C++ reference: stringbuf::stringbuf

iostream hierarchy
stringbuf:: stringbuf [constructor]

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stringbuf ( ios_base::openmode which = ios_base::in | ios_base::out );
stringbuf ( const string& str, ios_base::openmode which = ios_base::in | ios_base::out );

Construct an object and optionally initialize string.
Initializes the internal openmode field as set by parameter which and initializes its inherited members by calling its parent's constructor streambuf().
If the second prototype is used, the internal character sequence is initialized with a copy of parameter str.

Parameters.

which: Specifies the openmode for the streambuf. If (which & ios_base::in) is true input operations are allowed. If (which & ios_base::out) output operations are allowed.
str: STL string object whose content is used to intialize the internal character sequence.

Return Value.
none

Basic template member declaration ( basic_stringbuf<charT,traits,Allocator> ):

basic_stringbuf ( ios_base::openmode which = ios_base::in | ios_base::out ); basic_stringbuf ( const basic_string<charT,traits,Allocator>& str, ios_base::openmode which = ios_base::in | ios_base::out );