DOCFIX: fopen() Will Set errno Values Incorrect in Documentation
| Article ID | : | 46024 |
| Last Review | : | December 12, 2003 |
| Revision | : | 3.0 |
This article was previously published under Q46024
SUMMARY
The documentation for the open() and sopen() functions indicates that
these functions set errno values, while the fopen() documentation does
not explicitly state this. However, fopen() will set errno for most of
the same error conditions as open() and sopen().
Internally, fopen() calls many of the same low-level routines that open() and sopen() call. Because these routines set errno on an error, errno is also set for errors with fopen(). The one errno value that is NOT set with fopen() is EMFILE. For more information on the exact errno values, refer to the documentation for open().
This problem was fixed in the Books On-line of Microsoft Visual C++, 32-bit Edition, version 4.0.
Internally, fopen() calls many of the same low-level routines that open() and sopen() call. Because these routines set errno on an error, errno is also set for errors with fopen(). The one errno value that is NOT set with fopen() is EMFILE. For more information on the exact errno values, refer to the documentation for open().
This problem was fixed in the Books On-line of Microsoft Visual C++, 32-bit Edition, version 4.0.
APPLIES TO
| The C Run-Time (CRT), when used with: | |||||||||||||||||||
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