tmpfile

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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 is closed or when your program terminates.

Return Value

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

Example

#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++
+	+	+	+