Thread: FileName

Using MS Visual Studio C++

I am using a function that I wrote which will create a string. The string will have the date & time which is preceeded by a letter that is a function arg to identify the output file type. This string is used to make the output file for the program. However, when I use this function to output two different files, the underscore is used in the first file, but on the second use, the underscore turns into a 0 (zero). This happens when I change the underscore to a random ascii character. Please view the code. I'd like to know how I can use the underscore in both filenames that are created consecutively.

I'm guessing that he is having some trouble with this function.

Code:

char *OutNameTime(char *cLetter)	
{
	char *cTimeFile;

	struct tm *newtime;
    time_t long_time;
    time(&long_time);						// Get time as long integer. 
    newtime = localtime(&long_time);		// Convert to local time. 
	char *chTime = asctime(newtime);
	char cFileStr[17];
	
	//	This is for the year
	cFileStr[0] = chTime[20];
	cFileStr[1] = chTime[21];
	cFileStr[2] = chTime[22];
	cFileStr[3] = chTime[23];
	
	//	This is for the month
	cFileStr[4] = chTime[4];
	cFileStr[5] = chTime[5];
	cFileStr[6] = chTime[6];
	
	//	This is for the day
	cFileStr[7] = chTime[8];
	cFileStr[8] = chTime[9];

	char *cUnderScore = "_";
	cFileStr[9] = *cUnderScore;
	
	//	This is for the time
	cFileStr[10] = chTime[11];
	cFileStr[11] = chTime[12];
	cFileStr[12] = chTime[14];
	cFileStr[13] = chTime[15];
	cFileStr[14] = chTime[17];
	cFileStr[15] = chTime[18];

	char *cPath = "C:\\TrackerFiles/Tracker2File/";
	cTimeFile = cPath;
	cTimeFile[29] = *cLetter;
	cTimeFile[30] = cFileStr[0];
	cTimeFile[31] = cFileStr[1];
	cTimeFile[32] = cFileStr[2];
	cTimeFile[33] = cFileStr[3];
	cTimeFile[34] = cFileStr[4];
	cTimeFile[35] = cFileStr[5];
	cTimeFile[36] = cFileStr[6];
	cTimeFile[37] = cFileStr[7];
	cTimeFile[38] = cFileStr[8];
	cTimeFile[39] =	cFileStr[9];
	cTimeFile[40] = cFileStr[10];
	cTimeFile[41] = cFileStr[11];
	cTimeFile[42] = cFileStr[12];
	cTimeFile[43] = cFileStr[13];
	cTimeFile[44] = cFileStr[14];
	cTimeFile[45] = cFileStr[15];
	cTimeFile[46] = NULL;

	return(cTimeFile);
}