How can I benchmark C code easily?

Question

Is there a simple library to benchmark the time it takes to execute a portion of C code? What I want is something like:

int main(){
    benchmarkBegin(0);
           


        

Answer 1

In POSIX, try getrusage. The relevant argument is RUSAGE_SELF and the relevant fields are ru_utime.tv_sec and ru_utime.tv_usec.