Dear Lisette, This is an automatically generated error message coming from the following line of the C code in the GAP kernel:
"List Assignment: <position> must be a positive integer (not a %s)", where %s is substituted by the appropriate word(s), e.g: gap> l:=[1]; [ 1 ] gap> l[0]; List Element: <position> must be positive (not a 0) gap> l[(1,2)]; List Element: <position> must be a positive integer (not a permutation (small)) In such cases it is a common practice to use just "a" as a "default" article. I hope that the meaning of the error message was still clear to you - likely you've tried to access a list element at zero or negative position. Hope this helps, Alexander On 20 Nov 2011, at 16:25, Lisette Brillemans wrote: > Dear forum, > > > English is not my home language so I could be wrong. But today while > programming I made a small mistake about which GAP informed me by: > > List Assignment: <position> must be a positive integer (not a integer) at > > I wonder if that "not a integer" should not be: "not an integer". > Or does "a" mean here, "not just an" or so. > Again: English is not my home language so I could be wrong. > > > With regards, > > > Lisette > > > _______________________________________________ > Forum mailing list > Forum@mail.gap-system.org > http://mail.gap-system.org/mailman/listinfo/forum _______________________________________________ Forum mailing list Forum@mail.gap-system.org http://mail.gap-system.org/mailman/listinfo/forum
