W3cubDocs

/C++

std::basic_ios<CharT,Traits>::good

bool good() const;

Returns true if the the most recent I/O operation on the stream completed successfully. Specifically, returns result of rdstate() == 0.

See ios_base::iostate for the list of conditions that set the stream status bits.

Parameters

(none).

Return value

true if the stream has no errors occurred, false otherwise.

Example

See also

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

© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
http://en.cppreference.com/w/cpp/io/basic_ios/good