nmzFilename -- global variable holding the filename

Description

The user can specify a filename in the global variable nmzFilename to switch the file handling from "delete" to "keep". Note that the files written by Normaliz are not removed automatically if nmzFilename is not the empty string. Use rmNmzFiles to remove these files manually.

 i1 : nmzFilename="polytope"; i2 : setNmzOption("allf",true); i3 : R=ZZ/37[x,y,z]; i4 : hb=intclToricRing {x^2,y^2,z^2}; i5 : extremalRays=readNmzData "ext" o5 = | 0 0 1 | | 0 1 0 | | 1 0 0 | 3 3 o5 : Matrix ZZ <--- ZZ i6 : rmNmzFiles(); i7 : nmzFilename o7 =