1al_fixdiv(3)                                                      al_fixdiv(3)
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NAME

6       al_fixdiv - Allegro 5 API
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SYNOPSIS

9              #include <allegro5/allegro.h>
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11              al_fixed al_fixdiv(al_fixed x, al_fixed y);
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DESCRIPTION

14       A  fixed point value can be divided by an integer with the normal / op‐
15       erator.  To divide two fixed point values, though, you  must  use  this
16       function.   If  a  division by zero occurs, Allegro's errno will be set
17       and the maximum possible value will  be  returned,  but  errno  is  not
18       cleared if the operation is successful.  This means that if you are go‐
19       ing to test for division by zero you should call al_set_errno(0) before
20       calling al_fixdiv(3).
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22       Example:
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24              al_fixed result;
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26              /* This will put 0.06060 `result'. */
27              result = al_fixdiv(al_itofix(2), al_itofix(33));
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29              /* This will put 0 into `result'. */
30              result = al_fixdiv(0, al_itofix(-30));
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32              /* Sets errno and puts -32768 into `result'. */
33              result = al_fixdiv(al_itofix(-100), al_itofix(0));
34              assert(!al_get_errno()); /* This will fail. */
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RETURN VALUE

37       Returns the result of dividing x by y.  If y is zero, returns the maxi‐
38       mum possible fixed point value and sets Allegro's errno to ERANGE.
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SEE ALSO

41       al_fixadd(3), al_fixsub(3), al_fixmul(3), al_get_errno(3).
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45Allegro reference manual                                          al_fixdiv(3)