Template:cpp/io/basic ios/iostate accessors
From cppreference.com
The following table shows the value of basic_ios accessors (good(), fail(), etc.) for all possible combinations of ios_base::iostate flags:
| ios_base::iostate flags | basic_ios accessors
| |||||||
eofbit
|
failbit
|
badbit
|
good() | fail() | bad() | eof() | operator bool | operator! |
| false | false | false | true | false | false | false | true | false |
| false | false | true | false | true | true | false | false | true |
| false | true | false | false | true | false | false | false | true |
| false | true | true | false | true | true | false | false | true |
| true | false | false | false | false | false | true | true | false |
| true | false | true | false | true | true | true | false | true |
| true | true | false | false | true | false | true | false | true |
| true | true | true | false | true | true | true | false | true |
