Re: Returning (char *) from a function - memory problem

 Javier Albiero <>
Mon, 27 Aug 2007 15:48:15 -0000
On Aug 27, 11:46 am, "Jason" <> wrote:

I don't know if anyone caught my previous post about a project I've
inherited, but I have another question about it.

(Quick summary:
I have old C code, converting to C++. Compiles and runs fine)

My problem is when the application exits, CodeGuard tells me that I have
memory leaks, and points to a function.

char *fooFunc(int Bar)
    char *returnArr = new char[8];
    int stuff;

    // do some stuff with Bar



I see that I am allocating memory, but it's not being freed. The function
is called like so:

fprintf(filePtr,"%s and stuff",fooFunc(myInt));

How do I free (delete) the memory allocated by this? I know I could change
it to

char returnArr[8];

but that would prevent me from learning anything new today.

TIA for everyone's help.

- Jason

Adding to Victor's comments: you can replace sprintf with
stringstream. Something like this:

std::string fooFunc(int Bar) {
        std::stringstream ss;

        ss << std::setw(2) << Bar;

        return ss.str();


Cholo Lennon

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