| 1 | //===-- Implementation of wcslcpy -----------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "src/wchar/wcslcpy.h" |
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| 10 | |
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| 11 | #include "hdr/types/size_t.h" |
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| 12 | #include "hdr/types/wchar_t.h" |
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| 13 | #include "src/__support/common.h" |
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| 14 | #include "src/__support/macros/config.h" |
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| 15 | #include "src/string/string_utils.h" |
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| 16 | |
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| 17 | namespace LIBC_NAMESPACE_DECL { |
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| 18 | |
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| 19 | LLVM_LIBC_FUNCTION(size_t, wcslcpy, |
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| 20 | (wchar_t *__restrict dst, const wchar_t *__restrict src, |
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| 21 | size_t dstsize)) { |
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| 22 | size_t len = internal::string_length(src); |
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| 23 | if (dstsize == 0) |
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| 24 | return len; |
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| 25 | size_t i = 0; |
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| 26 | for (; i < dstsize - 1 && src[i] != L'\0'; ++i) |
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| 27 | dst[i] = src[i]; |
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| 28 | dst[i] = L'\0'; |
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| 29 | return len; |
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| 30 | } |
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| 31 | |
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| 32 | } // namespace LIBC_NAMESPACE_DECL |
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| 33 | |
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