_test("-1234", 0x7fc00000); 42 run_test("asd&f", 0x7fc00000); 43 run_test("123 ", 0x7fc00000); 44 } 45 46 #if defined(LIBC_ADD_NULL_CHECKS) && !defined(LIBC_HAS_SANITIZER) 47 TEST_F(LlvmLibcNanfTest, InvalidInput) { 48 EXPECT_DEATH([] { LIBC_NAMESPACE::nanf(nullptr); }); 49 } 50 #endif // LIBC_HAS_ADDRESS_SANITIZER 51