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y0-y1-yn.md

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description title ms.date api_name api_location api_type topic_type f1_keywords helpviewer_keywords ms.assetid
Learn more about: y0, y1, yn
y0, y1, yn
12/16/2019
y1
yn
y0
msvcrt.dll
msvcr80.dll
msvcr90.dll
msvcr100.dll
msvcr100_clr0400.dll
msvcr110.dll
msvcr110_clr0400.dll
msvcr120.dll
msvcr120_clr0400.dll
ucrtbase.dll
DLLExport
apiref
CORECRT_MATH/yn
CORECRT_MATH/y1
CORECRT_MATH/y0
yn
y1
y0
y0 function
y1 function
yn function
e14215f3-53d4-4ae8-816e-4c1ec2019316

y0, y1, yn

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.