Example: Rounds x upward (double)

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public static int main (string[] args) {
	// Outpu: ``ceil (3.9) = 4.0``
	print ("ceil (%.1lf) = %.1lf\n", 3.9, Math.ceil (3.9));

	// Outpu: ``ceil (3.1) = 4.0``
	print ("ceil (%.1lf) = %.1lf\n", 3.1, Math.ceil (3.1));

	return 0;
}

 valac --pkg glib-2.0 -X -lm GLib.Math.ceil.vala

See:

• GLib.Math.ceil

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