[Octave-bug-tracker] [bug #52365] Octave crashes when solving a sparse system of linear equations (U = K \ R)

[Marco Caliari]

Follow-up Comment #5, bug #52365 (project octave):

The mex interface of suitesparse works in matlab for the given example. So, it
seems to me that the problem is in the call. Line 88 of cholmod_spsolve
(responsable of the error message) is


RETURN_IF_XTYPE_INVALID (B, CHOLMOD_REAL, CHOLMOD_ZOMPLEX, NULL) ;


and


#define RETURN_IF_XTYPE_INVALID(A,xtype1,xtype2,result) \
{ \
    if ((A)->xtype < (xtype1) || (A)->xtype > (xtype2) || \
        ((A)->xtype != CHOLMOD_PATTERN && ((A)->x) == NULL) || \
        ((A)->xtype == CHOLMOD_ZOMPLEX && ((A)->z) == NULL)) \
    { \
        if (Common->status != CHOLMOD_OUT_OF_MEMORY) \
        { \
            ERROR (CHOLMOD_INVALID, "invalid xtype") ; \
        } \
        return (result) ; \
    } \
}


What is B->x = b.data () when b is a sparse zeros matrix?

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