What is the reason for printf (C) utilizing the identical buffer for consequent invocations?

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The reason for printf in C utilizing the identical buffer for consequent invocations is to maintain consistency in formatting and avoid mixing output from different print statements. By using the same buffer, the previous output is not overwritten or mixed with the current output, ensuring that the output is properly formatted and organized. Additionally, using the same buffer can improve performance by reducing memory allocation and deallocation overhead.