MPSInput Class Reference

#include <mpsinput.h>

Public Types
Types
enum	Section {   NAME , OBJSEN , OBJNAME , ROWS ,   COLUMNS , RHS , RANGES , BOUNDS ,   ENDATA }
enum	Sense { MAXIMIZE = 1 , MINIMIZE = -1 }
	optimization sense. More...
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
Sense	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 (Sense 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
Sense	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 43 of file mpsinput.h.

Member Enumeration Documentation

anonymous enum

anonymous enum

Enumerator
MAX_LINE_LEN

Definition at line 65 of file mpsinput.h.

Section

enum Section

Enumerator
NAME
OBJSEN
OBJNAME
ROWS
COLUMNS
RHS
RANGES
BOUNDS
ENDATA

Definition at line 52 of file mpsinput.h.

Sense

enum Sense

optimization sense.

Enumerator
MAXIMIZE
MINIMIZE

Definition at line 59 of file mpsinput.h.

Constructor & Destructor Documentation

MPSInput()

MPSInput ( std::istream & p_input )

explicit

Definition at line 119 of file mpsinput.h.

References m_buf, m_f0, m_f1, m_f2, m_f3, m_f4, m_f5, m_has_error, m_ignored, m_input, m_is_integer, m_is_new_format, m_lineno, m_objname, m_objsense, m_probname, m_section, MINIMIZE, MPSInput(), and NAME.

Referenced by MPSInput().

~MPSInput()

virtual ~MPSInput ( )

virtual

Definition at line 137 of file mpsinput.h.

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

Member Function Documentation

entryIgnored()

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

Definition at line 253 of file mpsinput.h.

References m_ignored, m_lineno, m_max_ignore, and SPX_MSG_ERROR.

field0()

const char * field0

(

)

const

Definition at line 159 of file mpsinput.h.

References m_f0.

field1()

const char * field1

(

)

const

Definition at line 164 of file mpsinput.h.

References m_f1.

field2()

const char * field2

(

)

const

Definition at line 169 of file mpsinput.h.

References m_f2.

field3()

const char * field3

(

)

const

Definition at line 174 of file mpsinput.h.

References m_f3.

field4()

const char * field4

(

)

const

Definition at line 179 of file mpsinput.h.

References m_f4.

field5()

const char * field5

(

)

const

Definition at line 184 of file mpsinput.h.

References m_f5.

hasError()

bool hasError

(

)

const

Definition at line 204 of file mpsinput.h.

References m_has_error.

insertName()

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 267 of file mpsinput.cpp.

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

isInteger()

bool isInteger

(

)

const

Definition at line 209 of file mpsinput.h.

References m_is_integer.

lineno()

int lineno

(

)

const

Definition at line 154 of file mpsinput.h.

References m_lineno.

objName()

const char * objName

(

)

const

Definition at line 194 of file mpsinput.h.

References m_objname.

objSense()

Sense objSense

(

)

const

Definition at line 199 of file mpsinput.h.

References m_objsense.

probName()

const char * probName

(

)

const

Definition at line 189 of file mpsinput.h.

References m_probname.

readLine()

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 67 of file mpsinput.cpp.

References BLANK, soplex::clear_from(), SPxOut::debug(), m_buf, m_f0, m_f1, m_f2, m_f3, m_f4, m_f5, m_input, m_is_integer, m_is_new_format, m_lineno, m_section, soplex::patch_field(), and ROWS.

section()

Section section

(

)

const

Definition at line 149 of file mpsinput.h.

References m_section.

setObjName()

void setObjName

(

const char *

p_objname

)

Definition at line 230 of file mpsinput.h.

References m_objname, MAX_LINE_LEN, and soplex::spxSnprintf().

setObjSense()

void setObjSense

(

Sense

sense

)

Definition at line 236 of file mpsinput.h.

References m_objsense.

setProbName()

void setProbName

(

const char *

p_probname

)

Definition at line 224 of file mpsinput.h.

References m_probname, MAX_LINE_LEN, and soplex::spxSnprintf().

setSection()

void setSection

(

Section

p_section

)

Definition at line 219 of file mpsinput.h.

References m_section.

syntaxError()

void syntaxError

(

)

Definition at line 246 of file mpsinput.h.

References ENDATA, m_has_error, m_lineno, m_section, and SPX_MSG_ERROR.

Member Data Documentation

m_buf

char m_buf[MAX_LINE_LEN]

private

the line buffer

Definition at line 85 of file mpsinput.h.

Referenced by MPSInput(), and readLine().

m_f0

const char* m_f0

private

first field in a line

Definition at line 87 of file mpsinput.h.

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

m_f1

const char* m_f1

private

second field in a line

Definition at line 89 of file mpsinput.h.

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

m_f2

const char* m_f2

private

third field in a line

Definition at line 91 of file mpsinput.h.

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

m_f3

const char* m_f3

private

fourth field in a line

Definition at line 93 of file mpsinput.h.

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

m_f4

const char* m_f4

private

fifth field in a line

Definition at line 95 of file mpsinput.h.

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

m_f5

const char* m_f5

private

sixth field in a line

Definition at line 97 of file mpsinput.h.

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

m_has_error

bool m_has_error

private

is set to true upon a syntax error

Definition at line 83 of file mpsinput.h.

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

m_ignored

int m_ignored

private

Number of already ignored entries.

Definition at line 107 of file mpsinput.h.

Referenced by entryIgnored(), and MPSInput().

m_input

std::istream& m_input

private

the input stream from which the file is read

Definition at line 77 of file mpsinput.h.

Referenced by MPSInput(), and readLine().

m_is_integer

bool m_is_integer

private

Definition at line 103 of file mpsinput.h.

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

m_is_new_format

bool m_is_new_format

private

new MPS format?

Definition at line 105 of file mpsinput.h.

Referenced by MPSInput(), and readLine().

m_lineno

int m_lineno

private

line number

Definition at line 79 of file mpsinput.h.

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

m_max_ignore

const int m_max_ignore = 1000

staticprivate

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

Definition at line 109 of file mpsinput.h.

Referenced by entryIgnored().

m_objname

char m_objname[MAX_LINE_LEN]

private

objective name

Definition at line 101 of file mpsinput.h.

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

m_objsense

Sense m_objsense

private

objctive sense (maximization or minimization)

Definition at line 81 of file mpsinput.h.

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

m_probname

char m_probname[MAX_LINE_LEN]

private

problem name

Definition at line 99 of file mpsinput.h.

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

m_section

Section m_section

private

Definition at line 75 of file mpsinput.h.

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