CLOCKS_PER_SEC

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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

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