DOCFIX: fopen() Will Set errno Values Incorrect in Documentation (46024)
The information in this article applies to:
- The C Run-Time (CRT), when used with:
- Microsoft Visual C++ for Windows, 16-bit edition 1.0
- Microsoft Visual C++ for Windows, 16-bit edition 1.5
- Microsoft Visual C++, 32-bit Editions 1.0
- Microsoft Visual C++, 32-bit Editions 2.0
- Microsoft Visual C++, 32-bit Editions 5.0
- Microsoft Visual C++, 32-bit Editions 6.0
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.
| Modification Type: | Major | Last Reviewed: | 12/12/2003 |
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| Keywords: | kbCRT kbdocerr kbdocfix KB46024 kbAudDeveloper |
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