Commit c5adab02 authored by Taylor Yu's avatar Taylor Yu
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Make CEIL_DIV() slightly more overflow-safe

parent 489ef6b3
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+3 −3
Original line number Diff line number Diff line
@@ -163,9 +163,9 @@ int64_t clamp_double_to_int64(double number);
void simplify_fraction64(uint64_t *numer, uint64_t *denom);

/* Compute the CEIL of <b>a</b> divided by <b>b</b>, for nonnegative <b>a</b>
 * and positive <b>b</b>.  Works on integer types only. Not defined if a+b can
 * overflow. */
#define CEIL_DIV(a,b) (((a)+(b)-1)/(b))
 * and positive <b>b</b>.  Works on integer types only. Not defined if a+(b-1)
 * can overflow. */
#define CEIL_DIV(a,b) (((a)+((b)-1))/(b))

/* Return <b>v</b> if it's between <b>min</b> and <b>max</b>.  Otherwise
 * return <b>min</b> if <b>v</b> is smaller than <b>min</b>, or <b>max</b> if