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C++ sstream stringstream Class

❮ sstream Library


Example

Write three words to a stringstream, and read them back one by one:

stringstream ss;
string car;

ss << "Volvo BMW Ford";

while (ss >> car) {
  cout << car << "\n";
}

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Definition and Usage

A stringstream is a stream (a flow of data) that keeps its data in a string. You write to it with << and read from it with >>, just like with cout and cin.

When you read with >>, you get one word at a time, and the spaces between the words are skipped. This is often used to split a string into words.

The stringstream class is defined in the <sstream> header file.

Tip: If you only need to read from a string, use istringstream. If you only need to write to a string, use ostringstream.


Syntax

stringstream name;
stringstream name(text);

Parameter Values

Parameter Description
text Optional. A string with the start content of the stream.

Technical Details

Returns: A stringstream object. Write to it with <<, read from it with >>, and use str() to get the content as a string.

Related Pages

Read more about strings in our Strings Tutorial.


❮ sstream Library

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