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//===-- Template to diff single-input-single-output functions ---*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIBC_FUZZING_STDLIB_STRING_PARSER_OUTPUT_DIFF_H
#define LLVM_LIBC_FUZZING_STDLIB_STRING_PARSER_OUTPUT_DIFF_H
#include "fuzzing/math/Compare.h"
#include <stddef.h>
#include <stdint.h>
template <typename T> using StringInputSingleOutputFunc = T (*)(const char *);
template <typename T>
void StringParserOutputDiff(StringInputSingleOutputFunc<T> func1,
StringInputSingleOutputFunc<T> func2,
const uint8_t *data, size_t size) {
if (size < sizeof(T))
return;
const char *x = reinterpret_cast<const char *>(data);
T result1 = func1(x);
T result2 = func2(x);
if (!ValuesEqual(result1, result2))
__builtin_trap();
}
template <typename T>
using StringToNumberFunc = T (*)(const char *, char **, int);
template <typename T>
void StringToNumberOutputDiff(StringToNumberFunc<T> func1,
StringToNumberFunc<T> func2, const uint8_t *data,
size_t size) {
if (size < sizeof(T))
return;
const char *x = reinterpret_cast<const char *>(data + 1);
int base = data[0] % 36;
base = base + ((base == 0) ? 0 : 1);
char *outPtr1 = nullptr;
char *outPtr2 = nullptr;
T result1 = func1(x, &outPtr1, base);
T result2 = func2(x, &outPtr2, base);
if (!(ValuesEqual(result1, result2) && (*outPtr1 == *outPtr2)))
__builtin_trap();
}
#endif // LLVM_LIBC_FUZZING_STDLIB_STRING_PARSER_OUTPUT_DIFF_H
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