Struct MpsFile 

pub struct MpsFile {
    pub problem_name: String,
    pub variables: HashMap<String, Variable>,
    pub problem: Problem,
}

A linear programming problem parsed from an MPS file.

Fields

problem_name: String

Value of the NAME field.

variables: HashMap<String, Variable>

A mapping of a variable name to the corresponding Variable.

problem: Problem

A parsed problem.

Implementations

impl MpsFile

pub fn parse<R: BufRead>( input: R, direction: OptimizationDirection, ) -> Result<Self>

Parses a linear programming problem from an MPS file.

This function supports the “free” MPS format, meaning that lines are tokenized based on whitespace, not based on position. Also, because MPS lacks any way to indicate the optimization direction, you have to supply it manually.

Errors

Apart from I/O errors coming from input, this function will signal any syntax error as std::io::Error with the kind set to InvalidData. Unsupported features such as integer variables are reported similarly.

Trait Implementations

impl Clone for MpsFile

fn clone(&self) -> MpsFile

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MpsFile

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

Formats the value using the given formatter.