buffer_copy (1 of 2 overloads)

Copies bytes from a source buffer sequence to a target buffer sequence.

template<
    typename MutableBufferSequence,
    typename ConstBufferSequence>
std::size_t buffer_copy(
    const MutableBufferSequence & target,
    const ConstBufferSequence & source);

Parameters

target: A modifiable buffer sequence representing the memory regions to which the bytes will be copied.
source: A non-modifiable buffer sequence representing the memory regions from which the bytes will be copied.

Return Value

The number of bytes copied.

Remarks

The number of bytes copied is the lesser of:

buffer_size(target)
buffer_size(source)

This function is implemented in terms of memcpy, and consequently it cannot be used to copy between overlapping memory regions.