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@@ -163,9 +163,9 @@ int64_t clamp_double_to_int64(double number);
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void simplify_fraction64(uint64_t *numer, uint64_t *denom);
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/* Compute the CEIL of <b>a</b> divided by <b>b</b>, for nonnegative <b>a</b>
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- * and positive <b>b</b>. Works on integer types only. Not defined if a+b can
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- * overflow. */
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-#define CEIL_DIV(a,b) (((a)+(b)-1)/(b))
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+ * and positive <b>b</b>. Works on integer types only. Not defined if a+(b-1)
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+ * can overflow. */
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+#define CEIL_DIV(a,b) (((a)+((b)-1))/(b))
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/* Return <b>v</b> if it's between <b>min</b> and <b>max</b>. Otherwise
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* return <b>min</b> if <b>v</b> is smaller than <b>min</b>, or <b>max</b> if
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