31 lines · cpp
1//===-- Implementation of strncmp -----------------------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/string/strncmp.h"10 11#include "src/__support/common.h"12#include "src/__support/macros/config.h"13#include "src/__support/macros/null_check.h"14#include "src/string/memory_utils/inline_strcmp.h"15 16#include <stddef.h>17 18namespace LIBC_NAMESPACE_DECL {19 20LLVM_LIBC_FUNCTION(int, strncmp,21 (const char *left, const char *right, size_t n)) {22 if (n) {23 LIBC_CRASH_ON_NULLPTR(left);24 LIBC_CRASH_ON_NULLPTR(right);25 }26 auto comp = [](char l, char r) -> int { return l - r; };27 return inline_strncmp(left, right, n, comp);28}29 30} // namespace LIBC_NAMESPACE_DECL31