std::basic_ostringstream
From cppreference.com
Defined in header <sstream>
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template< class CharT, |
(until C++11) | |
template< class CharT, |
(since C++11) | |
The class template basic_ostringstream implements output operations on memory (std::basic_string) based streams. It essentially wraps a raw string device implementation (basic_stringbuf) into a higher-level interface (basic_ostream). The complete interface to unique basic_stringbuf members is provided.
Two specializations for common character types are also defined:
Defined in header <sstream>
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Type | Definition |
ostringstream | basic_ostringstream<char> |
wostringstream | basic_ostringstream<wchar_t> |
Contents |
[edit] Member types
Member type | Definition |
char_type | CharT |
traits_type | Traits |
int_type | Traits::int_type |
pos_type | Traits::pos_type |
off_type | Traits::off_type |
allocator_type | Allocator (since C++11) |
[edit] Member functions
constructs the string stream (public member function) | |
(C++11) |
moves the string stream (public member function) |
(C++11) |
swaps two string streams (public member function) |
returns the underlying raw string device object (public member function) | |
String operations | |
gets or sets the contents of underlying string device object (public member function) |
Inherited from std::basic_ostream
Member functions
Formatted input | |
inserts formatted data (public member function of std::basic_ostream) | |
Unformatted input | |
inserts a character (public member function of std::basic_ostream) | |
inserts blocks of characters (public member function of std::basic_ostream) | |
Positioning | |
returns the output position indicator (public member function of std::basic_ostream) | |
sets the output position indicator (public member function of std::basic_ostream) | |
Miscellaneous | |
synchronizes with the underlying storage device (public member function of std::basic_ostream) |
Member classes
implements basic logic for preparation of the stream for output operations (public member class of std::basic_ostream) |
Inherited from std::basic_ios
Member types
Member type | Definition |
char_type | CharT |
traits_type | Traits |
int_type | Traits::int_type |
pos_type | Traits::pos_type |
off_type | Traits::off_type |
State functions | |
checks if no error has occurred i.e. I/O operations are available (public member function of std::basic_ios) | |
checks if end-of-file has been reached (public member function of std::basic_ios) | |
checks if a recoverable error has occurred (public member function of std::basic_ios) | |
checks if a non-recoverable error has occurred (public member function of std::basic_ios) | |
checks if an error has occurred (synonym of fail()) (public member function of std::basic_ios) | |
(until C++11) (since C++11) |
checks if no error has occurred (synonym of !fail()) (public member function of std::basic_ios) |
returns state flags (public member function of std::basic_ios) | |
sets state flags (public member function of std::basic_ios) | |
clears error and eof flags (public member function of std::basic_ios) | |
Formatting | |
copies formatting information (public member function of std::basic_ios) | |
manages the fill character (public member function of std::basic_ios) | |
Miscellaneous | |
manages exception mask (public member function of std::basic_ios) | |
sets the locale (public member function of std::basic_ios) | |
manages associated stream buffer (public member function of std::basic_ios) | |
manages tied stream (public member function of std::basic_ios) | |
narrows characters (public member function of std::basic_ios) | |
widens characters (public member function of std::basic_ios) |
Inherited from std::ios_base
Member functions
Formatting | |
manages format flags (public member function of std::ios_base) | |
sets specific format flag (public member function of std::ios_base) | |
clears specific format flag (public member function of std::ios_base) | |
manages decimal precision of floating point operations (public member function of std::ios_base) | |
manages field width (public member function of std::ios_base) | |
Locales | |
sets locale (public member function of std::ios_base) | |
returns current locale (public member function of std::ios_base) | |
Internal extensible array | |
[static] |
returns a program-wide unique integer that is safe to use as index to pword() and iword() (public static member function of std::ios_base) |
resizes the private storage if necessary and access to the long element at the given index (public member function of std::ios_base) | |
resizes the private storage if necessary and access to the void* element at the given index (public member function of std::ios_base) | |
Miscellaneous | |
registers event callback function (public member function of std::ios_base) | |
[static] |
sets whether C++ and C IO libraries are interoperable (public static member function of std::ios_base) |
Member classes | |
stream exception (public member class of std::ios_base) | |
initializes standard stream objects (public member class of std::ios_base) |
Member types and constants | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Type | Explanation | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
stream open mode type
The following constants are also defined:
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formatting flags type
The following constants are also defined:
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state of the stream type
The following constants are also defined:
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seeking direction type
The following constants are also defined:
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specifies event type (enum) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
callback function type (typedef) |