-void lmm_shrink(lmm_system_t sys, lmm_constraint_t cnst, lmm_variable_t var)
-{
- auto elem_it = std::find_if(begin(var->cnsts), end(var->cnsts),
- [&cnst](s_lmm_element_t const& x) { return x.constraint == cnst; });
- if (elem_it == end(var->cnsts)) {
- XBT_DEBUG("cnst %p is not found in var %p", cnst, var);
- return;
- }
- s_lmm_element_t& elem = *elem_it;
-
- sys->modified = 1;
-
- XBT_DEBUG("remove elem(value %f, cnst %p, var %p) in var %p", elem.consumption_weight, elem.constraint, elem.variable,
- var);
-
- /* We are going to change the constraint object and the variable object.
- * Propagate this change to other objects. Calling here before removing variable from not active elements
- * (inactive elements are not visited)
- */
- lmm_update_modified_set(sys, cnst);
- //Useful in case var was already removed from the constraint
- lmm_update_modified_set(sys, var->cnsts[0].constraint); // will look up enabled_element_set of this constraint, and
- //then each var in the enabled_element_set, and each var->cnsts[i].
-
- if (xbt_swag_remove(&elem, &(elem.constraint->enabled_element_set)))
- lmm_decrease_concurrency(&elem);
-
- xbt_swag_remove(&elem, &(elem.constraint->active_element_set));
- elem.constraint = nullptr;
- elem.variable = nullptr;
- elem.consumption_weight = 0;
-
- var->cnsts.pop_back();
-
- //No variable in this constraint -> make it inactive
- if (xbt_swag_size(&(cnst->enabled_element_set))+xbt_swag_size(&(cnst->disabled_element_set)) == 0)
- make_constraint_inactive(sys, cnst);
- else {
- //Check maxconcurrency to see if we can enable new variables
- lmm_on_disabled_var(sys, elem.constraint);
- }
-
- lmm_check_concurrency(sys);
-}
-