std::istreambuf_iterator<CharT,Traits>:: equal

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< cpp ‎ | iterator ‎ | istreambuf iterator

indirectly_readable (C++20)
indirectly_writable (C++20)
weakly_incrementable (C++20)
incrementable (C++20)
is-integer-like is-signed-integer-like (C++20) (C++20)

sentinel_for (C++20)
sized_sentinel_for (C++20)
input_iterator (C++20)
output_iterator (C++20)
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random_access_iterator (C++20)
contiguous_iterator (C++20)

Iterator primitives

input_iterator_tag output_iterator_tag forward_iterator_tag bidirectional_iterator_tag random_access_iterator_tag contiguous_iterator_tag

(C++20)

iter_value_t iter_difference_t iter_reference_t iter_const_reference_t iter_rvalue_reference_t iter_common_reference_t

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

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

Indirect callable concepts

indirectly_unary_invocable indirectly_regular_unary_invocable

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

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(C++26)

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make_const_sentinel (C++23)

Stream iterators

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istreambuf_iterator
ostreambuf_iterator

Iterator customization points
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ranges::iter_swap (C++20)

Iterator operations

advance
distance
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next (C++11)

ranges::advance (C++20)
ranges::distance (C++20)
ranges::prev (C++20)
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Range access

begin cbegin (C++11) (C++14)
rbegin crbegin (C++14) (C++14)

end cend (C++11) (C++14)
rend crend (C++14) (C++14)

size ssize (C++17) (C++20)
empty (C++17)
data (C++17)

bool equal ( const istreambuf_iterator & it ) const ;

检查 * this 与 it 是否同时有效或同时无效，无论它们使用的流缓冲区对象为何。

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Filesystem library (C++17)
Concurrency support library (C++11)
Execution control library (C++26)
Technical specifications
Symbols index
External libraries

Member functions
istreambuf_iterator::istreambuf_iterator
istreambuf_iterator::operator*
istreambuf_iterator::operator++ istreambuf_iterator::operator++(int)
istreambuf_iterator::equal
Non-member functions
operator== operator!= (until C++20)

缺陷报告	应用于	发布时的行为	正确行为
LWG 110	C++98	函数签名为 bool equal ( istreambuf_iterator & it )	添加了 const 限定符
LWG 1126	C++98	LWG 问题 110 未得到妥善解决，参数类型仍为 `istreambuf_iterator&`	添加了 const 限定符

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Variants

std::istreambuf_iterator<CharT,Traits>:: equal

目录

参数

返回值

异常

缺陷报告