//minimal working example of the file name creation error 
#define M1
#include <default.c>
#include <stdio.h>

//externs & inputs
// already should contain ticks in reversed order
string basePath = "E:FxData_SQ"; //can be anything, does not alter the result as no files are accessed at this stage
int start = 2007;
int end = 2010;

//functions
void createFileNames(int startYear, int endYear, string smbl)
{
	printf("nentered createFileNames");	
	int y1;				//for for() loop
	//int y1 = start; //for while() loop
		
	for(y1 = start; y1 <= end; y1++)
	//while(y1 <= end)
	{
		//string symbol = smbl; //forcing smbl to be stored in another variable does not fix the issue
		printf("nnProcessing year %d...for symbol %s...", y1, smbl);
		
		//test #1
		char inName[256];
		char outName[256];

		sprintf(inName, "%s%s_%d.csv", basePath, smbl, y1);
		sprintf(outName, "%s%s_%d.t6", basePath, smbl, y1);
		file_delete(outName);
		
		//test #2, inName and outName do not seem to obey intialisation, concatenate on themselves)
		/*string inName = "";
		string outName = "";

		inName = strf("%s%s_%d.csv", basePath, smbl, y1);
		outName = strf("%s%s_%d.t6", basePath, smbl, y1);
		file_delete(outName); 
		//end test #1
		*/		
		
		printf("nIn File: %s", inName);
		printf("nOut File: %s", outName);

		//y1 += 1;	//needed for while() loop
		
		Sleep(5000);
	}
}

//main 
function main()
{
	printf("nmain started");
	
	string smbl = strx(Asset, "/", "");
	printf("nMain() smbl = %s", smbl);
	
	#ifdef M1
		{ printf("nM1 defined, creating file names for %s", smbl);
		  createFileNames(start, end, smbl); }
	#endif
	
}