1 files changed, 76 insertions, 0 deletions
diff --git a/sci_gateway/cpp/sci_sym_varbounds.cpp b/sci_gateway/cpp/sci_sym_varbounds.cpp
new file mode 100644
index 0000000..e0fa6ab
--- /dev/null
+++ b/sci_gateway/cpp/sci_sym_varbounds.cpp
@@ -0,0 +1,76 @@
+/*
+ * Symphony Toolbox
+ * Functions for setting the upper and lower bounds of the variables
+ * 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>
+#include <string.h>
+
+int sci_sym_setVarBound(char *fname){
+	
+	//error management variable
+	SciErr sciErr;
+	int iRet;
+	
+	//data declarations
+	int *varAddress,varIndex,numVars;
+	double inputDouble,newBound;
+	bool isLower;
+	
+	//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,2,2) ;
+	CheckOutputArgument(pvApiCtx,1,1) ;
+	
+	//get argument 1: index of variable whose bound is to be changed
+	if(getUIntFromScilab(1,&varIndex))
+		return 1;
+	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;
+	}else if(varIndex>=numVars){
+		Scierror(999, "An error occured. Variable index must be a number between 0 and %d.\n",numVars-1);
+		return 1;
+	}
+	
+	//get argument 2: new bound
+	if(getDoubleFromScilab(2,&newBound))
+		return 1;
+	
+	//decide which function to execute
+	isLower=(strcmp(fname,"sym_setVarLower")==0);
+	if(isLower)
+		iRet=sym_set_col_lower(global_sym_env,varIndex,newBound);
+	else
+		iRet=sym_set_col_upper(global_sym_env,varIndex,newBound);
+	if(iRet==FUNCTION_TERMINATED_ABNORMALLY){
+		Scierror(999, "An error occured. Has a problem been loaded?\n");
+		return 1;
+	}else{
+		sciprint("Bound successfully changed.\n");
+	}
+	
+	//code to give output
+	if(return0toScilab())
+		return 1;
+	
+	return 0;
+}
+
+}