reader_gms.h File Reference

Detailed Description

GAMS file reader and writer.

Author

Ambros Gleixner

This reader writes a CIP in GAMS format. It can write all kinds of linear and nonlinear constraints (as occurring in MINLPs) and indicator constraints.

If SCIP has been compiled with GAMS=true, it can also read GAMS model instances. This requires a working GAMS system.

Definition in file reader_gms.h.

#include "scip/scip.h"

Go to the source code of this file.

Functions
SCIP_RETCODE	SCIPincludeReaderGms (SCIP *scip)
SCIP_RETCODE	SCIPwriteGms (SCIP *scip, FILE *file, const char *name, SCIP_Bool transformed, SCIP_OBJSENSE objsense, SCIP_Real objscale, SCIP_Real objoffset, SCIP_VAR **vars, int nvars, int nbinvars, int nintvars, int nimplvars, int ncontvars, SCIP_CONS **conss, int nconss, SCIP_RESULT *result)

Function Documentation

SCIP_RETCODE SCIPincludeReaderGms

(

SCIP *

scip

)

includes the gms file reader into SCIP

Parameters

scip	SCIP data structure

SCIP_RETCODE SCIPwriteGms	(	SCIP *	scip,
		FILE *	file,
		const char *	name,
		SCIP_Bool	transformed,
		SCIP_OBJSENSE	objsense,
		SCIP_Real	objscale,
		SCIP_Real	objoffset,
		SCIP_VAR **	vars,
		int	nvars,
		int	nbinvars,
		int	nintvars,
		int	nimplvars,
		int	ncontvars,
		SCIP_CONS **	conss,
		int	nconss,
		SCIP_RESULT *	result
	)

writes problem to file

Parameters

scip	SCIP data structure
file	output file, or NULL if standard output should be used
name	problem name
transformed	TRUE iff problem is the transformed problem
objsense	objective sense
objscale	scalar applied to objective function; external objective value is extobj = objsense * objscale * (intobj + objoffset)
objoffset	objective offset from bound shifting and fixing
vars	array with active variables ordered binary, integer, implicit, continuous
nvars	number of active variables in the problem
nbinvars	number of binary variables
nintvars	number of general integer variables
nimplvars	number of implicit integer variables
ncontvars	number of continuous variables
conss	array with constraints of the problem
nconss	number of constraints in the problem
result	pointer to store the result of the file writing call