Why does GCC allow use of round() in C++ even with the ansi and pedantic flags?

Question

Is there a good reason why this program compiles under GCC even with the -ansi and -pedantic flags?

#include 

int mai         


        

Answer 1

This is a bug. It's been around for a surprisingly long while. Apparently, there has not been enough of a collective desire to fix it. With a new version of C++ just around the corner which will adopt the C99 functions from math.h, it seems unlikely it will ever be fixed.