Watch Accuracy ()

Question

I saw a lot of messages about using the clock () function to determine the amount of elapsed time in a program with code that looks something like this:

start_time = clock();

//code to be timed
.
.
.

end_time = clock();
elapsed_time = (end_time - start_time) / CLOCKS_PER_SEC;

The value of CLOCKS_PER_SEC is almost certainly not the actual number of measures per second, so I'm a little afraid of the result. Without worrying about streaming and I / O, is the output of the clock () function scalable in some way so that this divison gives the correct wall clock time?

Answer 1

The answer to your question is yes.

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