al_itofix man page

al_itofix — Allegro 5 API

Synopsis

#include <allegro5/allegro.h>

al_fixed al_itofix(int x);

Description

Converts an integer to fixed point. This is the same thing as x<<16. Remember that overflows (trying to convert an integer greater than 32767) and underflows (trying to convert an integer lesser than -32768) are not detected even in debug builds! The values simply "wrap around".

Example:

al_fixed number;

/* This conversion is OK. */
number = al_itofix(100);
assert(al_fixtoi(number) == 100);

number = al_itofix(64000);

/* This check will fail in debug builds. */
assert(al_fixtoi(number) == 64000);

Return Value

Returns the value of the integer converted to fixed point ignoring overflows.

See Also

al_fixtoi(3), al_ftofix(3), al_fixtof(3).

Referenced By

al_fixtof(3), al_fixtoi(3), al_ftofix(3).

Allegro reference manual