Re: perlxs and gcc error

I don't know whether this is line 19, but in

    value=value+in_matrix[i][a]*in_matrix[j][a];
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you are assuming in_matrix is an array of pointers. However, you have declared in_matrix to be double &in_matrix. Are you sure you don't want double ** in_matrix here?

Abigail

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Re: Re: perlxs and gcc error by Anonymous Monk on Feb 11, 2003 at 12:38 UTC
Yes, that would be what i want to do. However if i change "double &in_matrix" to "double in_matrix", this happens: `$ make /usr/bin/perl -I/usr/lib/perl5/5.6.1/i386-linux -I/usr/lib/perl5/5.6.1 + /usr/lib/perl5/5.6.1/ExtUtils/xsubpp -typemap /usr/lib/perl5/5.6.1/ +ExtUtils/typemap test_c.xs > test_c.xsc && mv test_c.xsc test_c.c Error: 'double ' not in typemap in test_c.xs, line 8 make: *** [test_c.c] Error 1` [download]	[reply] [d/l]
Re: perlxs and gcc error by Abigail-II (Bishop) on Feb 11, 2003 at 13:24 UTC
The typemap is a mapping from C types to Perl internal types. There are many predefined types, but as you can imagine, it would be impossible to list them all. It looks like `double **` isn't in the typemap (which doesn't quite surprise me). So, you have to either extend the typemap, or use the appropriate Perl internal types. I don't know how to extend the typemap. My knowledge of XS is extremely limited. Abigail	[reply] [d/l]