Borland C++ reference
Borland C++ 3.1 › <time.h>

clock

raw OCR

Determines processor time.

Defined in header <time.h>

Syntax

#include <time.h>
clock_t clock(void);

Portability

DOSUNIXWindowsANSI CC++ only
■■■

Remarks

clock can be used to determine the time interval between two events.

To determine the time in seconds, the value returned by clock should be divided by the value of the macro CLK_TCK.

Return value

The clock function returns the processor time elapsed since the beginning of the program invocation. If the processor time is not available, or its value cannot be represented, the function returns the value -1.

See also

Example

#include <time.h>
#include <stdio.h>
#include <dos.h>

int main (void)

   clock_t start,  end;
   start = clock 0 ;
   delay (2000),•
   end = clock 0 ;
   printfC'The time was:  %f\n", (end - start)  / CLK_TCK)
   return 0;

Differences from modern implementations

Nothing recorded yet.

Modern references

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Stable link: /3.1/time.h/clock/ · short form /3.1/clock/