Function _setCompMatrFromArr

quest/include/matrices.h:943–955

static inline to avoid header-symbol duplication @private

    // static inline to avoid header-symbol duplication
    /// @private
    static inline void _setCompMatrFromArr(CompMatr matr, qcomp arr[matr.numRows][matr.numRows]) {
        _validateParamsToSetCompMatrFromArr(matr);

        // new ptrs array safely fits in stack, since it's sqrt-smaller than user's passed stack array
        qcomp* ptrs[matr.numRows];

        // collect pointers to each row of arr
        for (qindex r=0; r<matr.numRows; r++)
            ptrs[r] = arr[r];

        // array decays to qcomp**, and *FromPtr function re-performs validation (eh)
        setCompMatr(matr, ptrs); // validation gauranteed to pass
    }


    // C then overloads setCompMatr() to call the above VLA when given arrays, using C11 Generics.