27 lines · cpp
1//===-- Implementation of strcoll -----------------------------------------===//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/strcoll.h"10 11#include "src/__support/common.h"12#include "src/__support/macros/config.h"13#include "src/__support/macros/null_check.h"14 15namespace LIBC_NAMESPACE_DECL {16 17// TODO: Add support for locales.18LLVM_LIBC_FUNCTION(int, strcoll, (const char *left, const char *right)) {19 LIBC_CRASH_ON_NULLPTR(left);20 LIBC_CRASH_ON_NULLPTR(right);21 for (; *left && *left == *right; ++left, ++right)22 ;23 return static_cast<int>(*left) - static_cast<int>(*right);24}25 26} // namespace LIBC_NAMESPACE_DECL27