DOC: tmpnam() Operation Does Not Change If P_tmpdir Modified (46131)
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 4.0
- Microsoft Visual C++, 32-bit Editions 4.1
- Microsoft Visual C++, 32-bit Editions 5.0
- Microsoft Visual C++, 32-bit Editions 6.0
This article was previously published under Q46131 SUMMARY
In Microsoft C, the documentation for the functions tmpnam(), tempnam() and
_tempnam() states that under certain conditions they create a name that
consists of the path prefix defined by the P_tmpdir entry in STDIO.H. This
is ambiguous. A better way of stating this is that they create a name that
consists of a path prefix to the root of the current drive; this is also
what P_tmpdir is defined as. However, P_tmpdir is defined as the root
directory on the default drive, which is where the created name would
reside. However, any modification of P_tmpdir in STDIO.H does not change
the filename that is created.
The documentation states that changing the definition of P_tmpdir or
L_tmpnam does not change the operation of tmpnam(). Nor does it change the
operation of tempnam() or _tempnam(). These two defines are provided only
for XENIX/UNIX portability. The three functions tmpnam(), tempnam() and
_tempnam() do not make use of these two defines.
| Modification Type: | Minor | Last Reviewed: | 7/5/2005 |
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| Keywords: | kbdocerr kbdocfix KB46131 |
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