1al_ftofix(3)               Library Functions Manual               al_ftofix(3)
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NAME

6       al_ftofix
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SYNOPSIS

9              #include <allegro5/allegro.h>
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11              al_fixed al_ftofix(double x);
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DESCRIPTION

14       Converts  a  floating point value to fixed point.  Unlike al_itofix(3),
15       this function clamps values which could overflow the  type  conversion,
16       setting Allegro's errno to ERANGE in the process if this happens.
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18       Example:
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20                  al_fixed number;
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22                  number = al_itofix(-40000);
23                  assert(al_fixfloor(number) == -32768);
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25                  number = al_itofix(64000);
26                  assert(al_fixfloor(number) == 32767);
27                  assert(!al_get_errno()); /* This will fail. */
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RETURN VALUE

30       Returns  the value of the floating point value converted to fixed point
31       clamping overflows (and setting Allegro's errno).
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SEE ALSO

34       al_fixtof(3), al_itofix(3), al_fixtoi(3), al_get_errno(3)
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38Allegro reference manual                                          al_ftofix(3)