< cpp‎ | chrono‎ | c
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().

[edit] Notes

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

[edit] See also

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