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Holds a buffer that can be modified.
class mutable_buffer
| Name | Description | 
|---|---|
| Get a pointer to the beginning of the memory range. | |
| 
                  Construct an empty buffer.  | |
| Move the start of the buffer by the specified number of bytes. | |
| Get the size of the memory range. | 
| Name | Description | 
|---|---|
| Create a new modifiable buffer that is offset from the start of another. | 
        The mutable_buffer
        class provides a safe representation of a buffer that can be modified. It
        does not own the underlying data, and so is cheap to copy or assign.
      
        The contents of a buffer may be accessed using the data() and
        size() member functions:
      
boost::asio::mutable_buffer b1 = ...; std::size_t s1 = b1.size(); unsigned char* p1 = static_cast<unsigned char*>(b1.data());
        The data() member function permits violations of type safety,
        so uses of it in application code should be carefully considered.
      
        Header: boost/asio/buffer.hpp
      
        Convenience header: boost/asio.hpp