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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: sopen
sopen
12/16/2019
sopen
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
sopen
sopen function
1ce0b707-0c9e-4942-8467-ce7f6cd68acc

sopen

The Microsoft-specific function name sopen is a deprecated alias for the _sopen function. By default, it generates Compiler warning (level 3) C4996. The name is deprecated because it doesn't follow the Standard C rules for implementation-specific names. However, the function is still supported.

We recommend you use _sopen or the security-enhanced _sopen_s function instead. Or, you can continue to use this function name, and disable the warning. For more information, see Turn off the warning and POSIX function names.