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tmpfile(3) Library Functions Manual tmpfile(3) NAME tmpfile - Creates a temporary file LIBRARY Standard C Library (libc.so, libc.a) SYNOPSIS #include <stdio.h> FILE *tmpfile ( void ); STANDARDS Interfaces documented on this reference page conform to industry stan- dards as follows: tmpfile(): XPG4, XPG4-UNIX Refer to the standards(5) reference page for more information about in- dustry standards and associated tags. DESCRIPTION The tmpfile() function creates a temporary file and returns its FILE pointer. The file is opened for update. The temporary file is automati- cally deleted when the process using it terminates. RETURN VALUES 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. ERRORS The tmpfile() function sets errno to the specified values for the fol- lowing conditions: A signal was caught during tmpfile(). OPEN_MAX file descriptors are currently open in the calling process. [Digital] All available file descriptors are currently open in the calling process. The maximum allowable number of files is currently open in the system. The directory or file system that would contain the new file cannot be expanded. RELATED INFORMATION Functions: fopen(3), mktemp(3), tmpnam(3), unlink(2), getdtablesize(2) Standards: standards(5) delim off tmpfile(3)