NAME

       ftofix - Converts a floating point value to fixed point. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       fixed ftofix(double x);

DESCRIPTION

       Converts  a  floating  point  value  to fixed point. Unlike itofix(), this function clamps
       values which could overflow the type conversion, setting `errno' 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(3alleg4), itofix(3alleg4),  fixtoi(3alleg4),  exfixed(3alleg4),  exrotscl(3alleg4),
       exspline(3alleg4), exupdate(3alleg4)