libcruft-util/time/parse.hpp

39 lines
1.2 KiB
C++

/*
* 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
*
* http://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.
*
* Copyright 2017 Danny Robson <danny@nerdcruft.net>
*/
#ifndef CRUFT_UTIL_TIME_PARSE_HPP
#define CRUFT_UTIL_TIME_PARSE_HPP
#include "../view.hpp"
#include <chrono>
#include <ratio>
namespace util::time::iso8601 {
/// parse ISO8601 formatted datetime strings
///
/// returns nanoseconds since the UNIX epoch (excluding leap seconds).
///
/// recognises fractional seconds up to the numeric limits of
/// std::chrono::nanoseconds.
///
/// may throw on improperly formatted strings or unrepresentable values.
std::chrono::nanoseconds
parse (util::view<const char*>);
}
#endif