buffer_copy (1 of 30 overloads)

Copies bytes from a source buffer to a target buffer.

std::size_t buffer_copy(
    const mutable_buffer & target,
    const const_buffer & source);

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

The number of bytes copied.

The number of bytes copied is the lesser of:

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