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ios::fail

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int fail() const;

Return Value

Returns a nonzero value if any I/O error (not end of file) has occurred. This condition corresponds to either the badbit or failbit error flag being set. If a call to bad returns 0, you can assume that the error condition is nonfatal and that you can probably continue processing after you clear the flags.

ios Overview |  Abstract Stream Base Class

See Also   ios::bad, ios::clear