lmm_constraint_t lmm_constraint_new(lmm_system_t sys, void *id,
double bound_value);
+void lmm_constraint_shared(lmm_constraint_t cnst);
+
void lmm_constraint_free(lmm_system_t sys, lmm_constraint_t cnst);
lmm_variable_t lmm_variable_new(lmm_system_t sys, void *id,