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basic_streambuf::commit

Move characters from the output sequence to the input sequence.

void commit(
    std::size_t n);

Appends n characters from the start of the output sequence to the input sequence. The beginning of the output sequence is advanced by n characters.

Requires a preceding call prepare(x) where x >= n, and no intervening operations that modify the input or output sequence.

Remarks

If n is greater than the size of the output sequence, the entire output sequence is moved to the input sequence and no error is issued.


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