xref: /llvm-project/libc/src/string/strxfrm_l.cpp (revision 5c019bdb7a008cf6465972d4affd8b2802465722)
1*5c019bdbSJoseph Huber //===-- Implementation of strxfrm_l ---------------------------------------===//
2*5c019bdbSJoseph Huber //
3*5c019bdbSJoseph Huber // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4*5c019bdbSJoseph Huber // See https://llvm.org/LICENSE.txt for license information.
5*5c019bdbSJoseph Huber // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6*5c019bdbSJoseph Huber //
7*5c019bdbSJoseph Huber //===----------------------------------------------------------------------===//
8*5c019bdbSJoseph Huber 
9*5c019bdbSJoseph Huber #include "src/string/strxfrm_l.h"
10*5c019bdbSJoseph Huber #include "src/__support/macros/config.h"
11*5c019bdbSJoseph Huber #include "src/string/memory_utils/inline_memcpy.h"
12*5c019bdbSJoseph Huber #include "src/string/string_utils.h"
13*5c019bdbSJoseph Huber 
14*5c019bdbSJoseph Huber #include "src/__support/common.h"
15*5c019bdbSJoseph Huber 
16*5c019bdbSJoseph Huber namespace LIBC_NAMESPACE_DECL {
17*5c019bdbSJoseph Huber 
18*5c019bdbSJoseph Huber // TODO: Add support for locales.
19*5c019bdbSJoseph Huber LLVM_LIBC_FUNCTION(size_t, strxfrm_l,
20*5c019bdbSJoseph Huber                    (char *__restrict dest, const char *__restrict src, size_t n,
21*5c019bdbSJoseph Huber                     locale_t)) {
22*5c019bdbSJoseph Huber   size_t len = internal::string_length(src);
23*5c019bdbSJoseph Huber   if (n > len)
24*5c019bdbSJoseph Huber     inline_memcpy(dest, src, len + 1);
25*5c019bdbSJoseph Huber   return len;
26*5c019bdbSJoseph Huber }
27*5c019bdbSJoseph Huber 
28*5c019bdbSJoseph Huber } // namespace LIBC_NAMESPACE_DECL
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