stringstream

I created a stringstream but I don't know how to clear the memory.
Example

Code:

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stringstream sstring;
int a = 12;
int b = 14;

sstring << a;
cout << sstring.str();

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I get 12;

Code:

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sstring << b;
cout << sstring.str();

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I will get 1214. But I want 14. I tried sstring.flush(), but it did not work. Could someone please help out? Thanks in advance.

Code:

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sstring.str("");

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If you're doing it in a loop, just declare the stringstream inside the loop instead.

thanks :)