| 1 | //===-- Implementation of mktime function ---------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "src/time/mktime.h" |
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| 10 | #include "src/__support/common.h" |
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| 11 | #include "src/__support/macros/config.h" |
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| 12 | #include "src/time/time_constants.h" |
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| 13 | #include "src/time/time_utils.h" |
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| 14 | |
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| 15 | namespace LIBC_NAMESPACE_DECL { |
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| 16 | |
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| 17 | LLVM_LIBC_FUNCTION(time_t, mktime, (struct tm * tm_out)) { |
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| 18 | auto mktime_result = time_utils::mktime_internal(tm_out); |
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| 19 | if (!mktime_result) |
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| 20 | return time_utils::out_of_range(); |
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| 21 | |
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| 22 | time_t seconds = *mktime_result; |
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| 23 | |
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| 24 | // Update the tm structure's year, month, day, etc. from seconds. |
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| 25 | if (time_utils::update_from_seconds(seconds, tm_out) < 0) |
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| 26 | return time_utils::out_of_range(); |
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| 27 | |
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| 28 | return seconds; |
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| 29 | } |
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| 30 | |
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| 31 | } // namespace LIBC_NAMESPACE_DECL |
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| 32 | |
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