1 //===-- Unittests for nanf128 ---------------------------------------------===// 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/__support/uint128.h" 13 #include "src/math/nanf128.h" 14 #include "test/UnitTest/FEnvSafeTest.h" 15 #include "test/UnitTest/FPMatcher.h" 16 #include "test/UnitTest/Test.h" 17 18 class LlvmLibcNanf128Test : public LIBC_NAMESPACE::testing::FEnvSafeTest { 19 public: 20 using FPBits128 = LIBC_NAMESPACE::fputil::FPBits<float128>; 21 using StorageType = FPBits128::StorageType; 22 23 const UInt128 QUIET_NAN = FPBits128::quiet_nan().uintval(); 24 const UInt128 ONE = UInt128(1); 25 26 void run_test(const char *input_str, StorageType bits) { 27 float128 result = LIBC_NAMESPACE::nanf128(input_str); 28 auto actual_fp = FPBits128(result); 29 auto expected_fp = FPBits128(bits); 30 EXPECT_EQ(actual_fp.uintval(), expected_fp.uintval()); 31 } 32 }; 33 34 TEST_F(LlvmLibcNanf128Test, NCharSeq) { 35 run_test("", QUIET_NAN); 36 run_test("1234", QUIET_NAN | 1234); 37 run_test("0x1234", QUIET_NAN | 0x1234); 38 run_test("2417851639229258349412352", QUIET_NAN | (ONE << 81)); 39 run_test("0x200000000000000000000", QUIET_NAN | (ONE << 81)); 40 run_test("10384593717069655257060992658440191", 41 QUIET_NAN | FPBits128::SIG_MASK); 42 run_test("0x1ffffffffffffffffffffffffffff", QUIET_NAN | FPBits128::SIG_MASK); 43 run_test("10384593717069655257060992658440192", QUIET_NAN); 44 run_test("0x20000000000000000000000000000", QUIET_NAN); 45 run_test("1a", QUIET_NAN); 46 run_test("10000000000000000000000000000000000000000000000000", QUIET_NAN); 47 } 48 49 TEST_F(LlvmLibcNanf128Test, RandomString) { 50 run_test(" 1234", QUIET_NAN); 51 run_test("-1234", QUIET_NAN); 52 run_test("asd&f", QUIET_NAN); 53 run_test("123 ", QUIET_NAN); 54 run_test("1234567890qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM_", 55 QUIET_NAN); 56 } 57 58 #if defined(LIBC_ADD_NULL_CHECKS) && !defined(LIBC_HAS_SANITIZER) 59 TEST_F(LlvmLibcNanf128Test, InvalidInput) { 60 EXPECT_DEATH([] { LIBC_NAMESPACE::nanf128(nullptr); }); 61 } 62 #endif // LIBC_HAS_ADDRESS_SANITIZER 63