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y0, y1, yn

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The Microsoft-implemented POSIX function names y0, y1, and yn are deprecated aliases for the _y0, _y1, and _yn functions. By default, they generate Compiler warning (level 3) C4996. The names are deprecated because they don't follow the Standard C rules for implementation-specific names. However, the functions are still supported.

We recommend you use _y0, _y1, and _yn instead. Or, you can continue to use these function names, and disable the warning. For more information, see Turn off the warning and POSIX function names.