| 1 | //===-- Implementation of ctime_r function --------------------------------===// |
|---|
| 2 | // |
|---|
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
|---|
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
|---|
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
|---|
| 6 | // |
|---|
| 7 | //===----------------------------------------------------------------------===// |
|---|
| 8 | |
|---|
| 9 | #include "src/time/ctime_r.h" |
|---|
| 10 | #include "src/__support/CPP/limits.h" |
|---|
| 11 | #include "src/__support/common.h" |
|---|
| 12 | #include "src/__support/macros/config.h" |
|---|
| 13 | #include "src/time/time_constants.h" |
|---|
| 14 | #include "src/time/time_utils.h" |
|---|
| 15 | |
|---|
| 16 | namespace LIBC_NAMESPACE_DECL { |
|---|
| 17 | |
|---|
| 18 | LLVM_LIBC_FUNCTION(char *, ctime_r, (const time_t *t_ptr, char *buffer)) { |
|---|
| 19 | if (t_ptr == nullptr || buffer == nullptr || |
|---|
| 20 | *t_ptr > cpp::numeric_limits<int32_t>::max()) { |
|---|
| 21 | return nullptr; |
|---|
| 22 | } |
|---|
| 23 | |
|---|
| 24 | return time_utils::asctime(time_utils::localtime(t_ptr), buffer, |
|---|
| 25 | time_constants::ASCTIME_MAX_BYTES); |
|---|
| 26 | } |
|---|
| 27 | |
|---|
| 28 | } // namespace LIBC_NAMESPACE_DECL |
|---|
| 29 | |
|---|
