spacedPrimesClosest

fnuint spacedPrimesClosest(uint num)

Gets the smallest prime number from a built-in array of primes which is larger than num. This is used within GLib to calculate the optimum size of a #GHashTable.

The built-in array of primes ranges from 11 to 13845163 such that each prime is approximately 1.5-2 times the previous prime.

Parameters

numa #guint

Returns

the smallest prime number from a built-in array of primes

which is larger than num