basic_flat_buffer::commit

Move bytes from the output sequence to the input sequence.

void
commit(
    std::size_t n);

Name	Description
`n`	The number of bytes to move. If this is larger than the number of bytes in the output sequences, then the entire output sequences is moved.

All previous buffers sequences obtained from calls to basic_flat_buffer::data or basic_flat_buffer::prepare are invalidated.

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