1 | //===-- Template functions to compare scalar values -------------*- C++ -*-===// |
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 | #ifndef LLVM_LIBC_FUZZING_MATH_COMPARE_H |
10 | #define LLVM_LIBC_FUZZING_MATH_COMPARE_H |
11 | |
12 | #include "src/__support/CPP/type_traits.h" |
13 | #include "src/__support/FPUtil/FPBits.h" |
14 | |
15 | template <typename T> |
16 | LIBC_NAMESPACE::cpp::enable_if_t<LIBC_NAMESPACE::cpp::is_floating_point_v<T>, |
17 | bool> |
18 | ValuesEqual(T x1, T x2) { |
19 | LIBC_NAMESPACE::fputil::FPBits<T> bits1(x1); |
20 | LIBC_NAMESPACE::fputil::FPBits<T> bits2(x2); |
21 | // If either is NaN, we want both to be NaN. |
22 | if (bits1.is_nan() || bits2.is_nan()) |
23 | return bits2.is_nan() && bits2.is_nan(); |
24 | |
25 | // For all other values, we want the values to be bitwise equal. |
26 | return bits1.uintval() == bits2.uintval(); |
27 | } |
28 | |
29 | template <typename T> |
30 | LIBC_NAMESPACE::cpp::enable_if_t<LIBC_NAMESPACE::cpp::is_integral_v<T>, bool> |
31 | ValuesEqual(T x1, T x2) { |
32 | return x1 == x2; |
33 | } |
34 | |
35 | #endif // LLVM_LIBC_FUZZING_MATH_COMPARE_H |
36 | |