llvm-project/libc/fuzzing/math/nextafter_differential_fuzz.cpp
Siva Chandra Reddy 7f7b0dc4e1 [libc] Add implementations of nextafter[f|l] functions.
A differential fuzzer for these functions has also been added.
Along the way, a small correction has been done to the normal/subnormal
limits of x86 long double values.

Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D94109
2021-01-05 22:32:39 -08:00

27 lines
1.0 KiB
C++

//===-- nextafter_differential_fuzz.cpp
//---------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
///
/// Differential fuzz test for llvm-libc nextafter implementation.
///
//===----------------------------------------------------------------------===//
#include "fuzzing/math/TwoInputSingleOutputDiff.h"
#include "src/math/nextafter.h"
#include "src/math/nextafterf.h"
#include "src/math/nextafterl.h"
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
TwoInputSingleOutputDiff<float, float>(&__llvm_libc::nextafterf,
&::nextafterf, data, size);
TwoInputSingleOutputDiff<double, double>(&__llvm_libc::nextafter,
&::nextafter, data, size);
return 0;
}