In the C Programming Language, the clock function returns the elapsed processor time (as measured in clock ticks) due to the fact the commencing of the program execution.
Syntax
The syntax for the clock characteristic in the C Language is:
clock_t clock(void);Returns
The clock feature returns the elapsed processor time (as measured in clock ticks) considering the starting of the application execution.
If you want to decide the elapsed time in seconds, take the result of the clock function and divide by way of CLOCKS_PER_SEC.
If there is an error (ie: the time is unavailable or can not be represented), the clock function will return -1.
Required Header
In the C Language, the required header for the clock characteristic is:
#include <time.h>Applies To
In the C Language, the clock characteristic can be used in the following versions:
ANSI/ISO 9899-1990
Similar Functions
Other C features that are similar to the clock function:
time function <time.h>
See Also
Other C functions that are noteworthy when dealing with the clock function:
difftime function <time.h>