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/*
* Symphony Toolbox
* Functions to add a new row or column
* By Keyur Joshi
*/
#include "symphony.h"
#include "sci_iofunc.hpp"
extern sym_environment* global_sym_env; //defined in globals.cpp
extern "C" {
#include "api_scilab.h"
#include "Scierror.h"
#include "sciprint.h"
#include "BOOL.h"
#include <localization.h>
int sci_sym_addConstr(char *fname){
//error management variable
SciErr sciErr;
int iRet;
//data declarations
int *varAddress,numVars,nonZeros,*itemsPerRow,*colIndex,inputRows,inputCols,colIter;
double inputDouble,*matrix,conRHS,conRHS2,conRange;
char conType,*conTypeInput;
bool isRangedConstr=false;
//ensure that environment is active
if(global_sym_env==NULL){
sciprint("Error: Symphony environment not initialized. Please run 'sym_open()' first.\n");
return 1;
}
//code to check arguments and get them
CheckInputArgument(pvApiCtx,3,4) ;
CheckOutputArgument(pvApiCtx,1,1) ;
//get number of columns
iRet=sym_get_num_cols(global_sym_env,&numVars);
if(iRet==FUNCTION_TERMINATED_ABNORMALLY){
Scierror(999, "An error occured. Has a problem been loaded?\n");
return 1;
}
//get input 1: sparse matrix of variable coefficients in new constraint
sciErr = getVarAddressFromPosition(pvApiCtx, 1, &varAddress);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 1;
}
if ( !isSparseType(pvApiCtx,varAddress) || isVarComplex(pvApiCtx,varAddress) )
{
Scierror(999, "Wrong type for input argument #1: A sparse matrix of doubles is expected.\n");
return 1;
}
sciErr = getSparseMatrix(pvApiCtx,varAddress,&inputRows,&inputCols,&nonZeros,&itemsPerRow,&colIndex,&matrix);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 1;
}
if(inputRows!=1 || inputCols!=numVars)
{
Scierror(999, "Wrong type for input argument #1: Incorrectly sized matrix.\n");
return 1;
}
//scilab has 1-based column indices, convert to 0-based for Symphony
for(colIter=0;colIter<nonZeros;colIter++)
colIndex[colIter]--;
//get argument 2: type of constraint
sciErr = getVarAddressFromPosition(pvApiCtx, 2, &varAddress);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 1;
}
if ( !isStringType(pvApiCtx,varAddress) )
{
Scierror(999, "Wrong type for input argument #2: Either \"L\", \"E\", \"G\", or \"R\" is expected.\n");
return 1;
}
iRet = getAllocatedSingleString(pvApiCtx, varAddress, &conTypeInput);
if(iRet)
{
Scierror(999, "Wrong type for input argument #2: Either \"L\", \"E\", \"G\", or \"R\" is expected.\n");
return 1;
}
switch(conTypeInput[0]){
case 'l':case 'L':
conType='L';
break;
case 'e':case 'E':
conType='E';
break;
case 'g':case 'G':
conType='G';
break;
case 'r':case 'R':
conType='R';
isRangedConstr=true;
break;
default:
Scierror(999, "Wrong type for input argument #2: Either \"L\", \"E\", \"G\", or \"R\" is expected.\n");
return 1;
}
//check number of arguments for specific cases
if(isRangedConstr){
if(nbInputArgument(pvApiCtx)!=4){
Scierror(999, "4 Arguments are expected for ranged constraint.\n");
return 1;
}
}else if(nbInputArgument(pvApiCtx)!=3){
Scierror(999, "3 Arguments are expected for non-ranged constraint.\n");
return 1;
}
//get argument 3: constraint RHS
if(getDoubleFromScilab(3,&conRHS))
return 1;
//get argument 4: constraint range
if(isRangedConstr){
if(getDoubleFromScilab(4,&conRHS2))
return 1;
//conRHS should be the upper bound, and conRange should be positive
if(conRHS>=conRHS2){
conRange=conRHS-conRHS2;
}else{
conRange=conRHS2-conRHS;
conRHS=conRHS2;
}
}else{
//if not ranged constraint, just set it to 0, the value probably does not matter anyway
conRange=0;
}
iRet=sym_add_row(global_sym_env,nonZeros,colIndex,matrix,conType,conRHS,conRange);
if(iRet==FUNCTION_TERMINATED_ABNORMALLY){
Scierror(999, "An error occured.\n");
return 1;
}else{
sciprint("Constraint successfully added.\n");
}
//code to give output
if(return0toScilab())
return 1;
return 0;
}
int sci_sym_addVar(char *fname){
//error management variable
SciErr sciErr;
int iRet;
//data declarations
int *varAddress,numConstr,nonZeros,*itemsPerRow,*colIndex,*rowIndex,inputRows,inputCols,rowIter,arrayIter,isInt;
double inputDouble,*matrix,uBound,lBound,objCoeff;
char *varName,isIntChar;
//ensure that environment is active
if(global_sym_env==NULL){
sciprint("Error: Symphony environment not initialized. Please run 'sym_open()' first.\n");
return 1;
}
//code to check arguments and get them
CheckInputArgument(pvApiCtx,6,6) ;
CheckOutputArgument(pvApiCtx,1,1) ;
//get number of rows
iRet=sym_get_num_rows(global_sym_env,&numConstr);
if(iRet==FUNCTION_TERMINATED_ABNORMALLY){
Scierror(999, "An error occured. Has a problem been loaded?\n");
return 1;
}
//get input 1: sparse matrix of new variable coefficients constraints
sciErr = getVarAddressFromPosition(pvApiCtx, 1, &varAddress);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 1;
}
if ( !isSparseType(pvApiCtx,varAddress) || isVarComplex(pvApiCtx,varAddress) )
{
Scierror(999, "Wrong type for input argument #1: A sparse matrix of doubles is expected.\n");
return 1;
}
sciErr = getSparseMatrix(pvApiCtx,varAddress,&inputRows,&inputCols,&nonZeros,&itemsPerRow,&colIndex,&matrix);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 1;
}
if(inputRows!=numConstr || inputCols!=1)
{
Scierror(999, "Wrong type for input argument #1: Incorrectly sized matrix.\n");
return 1;
}
//get argument 2: lower bound of new variable
if(getDoubleFromScilab(2,&lBound))
return 1;
//get argument 3: upper bound of new variable
if(getDoubleFromScilab(3,&uBound))
return 1;
//get argument 4: coefficient of new variable in objective
if(getDoubleFromScilab(4,&objCoeff))
return 1;
//get argument 5: wether the variable is constrained to be an integer
sciErr = getVarAddressFromPosition(pvApiCtx, 5, &varAddress);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 1;
}
if ( !isBooleanType(pvApiCtx, varAddress) )
{
Scierror(999, "Wrong type for input argument #5: A boolean is expected.\n");
return 1;
}
iRet = getScalarBoolean(pvApiCtx, varAddress, &isInt);
if(iRet)
{
Scierror(999, "Wrong type for input argument #5: A boolean is expected.\n");
return 1;
}
isIntChar=isInt?TRUE:FALSE;
//get argument 6: name of new variable
sciErr = getVarAddressFromPosition(pvApiCtx, 6, &varAddress);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 1;
}
if ( !isStringType(pvApiCtx,varAddress) )
{
Scierror(999, "Wrong type for input argument #6: A string is expected.\n");
return 1;
}
iRet = getAllocatedSingleString(pvApiCtx, varAddress, &varName);
if(iRet)
{
Scierror(999, "Wrong type for input argument #6: A string is expected.\n");
return 1;
}
//convert to form required by Symphony
rowIndex=new int[nonZeros];
for(rowIter=0,arrayIter=0;rowIter<numConstr;rowIter++)
if(itemsPerRow[rowIter])
rowIndex[arrayIter++]=rowIter;
iRet=sym_add_col(global_sym_env,nonZeros,rowIndex,matrix,lBound,uBound,objCoeff,isIntChar,varName);
delete[] rowIndex;
if(iRet==FUNCTION_TERMINATED_ABNORMALLY){
Scierror(999, "An error occured.\n");
return 1;
}else{
sciprint("Variable successfully added.\n");
}
//code to give output
if(return0toScilab())
return 1;
return 0;
}
}
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