36 lines
998 B
C++
36 lines
998 B
C++
//===-- Implementation of strndup -----------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "src/string/strndup.h"
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#include "src/string/memory_utils/memcpy_implementations.h"
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#include "src/string/string_utils.h"
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#include "src/__support/CPP/new.h"
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#include "src/__support/common.h"
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#include <stddef.h>
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namespace __llvm_libc {
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LLVM_LIBC_FUNCTION(char *, strndup, (const char *src, size_t size)) {
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if (src == nullptr)
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return nullptr;
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size_t len = internal::string_length(src);
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if (len > size)
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len = size;
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AllocChecker ac;
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char *dest = new (ac) char[len + 1];
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if (!ac)
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return nullptr;
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inline_memcpy(dest, src, len + 1);
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dest[len] = '\0';
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return dest;
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}
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} // namespace __llvm_libc
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