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std::ostreambuf_iterator::failed

From cppreference.com
bool failed() const

Returns true if the iterator encountered the end-of-file condition, that is, if an earlier call to std::basic_streambuf::sputc (made by operator=) returned Traits::eof .

Contents

Parameters

(none)

Return value

true if this iterator has encountered the end-of-file condition on putput, false otherwise.

Exceptions

noexcept specification:  
noexcept
  

Example