Section (3) tmpfile
tmpfile — create a temporary file
tmpfile() function opens
a unique temporary file in binary read/write (w+b) mode. The
file will be automatically deleted when it is closed or the
returns a stream descriptor, or NULL if a unique filename
cannot be generated or the unique file cannot be opened. In
the latter case,
errno is set to
indicate the error.
Search permission denied for directory in file_zsingle_quotesz_s path prefix.
Unable to generate a unique filename.
The call was interrupted by a signal; see signal(7).
The per-process limit on the number of open file descriptors has been reached.
The system-wide limit on the total number of open files has been reached.
There was no room in the directory to add the new filename.
For an explanation of the terms used in this section, see attributes(7).
POSIX.1-2001 specifies: an error message may be written to
stdout if the stream cannot be
The standard does not specify the directory that
tmpfile() will use. Glibc will
try the path prefix
and if that fails the directory
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description of the project, information about reporting bugs,
and the latest version of this page, can be found at
Copyright 1993 David Metcalfe (davidprism.demon.co.uk)
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Formatted or processed versions of this manual, if unaccompanied by
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Linux libc source code
Lewine_zsingle_quotesz_s _POSIX Programmer_zsingle_quotesz_s Guide_ (O_zsingle_quotesz_Reilly & Associates, 1991)
386BSD man pages
Modified Sat Jul 24 17:46:57 1993 by Rik Faith (faithcs.unc.edu)
Modified 2001-11-17, aeb