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NlProblem

pounce_cli::nl_reader

Struct NlProblem 

Source 
pub struct NlProblem {
Show 17 fields
    pub n: usize,
    pub m: usize,
    pub num_obj: usize,
    pub minimize: bool,
    pub obj_nonlinear: Expr,
    pub obj_linear: Vec<(usize, Number)>,
    pub obj_constant: Number,
    pub con_nonlinear: Vec<Expr>,
    pub con_linear: Vec<Vec<(usize, Number)>>,
    pub x_l: Vec<Number>,
    pub x_u: Vec<Number>,
    pub g_l: Vec<Number>,
    pub g_u: Vec<Number>,
    pub x0: Vec<Number>,
    pub lambda0: Vec<Number>,
    pub suffixes: NlSuffixes,
    pub imported_funcs: Vec<ImportedFunc>,

}
Expand description

Parsed .nl problem in the form needed by NlTnlp.

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§n: usize§m: usize§num_obj: usize§minimize: bool§obj_nonlinear: Expr§obj_linear: Vec<(usize, Number)>§obj_constant: Number§con_nonlinear: Vec<Expr>

Per-constraint nonlinear part (length m).

§con_linear: Vec<Vec<(usize, Number)>>

Per-constraint linear part (length m), each a list of (var, coef).

§x_l: Vec<Number>§x_u: Vec<Number>§g_l: Vec<Number>§g_u: Vec<Number>§x0: Vec<Number>§lambda0: Vec<Number>§suffixes: NlSuffixes

AMPL suffix dictionaries. Variable / constraint / objective suffixes are stored as dense vectors (length n / m / num_obj) with the sparse .nl S-segment entries scattered in, default zero. The integer / real split matches the S-segment header’s kind bit (0x4 ⇒ real, else integer). See https://ampl.com/REFS/hooking2.pdf §6 and the upstream .nl reader in ref/Ipopt/src/Apps/AmplSolver/AmplTNLP.cpp.

§imported_funcs: Vec<ImportedFunc>

AMPL imported (external) functions declared via top-level F segments. Empty unless the .nl file calls compiled-C user functions (typically emitted by IDAES property packages — see issue #49).

Trait Implementations§

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impl Clone for NlProblem

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fn clone(&self) -> NlProblem

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for NlProblem

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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