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

In reply to Re: perlxs and gcc error by Abigail-II
in thread perlxs and gcc error by Anonymous Monk

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