nan

Description:

public double nan (string tagb)

Returns a representation (determined by tagb) of a quiet double.NAN.

Note:

Remember to link the math library: valac -X -lm ...

If the implementation does not support quiet double.NANs, the function returns zero.

The argument tagb is used in an unspecified manner. On IEEE 754 systems, there are many representations of double.NAN, and tagb selects one. On other systems it may do nothing.

Parameters:

tagb	A representation tag.

Namespace: GLib.Math

Package: glib-2.0