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ftofix(3) Allegro manual ftofix(3) NAME ftofix - Converts a floating point value to fixed point. Allegro game pro- gramming library. SYNOPSIS #include <allegro.h> fixed ftofix(double x); DESCRIPTION Converts a floating point value to fixed point. Unlike itofix(), this func- tion clamps values which could overflow the type conversion, setting `er- rno' to ERANGE in the process if this happens. Example: fixed number; number = itofix(-40000); ASSERT(fixfloor(number) == -32768); number = itofix(64000); ASSERT(fixfloor(number) == 32767); ASSERT(!errno); /* This will fail. */ RETURN VALUE Returns the value of the floating point value converted to fixed point clamping overflows (and setting `errno'). SEE ALSO fixtof(3), itofix(3), fixtoi(3), exfixed(3), exrotscl(3), exspline(3), ex- update(3) Allegro version 4.4.3 ftofix(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO
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