Resetting a pulsecount

I understand re the inclusion of the loop and what should be included in there, I simply didn't include it on the forum. My question is, I do not know using what functions, syntax etc I should use to reset the counter.

EDIT:

What about the use of an if function...

if (pulsecounter > max number)
{
pulsecount = 0;
}

EDIT 2:

I have just tried this, the above does not reset pulse count to 0.