Question

int fCount = 0;
char frameNum[7];
sprintf(frameNum, %06u", fCount);


int fCount = 0;
char frameNum[6];
sprintf(frameNum, %06u", fCount);

Q1. Which is correct, 6 or 7?

Q2. I am using VC6 and the file is sample.cpp.
I think sprintf is C. Is there a better way?
I need the char string right justified and with padded zeros.

Please don’t tell me to use a newer compiler. I need to use VC6 for now.

Answer 1

First one is correct. There is no memory leak, by the way.

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I think sprintf is C. Is there a better way?

Yes. C++ way:

std::stringstream ss;  //#include <sstream>
ss << fCount;
std::string frameNum = ss.str();