snix/absl/time/internal/cctz/src/time_zone_fixed.h
Abseil Team bf86cfe165 Export of internal Abseil changes
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20b3acaff75d05315f272747956b01405adccafb by Greg Falcon <gfalcon@google.com>:

Re-import of CCTZ from GitHub, with new ABSL_NAMESPACE_ transform applied.

PiperOrigin-RevId: 285564474

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4d9e3fcabcea33c8b0b69f094ad2eddc0fa19557 by Derek Mauro <dmauro@google.com>:

Moves the disabling of a warning to before the function begins.

MSVC apparently requires this for warnings in the range 4700-4999.
https://docs.microsoft.com/en-us/cpp/preprocessor/warning?redirectedfrom=MSDN&view=vs-2019

PiperOrigin-RevId: 285516232

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4a060cbeda76e89693c50276ae5b62cbf0fff39a by Derek Mauro <dmauro@google.com>:

MSVC: Fixes uniform_real_distribution_test in opt mode

Disables a constant arithmetic overflow warning in a test that tests
the behavior on overflow. This should be tested because a user might
have this warning disabled.

PiperOrigin-RevId: 285452242

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548ab2f4cbe59bd6f6bf493af4f9ea765c4fa949 by Andy Soffer <asoffer@google.com>:

Release absl::bind_front, a C++11-compliant work-alike type for the C++20
std::bind_front.

PiperOrigin-RevId: 285247872
GitOrigin-RevId: 20b3acaff75d05315f272747956b01405adccafb
Change-Id: I00fe45939246cba9bfc7be375d67787d2eb57cd3
2019-12-16 15:25:20 -05:00

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2 KiB
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// Copyright 2016 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_FIXED_H_
#define ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_FIXED_H_
#include <string>
#include "absl/base/config.h"
#include "absl/time/internal/cctz/include/cctz/time_zone.h"
namespace absl {
ABSL_NAMESPACE_BEGIN
namespace time_internal {
namespace cctz {
// Helper functions for dealing with the names and abbreviations
// of time zones that are a fixed offset (seconds east) from UTC.
// FixedOffsetFromName() extracts the offset from a valid fixed-offset
// name, while FixedOffsetToName() and FixedOffsetToAbbr() generate
// the canonical zone name and abbreviation respectively for the given
// offset.
//
// A fixed-offset name looks like "Fixed/UTC<+-><hours>:<mins>:<secs>".
// Its abbreviation is of the form "UTC(<+->H?H(MM(SS)?)?)?" where the
// optional pieces are omitted when their values are zero. (Note that
// the sign is the opposite of that used in a POSIX TZ specification.)
//
// Note: FixedOffsetFromName() fails on syntax errors or when the parsed
// offset exceeds 24 hours. FixedOffsetToName() and FixedOffsetToAbbr()
// both produce "UTC" when the argument offset exceeds 24 hours.
bool FixedOffsetFromName(const std::string& name, seconds* offset);
std::string FixedOffsetToName(const seconds& offset);
std::string FixedOffsetToAbbr(const seconds& offset);
} // namespace cctz
} // namespace time_internal
ABSL_NAMESPACE_END
} // namespace absl
#endif // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_FIXED_H_