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Copies a limited number of bytes from a source buffer to a target buffer sequence.
template< typename MutableBufferSequence> std::size_t buffer_copy( const MutableBufferSequence & target, const mutable_buffer & source, std::size_t max_bytes_to_copy);
A modifiable buffer sequence representing the memory regions to which the bytes will be copied.
A modifiable buffer representing the memory region from which the bytes will be copied. The contents of the source buffer will not be modified.
The maximum number of bytes to be copied.
The number of bytes copied.
The number of bytes copied is the lesser of:
buffer_size(target)
buffer_size(source)
max_bytes_to_copy