Standard C Library (libc.so, libc.a)
FILE *tmpfile ( void );
Interfaces documented on this reference page conform to industry standards as follows:
tmpfile(): XPG4, XPG4-UNIX
Refer to the standards(5) reference page for more information about industry standards and associated tags.
The tmpfile() function creates a temporary file and returns its FILE pointer. The file is opened for update. The temporary file is automatically deleted when the process using it terminates.
Upon successful completion, the tmpfile() function returns a pointer to the stream of the file that is created. Otherwise, it returns a null pointer and sets errno to indicate the error.
The tmpfile() function sets errno to the specified values for the following conditions:
A signal was caught during tmpfile(). OPEN_MAX file descriptors are currently open in the calling process.
Functions: fopen(3), mktemp(3), tmpnam(3), unlink(2), getdtablesize(2)
Standards: standards(5) delim off