NAME

       al_ftofix - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro.h>

              al_fixed al_ftofix(double x);

DESCRIPTION

       Converts  a floating point value to fixed point.  Unlike al_itofix(3alleg5), this function
       clamps values which could overflow the type conversion, setting Allegro’s errno to  ERANGE
       in the process if this happens.

       Example:

              al_fixed number;

              number = al_itofix(-40000);
              assert(al_fixfloor(number) == -32768);

              number = al_itofix(64000);
              assert(al_fixfloor(number) == 32767);
              assert(!al_get_errno()); /* This will fail. */

RETURN VALUE

       Returns  the value of the floating point value converted to fixed point clamping overflows
       (and setting Allegro’s errno).

SEE ALSO

       al_fixtof(3alleg5), al_itofix(3alleg5), al_fixtoi(3alleg5), al_get_errno(3alleg5)