33 lines · cpp
1//===-- Implementation of wcslcpy -----------------------------------------===//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/wchar/wcslcpy.h"10 11#include "hdr/types/size_t.h"12#include "hdr/types/wchar_t.h"13#include "src/__support/common.h"14#include "src/__support/macros/config.h"15#include "src/string/string_utils.h"16 17namespace LIBC_NAMESPACE_DECL {18 19LLVM_LIBC_FUNCTION(size_t, wcslcpy,20 (wchar_t *__restrict dst, const wchar_t *__restrict src,21 size_t dstsize)) {22 size_t len = internal::string_length(src);23 if (dstsize == 0)24 return len;25 size_t i = 0;26 for (; i < dstsize - 1 && src[i] != L'\0'; ++i)27 dst[i] = src[i];28 dst[i] = L'\0';29 return len;30}31 32} // namespace LIBC_NAMESPACE_DECL33