yy_flush_buffer

Discard all buffered characters. On the next scan, YY_INPUT will be called.

void yy_flush_buffer (
　　YY_BUFFER_STATE b
)

b

Discard all buffered characters. On the next scan, YY_INPUT will be called.
@param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.