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Returns the pointer to the beginning of the buffer, after freezing it. Effectively calls rdbuf()->str().
Notes
After a call to str(), dynamic streams become frozen. A call to freeze(false) is required before exiting the scope in which this strstream object was created. otherwise the destructor will leak memory. Also, additional output to a frozen stream may be truncated once it reaches the end of the allocated buffer.
Parameters
(none).
Return value
Pointer to the beginning of the buffer in the associated std::strsteambuf or NULL if no buffer is available.
Example
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | #include <strstream>#include <iostream> int main(){ std::strstream dyn; // dynamically-allocated output buffer dyn << "Test: " << 1.23; std::cout << "The output stream holds \"" << dyn.str() << "\"\n"; dyn << "Test: " << 1.23; std::cout << "The output stream holds \"" << dyn.str() << "\"\n"; // the stream is now frozen due to str() dyn << " More text"; std::cout << "The output stream holds \"" << dyn.str() << "\"\n"; dyn.freeze(false);} |
Possible output:
1 2 | The stream holds "Test: 1.23"The stream holds "Test: 1.23 More " |
See also
| marks the buffer frozen and returns the beginning pointer of the input sequence (public member function of std::strstreambuf) |
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