Provided by: allegro5-doc_5.2.8.0+dfsg-1_all bug

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.