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cheap_eqs

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2020-06-17 10:22:57 -07:00
parent c2cead4fb6
commit 525f747e3c
1 changed files with 1 additions and 20 deletions
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21
src/math/lp/lp_bound_propagator.h
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@ -401,6 +401,7 @@ public:
} }
/** /**
The table functionality:
Cheap propagation of equalities x_i = x_j, when Cheap propagation of equalities x_i = x_j, when
x_i = y + k x_i = y + k
x_j = y + k x_j = y + k
@ -662,25 +663,6 @@ public:
if (u) { if (u) {
explore_under(u); explore_under(u);
} }
/*
TRACE("cheap_eq", lp().get_int_solver()->display_row_info(tout, row_index););
// who is it the same column?
if (lp().get_row(row_index)[x_index].var() == j) { // conected to x
vertex* x_v = alloc(vertex, row_index, x_index, v->offset());
v->add_child(x_v);
vertex* y_v = alloc(vertex, row_index, y_index, v->offset() + row_offset);
x_v->add_child(y_v);
SASSERT(tree_is_correct());
explore_under(y_v);
} else { // connected to y
vertex* y_v = alloc(vertex, row_index, y_index, v->offset());
v->add_child(y_v);
vertex* x_v = alloc(vertex, row_index, x_index, v->offset() - row_offset);
y_v->add_child(x_v);
SASSERT(tree_is_correct());
explore_under(x_v);
}
*/
} }
} }
@ -760,6 +742,5 @@ public:
} }
return true; return true;
} }
}; };
} }