Function scip_sys::SCIPunlockVarCons
source · pub unsafe extern "C" fn SCIPunlockVarCons(
scip: *mut SCIP,
var: *mut SCIP_VAR,
cons: *mut SCIP_CONS,
lockdown: c_uint,
lockup: c_uint
) -> SCIP_RETCODEExpand description
remove locks of type @p locktype of variable with respect to the lock status of the constraint and its negation; this method should be called whenever the lock status of a variable in a constraint changes, for example if the coefficient of the variable changed its sign or if the left or right hand sides of the constraint were added or removed
@return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref SCIP_Retcode “SCIP_RETCODE” for a complete list of error codes.
@pre This method can be called if @p scip is in one of the following stages: - \ref SCIP_STAGE_PROBLEM - \ref SCIP_STAGE_TRANSFORMING - \ref SCIP_STAGE_INITPRESOLVE - \ref SCIP_STAGE_PRESOLVING - \ref SCIP_STAGE_EXITPRESOLVE - \ref SCIP_STAGE_INITSOLVE - \ref SCIP_STAGE_SOLVING - \ref SCIP_STAGE_EXITSOLVE - \ref SCIP_STAGE_FREETRANS