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add IIS-related constants #57

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add IIS-related constants #57

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15 changes: 15 additions & 0 deletions src/lib.rs
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Expand Up @@ -49,3 +49,18 @@ pub const VAR_TYPE_INTEGER: HighsInt = 1;
pub const VAR_TYPE_SEMI_CONTINUOUS: HighsInt = 2;
pub const VAR_TYPE_SEMI_INTEGER: HighsInt = 3;
pub const VAR_TYPE_IMPLICIT_INTEGER: HighsInt = 4;

// These constants mirror the `kIisBoundStatus*` constants in HiGHS' C API.
pub const IIS_BOUND_STATUS_DROPPED: HighsInt = -1;
pub const IIS_BOUND_STATUS_NULL: HighsInt = 0;
pub const IIS_BOUND_STATUS_FREE: HighsInt = 1;
pub const IIS_BOUND_STATUS_LOWER: HighsInt = 2;
pub const IIS_BOUND_STATUS_UPPER: HighsInt = 3;
pub const IIS_BOUND_STATUS_BOXED: HighsInt = 4;

// These constants mirror the `kIisStatus*` constants in HiGHS' C API.
pub const IIS_STATUS_MIN: HighsInt = IIS_STATUS_NOT_IN_CONFLICT;
pub const IIS_STATUS_NOT_IN_CONFLICT: HighsInt = -1;
pub const IIS_STATUS_MAYBE_IN_CONFLICT: HighsInt = 0;
pub const IIS_STATUS_IN_CONFLICT: HighsInt = 1;
pub const IIS_STATUS_MAX: HighsInt = IIS_STATUS_IN_CONFLICT;
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