calculate elapsed-time

Hi,

If I want to calculate the elapsed-time of some operations, like sorting a array, which header should i use and which function should i use?

probably the first answer will help me to find the second answer myself. Please advise.

joey

What operating system and compiler?

i use Visual C++ on Windows

look into QueryPerformanceCounter()

In C++, to calculate the elapsed time, we can use

CTime startTime = CTime::GetCurrentTime();
// ... perform time-consuming task ...
CTime endTime = CTime::GetCurrentTime();
CTimeSpan elapsedTime = endTime - startTime;

What is the method in C?

read this and this too