std::ostreambuf_iterator<CharT,Traits>::failed - cppreference.com

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Iterator library

Iterator concepts

indirectly_readable (C++20)
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Iterator primitives

input_iterator_tagoutput_iterator_tagforward_iterator_tagbidirectional_iterator_tagrandom_access_iterator_tagcontiguous_iterator_tag

(C++20)

iter_value_titer_difference_titer_reference_titer_const_reference_titer_rvalue_reference_titer_common_reference_t

(C++20)(C++20)(C++20)(C++23)(C++20)(C++20)

iterator (deprecated in C++17)
iterator_traits
incrementable_traits (C++20)
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Algorithm concepts and utilities

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indirectly_unary_invocableindirectly_regular_unary_invocable

(C++20)(C++20)

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(C++20)

(C++20)

(C++26)

reverse_iterator
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move_iterator (C++11)
make_move_iterator (C++11)
default_sentinel_tdefault_sentinel (C++20)(C++20)
unreachable_sentinel_tunreachable_sentinel (C++20)(C++20)

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Stream iterators

istream_iterator
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istreambuf_iterator
ostreambuf_iterator

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ranges::iter_move (C++20)
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Iterator operations

advance
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prev (C++11)
next (C++11)

ranges::advance (C++20)
ranges::distance (C++20)
ranges::prev (C++20)
ranges::next (C++20)

Range access

begincbegin (C++11)(C++14)
rbegincrbegin (C++14)(C++14)

endcend (C++11)(C++14)
rendcrend (C++14)(C++14)

sizessize (C++17)(C++20)
empty (C++17)
data (C++17)

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std::ostreambuf_iterator

Member functions
ostreambuf_iterator::ostreambuf_iterator
ostreambuf_iterator::operator=
ostreambuf_iterator::operator*
ostreambuf_iterator::operator++ostreambuf_iterator::operator++(int)
ostreambuf_iterator::failed

[edit]

bool failed() const throw();		(until C++11)
bool failed() const noexcept;		(since C++11)

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.

Parameters

(none)

Return value

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

Example

This section is incomplete
Reason: no example