I am looking for a way to know how much time will my C program use, preferably before I run it, but if this cannot be known before, then after it has ended.
Is there a way?
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I am looking for a way to know how much time will my C program use, preferably before I run it, but if this cannot be known before, then after it has ended.
Is there a way?
After, yes. On most (all?) UNIX-y systems, you can use this:
Before, no, because the program could depend on external input. The halting problem might also be an obstacle to finding the amount of time a program would take to execute beforehand.