llvm/libc/fuzzing/__support/uint_fuzz.cpp

//===-- uint_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
//
//===----------------------------------------------------------------------===//
///
/// Fuzzing test for llvm-libc unsigned integer utilities.
///
//===----------------------------------------------------------------------===//
#include "src/__support/CPP/bit.h"
#include "src/__support/big_int.h"
#include "src/string/memory_utils/inline_memcpy.h"

usingnamespaceLIBC_NAMESPACE;

// Helper function when using gdb / lldb to set a breakpoint and inspect values.
template <typename T> void debug_and_trap(const char *msg, T a, T b) { … }

#define DEBUG_AND_TRAP() …

#define TEST_BINOP(OP) …

#define TEST_SHIFTOP(OP) …

#define TEST_FUNCTION(FUN) …

// Test that basic arithmetic operations of BigInt behave like their scalar
// counterparts.
template <typename T, typename BigInt> void run_tests(T a, T b) { … }

// Reads a T from libfuzzer data.
template <typename T> T read(const uint8_t *data, size_t &remainder) { … }

template <typename T, typename BigInt>
void run_tests(const uint8_t *data, size_t size) { … }

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { … }