39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
//===-- Allocating string utils ---------------------------------*- C++ -*-===//
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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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#ifndef LIBC_SRC_STRING_ALLOCATING_STRING_UTILS_H
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#define LIBC_SRC_STRING_ALLOCATING_STRING_UTILS_H
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#include "src/__support/CPP/new.h"
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#include "src/__support/CPP/optional.h"
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#include "src/__support/macros/config.h"
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#include "src/string/memory_utils/memcpy_implementations.h" // For string_length
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#include "src/string/string_utils.h"
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#include <stddef.h> // For size_t
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namespace __llvm_libc {
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namespace internal {
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LIBC_INLINE cpp::optional<char *> strdup(const char *src) {
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if (src == nullptr)
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return cpp::nullopt;
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size_t len = string_length(src) + 1;
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AllocChecker ac;
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char *newstr = new (ac) char[len];
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if (!ac)
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return cpp::nullopt;
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inline_memcpy(newstr, src, len);
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return newstr;
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}
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} // namespace internal
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} // namespace __llvm_libc
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#endif
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