| I/O manipulators | ||||
| Print functions(C++23) | ||||
| C-style I/O | ||||
| Buffers | ||||
(C++23) | ||||
(C++98/26*) | ||||
(C++20) | ||||
| Streams | ||||
| Abstractions | ||||
| File I/O | ||||
| String I/O | ||||
| Array I/O | ||||
(C++23) | ||||
(C++23) | ||||
(C++23) | ||||
(C++98/26*) | ||||
(C++98/26*) | ||||
(C++98/26*) | ||||
| Synchronized Output | ||||
(C++20) | ||||
| Types | ||||
| Error category interface | ||||
(C++11) | ||||
(C++11) |
| Member functions | ||||
| State functions | ||||
basic_ios::rdstate | ||||
| Formatting | ||||
| Miscellaneous | ||||
| Protected member functions | ||||
(C++11) | ||||
(C++11) | ||||
(C++11) |
iostate rdstate()const; | ||
Returns the current stream error state.
Contents |
(none)
current stream error state. It is a bitmask type and can be a combination of the following constants:
| Constant | Explanation |
| goodbit | no error |
| badbit | irrecoverable stream error |
| failbit | input/output operation failed (formatting or extraction error) |
| eofbit | associated input sequence has reached end-of-file |
#include <iostream>#include <sstream> int main(){std::ostringstream stream; if(stream.rdstate()==std::ios_base::goodbit)std::cout<<"stream state is goodbit\n"; stream.setstate(std::ios_base::eofbit); // check state is exactly eofbit (no failbit and no badbit)if(stream.rdstate()==std::ios_base::eofbit)std::cout<<"stream state is eofbit\n";}
Output:
stream state is goodbitstream state is eofbit
| sets state flags (public member function)[edit] | |
| modifies state flags (public member function)[edit] |
