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-exception
6//
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_DECL
31

source code of libc/src/string/strncmp.cpp