UserConstraint struct
#include <gtopt/user_constraint.hpp>
Stores a user-defined linear constraint expression.
The expression field contains the full constraint in AMPL-inspired syntax. It is parsed at LP construction time into a ConstraintExpr AST (see constraint_parser.hpp) and then applied to the LinearProblem.
<tt>constraint_type</tt> and dual-value scaling
The optional constraint_type field controls how the dual (shadow price) of the constraint row is scaled when written to the output files. When absent, "power" is assumed. See ConstraintScaleType for the full table.
| Value | Dual output scaling |
|---|---|
"power" (default) | scale_obj / (prob × discount × Δt) |
"energy" | scale_obj / (prob × discount × Δt) |
"raw" / "unitless" | scale_obj / discount |
Public variables
- OptBool active
- Activation status (default: active)
- OptName constraint_type
- OptName description
- Optional free-text description of the constraint.
- Name expression
- Constraint expression in AMPL-inspired syntax.
- Name name
- Human-readable constraint name.
- Uid uid
- Unique identifier.
Variable documentation
OptName gtopt::
Scaling hint: "power" (default), "energy", "raw", or "unitless"