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al_ftofix(3) Library Functions Manual al_ftofix(3) 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(3), 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(3), al_itofix(3), al_fixtoi(3), al_get_errno(3) Allegro reference manual al_ftofix(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO
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