Programming Tips - How can I get gcc to make the fastest possible code for

Date: 2015sep2 Product: gcc Keywords: vectorize, slow, fast Q. How can I get gcc to make the fastest possible code for one file without messing with the Makefile? A. You can place optimization directives in your code.
// Request max speed for this file #pragma GCC optimize ("Ofast") mySlowFunction1() { ... } mySlowFunction2() { ... }