: Cannot implement with language itself. Need compiler support. Used C++ N STL
: Partially implemented with C++ N
: Fully implemented with C++ N
: Not yet implemented
| Features | Standard | Implemented in |
|---|---|---|
| Forward declarations | ||
| allocator |  |
 |
| basic_ios | |
|
| fpos | |
|
| basic_streambuf | |
|
| basic_ostream | |
|
| basic_istream | |
|
| basic_iostream | |
|
| basic_filebuf | |
|
| basic_ifstream | |
|
| basic_ofstream | |
|
| basic_fstream | |
|
| basic_stringbuf | |
|
| basic_istringstream | |
|
| basic_ostringstream | |
|
| basic_stringstream | |
|
| basic_syncbuf |  |
|
| basic_osyncstream | |
|
| basic_spanbuf |  |
|
| basic_ispanstream | |
|
| basic_ospanstream | |
|
| basic_spanstream | |
|
|
Deprecated in C++98 | |
|
Deprecated in C++98 | |
|
Deprecated in C++98 | |
|
Deprecated in C++98 |