MPSInput Class Reference

#include <mpsinput.h>

Public Types
Types
enum	Section {   NAME, OBJSEN, OBJNAME, ROWS,   COLUMNS, RHS, RANGES, BOUNDS,   ENDATA }
enum	{ MAX_LINE_LEN = 256 }

Public Member Functions
Construction / destruction
	MPSInput (std::istream &p_input)
virtual	~MPSInput ()
Access
Section	section () const
int	lineno () const
const char *	field0 () const
const char *	field1 () const
const char *	field2 () const
const char *	field3 () const
const char *	field4 () const
const char *	field5 () const
const char *	probName () const
const char *	objName () const
SPxLP::SPxSense	objSense () const
bool	hasError () const
bool	isInteger () const
Modification
void	setSection (Section p_section)
void	setProbName (const char *p_probname)
void	setObjName (const char *p_objname)
void	setObjSense (SPxLP::SPxSense sense)
Warnings and Errors
void	syntaxError ()
void	entryIgnored (const char *what, const char *what_name, const char *entity, const char *entity_name)
Helpers
bool	readLine ()
	reads an MPS format data line and parse the fields.
void	insertName (const char *name, bool second=false)
	Inserts name as field 1 and shifts all other fields up.

Private data
Section	m_section
std::istream &	m_input
	the input stream from which the file is read
int	m_lineno
	line number
SPxLP::SPxSense	m_objsense
	objctive sense (maximization or minimization)
bool	m_has_error
	is set to true upon a syntax error
char	m_buf [MAX_LINE_LEN]
	the line buffer
const char *	m_f0
	first field in a line
const char *	m_f1
	second field in a line
const char *	m_f2
	third field in a line
const char *	m_f3
	fourth field in a line
const char *	m_f4
	fifth field in a line
const char *	m_f5
	sixth field in a line
char	m_probname [MAX_LINE_LEN]
	problem name
char	m_objname [MAX_LINE_LEN]
	objective name
bool	m_is_integer
bool	m_is_new_format
	new MPS format?
int	m_ignored
	Number of already ignored entries.
static const int	m_max_ignore = 1000
	Maximal number of ignored entries for which a warning will be issued.

Detailed Description

Reads MPS input files. A right-hand side for the objective function is allowed but ignored.

Definition at line 35 of file mpsinput.h.

Member Enumeration Documentation

anonymous enum

Enumerator
MAX_LINE_LEN

Definition at line 48 of file mpsinput.h.

enum Section

Enumerator
NAME
OBJSEN
OBJNAME
ROWS
COLUMNS
RHS
RANGES
BOUNDS
ENDATA

Definition at line 43 of file mpsinput.h.

Constructor & Destructor Documentation

MPSInput ( std::istream &  p_input )

explicit

Definition at line 101 of file mpsinput.h.

References MPSInput::m_buf, MPSInput::m_f0, MPSInput::m_f1, MPSInput::m_f2, MPSInput::m_f3, MPSInput::m_f4, MPSInput::m_f5, MPSInput::m_objname, and MPSInput::m_probname.

virtual ~MPSInput ( )

virtual

Definition at line 119 of file mpsinput.h.

References MPSInput::m_f0, MPSInput::m_f1, MPSInput::m_f2, MPSInput::m_f3, MPSInput::m_f4, and MPSInput::m_f5.

Member Function Documentation

void entryIgnored	(	const char *	what,
		const char *	what_name,
		const char *	entity,
		const char *	entity_name
	)

Definition at line 196 of file mpsinput.h.

References MPSInput::insertName(), MPSInput::m_ignored, MPSInput::m_lineno, MPSInput::m_max_ignore, MSG_WARNING, MPSInput::readLine(), and soplex::spxout.

Referenced by soplex::readBounds(), soplex::readCols(), soplex::readRanges(), and soplex::readRhs().

const char* field0

(

)

const

Definition at line 135 of file mpsinput.h.

References MPSInput::m_f0.

Referenced by SPxBasis::readBasis(), soplex::readBounds(), soplex::readCols(), soplex::readName(), soplex::readObjname(), soplex::readObjsen(), soplex::readRanges(), soplex::readRhs(), and soplex::readRows().

const char* field1

(

)

const

Definition at line 137 of file mpsinput.h.

References MPSInput::m_f1.

Referenced by SPxBasis::readBasis(), soplex::readBounds(), soplex::readCols(), soplex::readName(), soplex::readObjname(), soplex::readObjsen(), soplex::readRanges(), soplex::readRhs(), and soplex::readRows().

const char* field2

(

)

const

Definition at line 139 of file mpsinput.h.

References MPSInput::m_f2.

Referenced by SPxBasis::readBasis(), soplex::readBounds(), soplex::readCols(), soplex::readRanges(), soplex::readRhs(), and soplex::readRows().

const char* field3

(

)

const

Definition at line 141 of file mpsinput.h.

References MPSInput::m_f3.

Referenced by SPxBasis::readBasis(), soplex::readBounds(), soplex::readCols(), soplex::readRanges(), and soplex::readRhs().

const char* field4

(

)

const

Definition at line 143 of file mpsinput.h.

References MPSInput::m_f4.

Referenced by soplex::readBounds(), soplex::readCols(), soplex::readRanges(), and soplex::readRhs().

const char* field5

(

)

const

Definition at line 145 of file mpsinput.h.

References MPSInput::m_f5.

Referenced by soplex::readCols(), soplex::readRanges(), and soplex::readRhs().

bool hasError

(

)

const

Definition at line 153 of file mpsinput.h.

References MPSInput::m_has_error.

Referenced by SPxBasis::readBasis(), and SPxLP::readMPS().

void insertName	(	const char *	name,
		bool	second = false
	)

Inserts name as field 1 and shifts all other fields up.

Insert name as field 1 and shift all other fields up.

Definition at line 242 of file mpsinput.cpp.

References MPSInput::m_f1, MPSInput::m_f2, MPSInput::m_f3, MPSInput::m_f4, and MPSInput::m_f5.

Referenced by MPSInput::entryIgnored(), soplex::readBounds(), soplex::readRanges(), and soplex::readRhs().

bool isInteger

(

)

const

Definition at line 155 of file mpsinput.h.

References MPSInput::m_is_integer.

Referenced by soplex::readCols().

int lineno

(

)

const

Definition at line 133 of file mpsinput.h.

References MPSInput::m_lineno.

const char* objName

(

)

const

Definition at line 149 of file mpsinput.h.

References MPSInput::m_objname.

Referenced by soplex::readCols(), and soplex::readRows().

SPxLP::SPxSense objSense

(

)

const

Definition at line 151 of file mpsinput.h.

References MPSInput::m_objsense.

Referenced by SPxLP::readMPS().

const char* probName

(

)

const

Definition at line 147 of file mpsinput.h.

References MPSInput::m_probname.

Referenced by soplex::readName().

bool readLine

(

)

reads an MPS format data line and parse the fields.

read a MPS format data line and parse the fields.

Definition at line 58 of file mpsinput.cpp.

References BLANK, MPSInput::BOUNDS, soplex::clear_from(), MPSInput::COLUMNS, MPSInput::m_buf, MPSInput::m_f0, MPSInput::m_f1, MPSInput::m_f2, MPSInput::m_f3, MPSInput::m_f4, MPSInput::m_f5, MPSInput::m_input, MPSInput::m_is_integer, MPSInput::m_is_new_format, MPSInput::m_lineno, MPSInput::m_section, MSG_DEBUG, soplex::patch_field(), MPSInput::RANGES, MPSInput::RHS, and soplex::spxout.

Referenced by MPSInput::entryIgnored(), SPxBasis::readBasis(), soplex::readBounds(), soplex::readCols(), soplex::readName(), soplex::readObjname(), soplex::readObjsen(), soplex::readRanges(), soplex::readRhs(), and soplex::readRows().

Section section

(

)

const

Definition at line 131 of file mpsinput.h.

References MPSInput::m_section.

Referenced by SPxBasis::readBasis(), and SPxLP::readMPS().

void setObjName

(

const char *

p_objname

)

Definition at line 173 of file mpsinput.h.

References MPSInput::m_objname, and MPSInput::MAX_LINE_LEN.

Referenced by soplex::readObjname(), and soplex::readRows().

void setObjSense

(

SPxLP::SPxSense

sense

)

Definition at line 179 of file mpsinput.h.

References MPSInput::m_objsense.

Referenced by soplex::readObjsen().

void setProbName

(

const char *

p_probname

)

Definition at line 167 of file mpsinput.h.

References MPSInput::m_probname, and MPSInput::MAX_LINE_LEN.

Referenced by soplex::readName().

void setSection

(

Section

p_section

)

Definition at line 162 of file mpsinput.h.

References MPSInput::m_section.

Referenced by SPxBasis::readBasis(), soplex::readBounds(), soplex::readCols(), soplex::readName(), soplex::readObjname(), soplex::readObjsen(), soplex::readRanges(), soplex::readRhs(), and soplex::readRows().

void syntaxError

(

)

Definition at line 189 of file mpsinput.h.

References MPSInput::ENDATA, MPSInput::m_has_error, MPSInput::m_lineno, MPSInput::m_section, MSG_ERROR, and soplex::spxout.

Referenced by SPxBasis::readBasis(), soplex::readBounds(), soplex::readCols(), SPxLP::readMPS(), soplex::readName(), soplex::readObjname(), soplex::readObjsen(), soplex::readRanges(), soplex::readRhs(), and soplex::readRows().

Member Data Documentation

char m_buf[MAX_LINE_LEN]

private

the line buffer

Definition at line 67 of file mpsinput.h.

Referenced by MPSInput::MPSInput(), and MPSInput::readLine().

const char* m_f0

private

first field in a line

Definition at line 69 of file mpsinput.h.

Referenced by MPSInput::field0(), MPSInput::MPSInput(), MPSInput::readLine(), and MPSInput::~MPSInput().

const char* m_f1

private

second field in a line

Definition at line 71 of file mpsinput.h.

Referenced by MPSInput::field1(), MPSInput::insertName(), MPSInput::MPSInput(), MPSInput::readLine(), and MPSInput::~MPSInput().

const char* m_f2

private

third field in a line

Definition at line 73 of file mpsinput.h.

Referenced by MPSInput::field2(), MPSInput::insertName(), MPSInput::MPSInput(), MPSInput::readLine(), and MPSInput::~MPSInput().

const char* m_f3

private

fourth field in a line

Definition at line 75 of file mpsinput.h.

Referenced by MPSInput::field3(), MPSInput::insertName(), MPSInput::MPSInput(), MPSInput::readLine(), and MPSInput::~MPSInput().

const char* m_f4

private

fifth field in a line

Definition at line 77 of file mpsinput.h.

Referenced by MPSInput::field4(), MPSInput::insertName(), MPSInput::MPSInput(), MPSInput::readLine(), and MPSInput::~MPSInput().

const char* m_f5

private

sixth field in a line

Definition at line 79 of file mpsinput.h.

Referenced by MPSInput::field5(), MPSInput::insertName(), MPSInput::MPSInput(), MPSInput::readLine(), and MPSInput::~MPSInput().

bool m_has_error

private

is set to true upon a syntax error

Definition at line 65 of file mpsinput.h.

Referenced by MPSInput::hasError(), and MPSInput::syntaxError().

int m_ignored

private

Number of already ignored entries.

Definition at line 89 of file mpsinput.h.

Referenced by MPSInput::entryIgnored().

std::istream& m_input

private

the input stream from which the file is read

Definition at line 59 of file mpsinput.h.

Referenced by MPSInput::readLine().

bool m_is_integer

private

Definition at line 85 of file mpsinput.h.

Referenced by MPSInput::isInteger(), and MPSInput::readLine().

bool m_is_new_format

private

new MPS format?

Definition at line 87 of file mpsinput.h.

Referenced by MPSInput::readLine().

int m_lineno

private

line number

Definition at line 61 of file mpsinput.h.

Referenced by MPSInput::entryIgnored(), MPSInput::lineno(), MPSInput::readLine(), and MPSInput::syntaxError().

const int m_max_ignore = 1000

staticprivate

Maximal number of ignored entries for which a warning will be issued.

Definition at line 91 of file mpsinput.h.

Referenced by MPSInput::entryIgnored().

char m_objname[MAX_LINE_LEN]

private

objective name

Definition at line 83 of file mpsinput.h.

Referenced by MPSInput::MPSInput(), MPSInput::objName(), and MPSInput::setObjName().

SPxLP::SPxSense m_objsense

private

objctive sense (maximization or minimization)

Definition at line 63 of file mpsinput.h.

Referenced by MPSInput::objSense(), and MPSInput::setObjSense().

char m_probname[MAX_LINE_LEN]

private

problem name

Definition at line 81 of file mpsinput.h.

Referenced by MPSInput::MPSInput(), MPSInput::probName(), and MPSInput::setProbName().

Section m_section

private

Definition at line 57 of file mpsinput.h.

Referenced by MPSInput::readLine(), MPSInput::section(), MPSInput::setSection(), and MPSInput::syntaxError().