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async_write_at

Start an asynchronous operation to write a certain amount of data at the specified offset.

template<
    typename AsyncRandomAccessWriteDevice,
    typename ConstBufferSequence,
    typename WriteHandler>
void-or-deduced async_write_at(
    AsyncRandomAccessWriteDevice & d,
    uint64_t offset,
    const ConstBufferSequence & buffers,
    WriteHandler handler);
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template<
    typename AsyncRandomAccessWriteDevice,
    typename ConstBufferSequence,
    typename CompletionCondition,
    typename WriteHandler>
void-or-deduced async_write_at(
    AsyncRandomAccessWriteDevice & d,
    uint64_t offset,
    const ConstBufferSequence & buffers,
    CompletionCondition completion_condition,
    WriteHandler handler);
  » more...

template<
    typename AsyncRandomAccessWriteDevice,
    typename Allocator,
    typename WriteHandler>
void-or-deduced async_write_at(
    AsyncRandomAccessWriteDevice & d,
    uint64_t offset,
    basic_streambuf< Allocator > & b,
    WriteHandler handler);
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template<
    typename AsyncRandomAccessWriteDevice,
    typename Allocator,
    typename CompletionCondition,
    typename WriteHandler>
void-or-deduced async_write_at(
    AsyncRandomAccessWriteDevice & d,
    uint64_t offset,
    basic_streambuf< Allocator > & b,
    CompletionCondition completion_condition,
    WriteHandler handler);
  » more...
Requirements

Header: boost/asio/write_at.hpp

Convenience header: boost/asio.hpp


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