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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(3alleg),    itofix(3alleg),   fixtoi(3alleg),   exfixed(3alleg),
       exspline(3alleg), exupdate(3alleg)