chrono.hpp File Reference

#include <chrono>
#include <string>
#include <nlohmann/json.hpp>

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Classes
struct	nlohmann::adl_serializer< std::chrono::duration< Rep, Period > >

Functions
std::chrono::nanoseconds	fable::parse_duration_to_nanoseconds (const std::string &s)
template<typename Duration >
Duration	fable::parse_duration (const std::string &s)
template<typename Duration >
std::string	fable::to_string (const Duration &d)
template<>
std::string	fable::to_string (const std::chrono::nanoseconds &d)

Function Documentation

parse_duration()

template<typename Duration >

Duration fable::parse_duration

(

const std::string &

s

)

Convert a string containing a number and a unit to a duration.

The following units are supported:

• ns | nanosecond | nanoseconds
• us | microsecond | microseconds
• ms | millisecond | milliseconds
• s | second | seconds
• min | minute | minutes
• h | hour | hours

Will throw an exception on malformed or out-of-range input:

• std::invalid_argument if unit missing or unknown
• std::out_of_range if sub-nanosecond precision used (e.g. 0.5ns)

Note: This parse function preserves precision even for floating point numbers. For example, 0.1 is not exactly representable as a floating point number, but together with a unit, we can scale it so that it is represented exactly.

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