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tmpfile

Header File

stdio.h

Category

Input/output Routines

Prototype

FILE *tmpfile(void);

Description

Opens a “scratch” file in binary mode.

tmpfile creates a temporary binary file and opens it for update (w + b). If you do not change the directory after creating the temporary file, the file is automatically removed when it’s closed or when your program terminates.

Return Value

tmpfile returns a pointer to the stream of the temporary file created. If the file can’t be created, tmpfile returns NULL.

Example

Copy Code

    #include <stdio.h>
    #include <process.h>
    int main(void)
    {
       FILE *tempfp;
       tempfp = tmpfile();
       if (tempfp)
          printf("Temporary file created\n");
       else
       {
          printf("Unable to create temporary file\n");
          exit(1);
       }
       return 0;
    }

Portability

POSIX | Win32 | ANSI C | ANSI C++
+ | + | + | +

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