#define MatLUCheckShift_inline(info,sctx,row,idiag,newshift) 0;\Collective on Mat
| info | - information about the matrix factorization | |
| sctx | - pointer to the struct LUShift_Ctx | |
| row | - active row index | |
| idiag | - index of diagonals in array aval |
| newshift | - 0: shift is unchanged; 1: shft is updated; -1: zeropivot |