al_fixsqrt(3)                                                    al_fixsqrt(3)

NAME
       al_fixsqrt - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro.h>

              al_fixed al_fixsqrt(al_fixed x)


DESCRIPTION
       This finds out the non negative square root of x.  If x is negative,
       Allegro's errno is set to EDOM and the function returns zero.

Allegro reference manual                                         al_fixsqrt(3)