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iostream Programming

Visual Studio 2005

This section provides a general description of the iostream classes and then describes output streams, input streams, and input/output streams. The end of the section provides information about advanced iostream programming.

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FAQ

Using an ostringstream object to replace sprintf in legacy code.

The ostringstream class comes handy when you need to replace sprintf. For example, if you have

sprintf(str, "Bakery number: %d", number);

DrawText (hdc, str, -1, &drawRect, DT_SINGLELINE | DT_LEFT | DT_VCENTER);

you can use an ostringstream like this:

#include <sstream>

........

ostringstream s;

s << "Bakery Number: " << Number;

DrawText (hdc, s.str().data(), -1, &drawRect, DT_SINGLELINE | DT_LEFT | DT_VCENTER);

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