Start an asynchronous operation to read a certain amount of data from a stream.

template<
    typename AsyncReadStream,
    typename MutableBufferSequence,
    typename ReadHandler>
void-or-deduced async_read(
    AsyncReadStream & s,
    const MutableBufferSequence & buffers,
    ReadHandler && handler,
    typename enable_if< is_mutable_buffer_sequence< MutableBufferSequence >::value >::type *  = 0);
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template<
    typename AsyncReadStream,
    typename MutableBufferSequence,
    typename CompletionCondition,
    typename ReadHandler>
void-or-deduced async_read(
    AsyncReadStream & s,
    const MutableBufferSequence & buffers,
    CompletionCondition completion_condition,
    ReadHandler && handler,
    typename enable_if< is_mutable_buffer_sequence< MutableBufferSequence >::value >::type *  = 0);
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template<
    typename AsyncReadStream,
    typename DynamicBufferSequence,
    typename ReadHandler>
void-or-deduced async_read(
    AsyncReadStream & s,
    DynamicBufferSequence && buffers,
    ReadHandler && handler,
    typename enable_if< is_dynamic_buffer_sequence< DynamicBufferSequence >::value >::type *  = 0);
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template<
    typename AsyncReadStream,
    typename DynamicBufferSequence,
    typename CompletionCondition,
    typename ReadHandler>
void-or-deduced async_read(
    AsyncReadStream & s,
    DynamicBufferSequence && buffers,
    CompletionCondition completion_condition,
    ReadHandler && handler,
    typename enable_if< is_dynamic_buffer_sequence< DynamicBufferSequence >::value >::type *  = 0);
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template<
    typename AsyncReadStream,
    typename Allocator,
    typename ReadHandler>
void-or-deduced async_read(
    AsyncReadStream & s,
    basic_streambuf< Allocator > & b,
    ReadHandler && handler);
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template<
    typename AsyncReadStream,
    typename Allocator,
    typename CompletionCondition,
    typename ReadHandler>
void-or-deduced async_read(
    AsyncReadStream & s,
    basic_streambuf< Allocator > & b,
    CompletionCondition completion_condition,
    ReadHandler && handler);
  » more...

Requirements

Header: asio/read.hpp

Convenience header: asio.hpp