1*87c01607SMichael Jones //===-- Template to diff single-input-single-output functions ---*- C++ -*-===// 2*87c01607SMichael Jones // 3*87c01607SMichael Jones // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*87c01607SMichael Jones // See https://llvm.org/LICENSE.txt for license information. 5*87c01607SMichael Jones // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*87c01607SMichael Jones // 7*87c01607SMichael Jones //===----------------------------------------------------------------------===// 8*87c01607SMichael Jones 9*87c01607SMichael Jones #ifndef LLVM_LIBC_FUZZING_STDLIB_STRING_PARSER_OUTPUT_DIFF_H 10*87c01607SMichael Jones #define LLVM_LIBC_FUZZING_STDLIB_STRING_PARSER_OUTPUT_DIFF_H 11*87c01607SMichael Jones 12*87c01607SMichael Jones #include "fuzzing/math/Compare.h" 13*87c01607SMichael Jones 14*87c01607SMichael Jones #include <stddef.h> 15*87c01607SMichael Jones #include <stdint.h> 16*87c01607SMichael Jones 17*87c01607SMichael Jones template <typename T> using StringInputSingleOutputFunc = T (*)(const char *); 18*87c01607SMichael Jones 19*87c01607SMichael Jones template <typename T> StringParserOutputDiff(StringInputSingleOutputFunc<T> func1,StringInputSingleOutputFunc<T> func2,const uint8_t * data,size_t size)20*87c01607SMichael Jonesvoid StringParserOutputDiff(StringInputSingleOutputFunc<T> func1, 21*87c01607SMichael Jones StringInputSingleOutputFunc<T> func2, 22*87c01607SMichael Jones const uint8_t *data, size_t size) { 23*87c01607SMichael Jones if (size < sizeof(T)) 24*87c01607SMichael Jones return; 25*87c01607SMichael Jones 26*87c01607SMichael Jones const char *x = reinterpret_cast<const char *>(data); 27*87c01607SMichael Jones 28*87c01607SMichael Jones T result1 = func1(x); 29*87c01607SMichael Jones T result2 = func2(x); 30*87c01607SMichael Jones 31*87c01607SMichael Jones if (!ValuesEqual(result1, result2)) 32*87c01607SMichael Jones __builtin_trap(); 33*87c01607SMichael Jones } 34*87c01607SMichael Jones 35*87c01607SMichael Jones #endif // LLVM_LIBC_FUZZING_STDLIB_STRING_PARSER_OUTPUT_DIFF_H 36