timer.cpp File Reference

Small wall-clock timing helpers. More...

import std;

Classes
class	cli::timer_t
	Measures elapsed wall-clock time from construction. More...
class	cli::auto_timer_t
	A timer_t that reports to std::cout when it goes out of scope. More...

Functions
auto	cli::operator<< (std::ostream &in, const timer_t &timer) -> std::ostream &
	Streams a rendered measurement.

Detailed Description

Small wall-clock timing helpers.

cli::timer_t measures elapsed time from its own construction and renders it through a caller-supplied formatting callable. cli::auto_timer_t is the same thing with a destructor that reports automatically, so timing a scope is a single declaration:

{
    const cli::auto_timer_t t{"parse"};
    app.parse(argc, argv);
} // prints "parse: 1.2345 ms"

Function Documentation

operator<<()

auto cli::operator<< ( std::ostream & in, const timer_t & timer ) -> std::ostream &

export

Streams a rendered measurement.

Parameters

in	The stream to write to.
timer	The timer to render.

Returns

in, for chaining.