- else if (at == CTAT_ROW && a == PIVOT_AXIS_COLUMN && t->label_axis[PIVOT_AXIS_ROW] == PIVOT_AXIS_COLUMN)
- n_drop = 0;
- else if (at == CTAT_ROW && a == PIVOT_AXIS_COLUMN && t->label_axis[PIVOT_AXIS_COLUMN] == PIVOT_AXIS_ROW)
- {
- drop_inner = true;
- n_drop = 0;
- }
- else if (at == CTAT_ROW && a == PIVOT_AXIS_COLUMN && t->label_axis[PIVOT_AXIS_COLUMN] == PIVOT_AXIS_LAYER)
- {
- drop_inner = true;
- n_drop = 0;
- }
- else if (at == CTAT_COL && a == PIVOT_AXIS_ROW && t->label_axis[PIVOT_AXIS_ROW] == PIVOT_AXIS_COLUMN)
- {
- drop_inner = true;
- n_drop = 0;
- }
- else if (at == CTAT_COL && a == PIVOT_AXIS_ROW && t->label_axis[PIVOT_AXIS_COLUMN] == PIVOT_AXIS_ROW)
- n_drop = 0;
- else if (at == CTAT_COL && a == PIVOT_AXIS_ROW && t->label_axis[PIVOT_AXIS_ROW] == PIVOT_AXIS_LAYER)
- {
- drop_inner = true;
- n_drop = 0;
- }
- else if (at == CTAT_LAYERROW)
- n_drop = a == PIVOT_AXIS_ROW && t->label_axis[PIVOT_AXIS_ROW] == PIVOT_AXIS_COLUMN;
- else if (at == CTAT_LAYERCOL)
- n_drop = a == PIVOT_AXIS_COLUMN && t->label_axis[PIVOT_AXIS_COLUMN] == PIVOT_AXIS_ROW;
- else if (at == CTAT_ROW)
- {
- n_drop = a == PIVOT_AXIS_COLUMN;
- if (a == PIVOT_AXIS_ROW && t->label_axis[PIVOT_AXIS_ROW] == PIVOT_AXIS_COLUMN)
- n_drop++;
- }
- else if (at == CTAT_COL)
+
+ if (at == CTAT_LAYER
+ ? a != PIVOT_AXIS_LAYER && t->label_axis[a] == PIVOT_AXIS_LAYER
+ : at == CTAT_LAYERCOL || at == CTAT_LAYERROW
+ ? a == atb && t->label_axis[a] != a
+ : false)