blob: 71fab3d152066f51f9dd39fdb719de6b1144ce96 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
//===-- Allocating string utils ---------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LIBC_SRC_STRING_ALLOCATING_STRING_UTILS_H
#define LIBC_SRC_STRING_ALLOCATING_STRING_UTILS_H
#include "src/__support/CPP/new.h"
#include "src/__support/CPP/optional.h"
#include "src/__support/macros/config.h"
#include "src/string/memory_utils/memcpy_implementations.h" // For string_length
#include "src/string/string_utils.h"
#include <stddef.h> // For size_t
namespace __llvm_libc {
namespace internal {
LIBC_INLINE cpp::optional<char *> strdup(const char *src) {
if (src == nullptr)
return cpp::nullopt;
size_t len = string_length(src) + 1;
AllocChecker ac;
char *newstr = new (ac) char[len];
if (!ac)
return cpp::nullopt;
inline_memcpy(newstr, src, len);
return newstr;
}
} // namespace internal
} // namespace __llvm_libc
#endif
|
