| //===-- Unittests for str_to_float ----------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "src/__support/FPUtil/FPBits.h" |
| #include "src/__support/str_to_float.h" |
| #include "src/__support/uint128.h" |
| #include "src/errno/libc_errno.h" |
| |
| #include "test/UnitTest/Test.h" |
| |
| namespace LIBC_NAMESPACE { |
| |
| template <typename T> struct LlvmLibcStrToFloatTest : public testing::Test { |
| using StorageType = typename fputil::FPBits<T>::StorageType; |
| |
| void clinger_fast_path_test(const StorageType inputMantissa, |
| const int32_t inputExp10, |
| const StorageType expectedOutputMantissa, |
| const uint32_t expectedOutputExp2) { |
| StorageType actual_output_mantissa = 0; |
| uint32_t actual_output_exp2 = 0; |
| |
| auto result = internal::clinger_fast_path<T>({inputMantissa, inputExp10}); |
| |
| ASSERT_TRUE(result.has_value()); |
| |
| actual_output_mantissa = result->mantissa; |
| actual_output_exp2 = result->exponent; |
| |
| EXPECT_EQ(actual_output_mantissa, expectedOutputMantissa); |
| EXPECT_EQ(actual_output_exp2, expectedOutputExp2); |
| } |
| |
| void clinger_fast_path_fails_test(const StorageType inputMantissa, |
| const int32_t inputExp10) { |
| ASSERT_FALSE(internal::clinger_fast_path<T>({inputMantissa, inputExp10}) |
| .has_value()); |
| } |
| |
| void eisel_lemire_test(const StorageType inputMantissa, |
| const int32_t inputExp10, |
| const StorageType expectedOutputMantissa, |
| const uint32_t expectedOutputExp2) { |
| StorageType actual_output_mantissa = 0; |
| uint32_t actual_output_exp2 = 0; |
| |
| auto result = internal::eisel_lemire<T>({inputMantissa, inputExp10}); |
| |
| ASSERT_TRUE(result.has_value()); |
| |
| actual_output_mantissa = result->mantissa; |
| actual_output_exp2 = result->exponent; |
| |
| EXPECT_EQ(actual_output_mantissa, expectedOutputMantissa); |
| EXPECT_EQ(actual_output_exp2, expectedOutputExp2); |
| } |
| |
| void simple_decimal_conversion_test(const char *__restrict numStart, |
| const StorageType expectedOutputMantissa, |
| const uint32_t expectedOutputExp2, |
| const int expectedErrno = 0) { |
| StorageType actual_output_mantissa = 0; |
| uint32_t actual_output_exp2 = 0; |
| LIBC_NAMESPACE::libc_errno = 0; |
| |
| auto result = internal::simple_decimal_conversion<T>(numStart); |
| |
| actual_output_mantissa = result.num.mantissa; |
| actual_output_exp2 = result.num.exponent; |
| |
| EXPECT_EQ(actual_output_mantissa, expectedOutputMantissa); |
| EXPECT_EQ(actual_output_exp2, expectedOutputExp2); |
| EXPECT_EQ(result.error, expectedErrno); |
| } |
| }; |
| |
| } // namespace LIBC_NAMESPACE |