CLOCKS_PER_SEC

 

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time_point (C++11)	clock_time_conversion (C++20)	clock_cast (C++20)
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parse (C++20)
C-style date and time

 

C-style date and time utilities

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difftime

time

clock

timespec_get (C++17)

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asctime

ctime

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gmtime

localtime

mktime

Constants

CLOCKS_PER_SEC

Types

tm

time_t

clock_t

timespec (C++17)

 

Defined in header <ctime>
#define CLOCKS_PER_SEC /*implementation defined*/

Expands to an expression (not necessarily a compile-time constant) of type std::clock_t equal to the number of clock ticks per second, as returned by std::clock().

Notes

POSIX defines CLOCKS_PER_SEC as one million, regardless of the actual precision of std::clock().

Example

Run this code

#include <clocale>
#include <ctime>
#include <iostream>
 
int main()
{
    const std::clock_t cps{CLOCKS_PER_SEC};
    std::cout.imbue(std::locale("en_US.utf8"));
    std::cout << cps << '\n';
}

Possible output:

1,000,000

See also

clock	returns raw processor clock time since the program is started (function)
clock_t	process running time (typedef)
C documentation for CLOCKS_PER_SEC