OpenEuphoria

Re: C question (linux)

• Posted by akusaya at gmx.net Dec 11, 2003
• 498 views

The fopen() function return a value with type FILE*, which is a pointer.

In your function file_open(), the return type is int, it should be
changed to FILE*, so that the function becomes:

FILE* file_open(char *name, int mode)
{
     return fopen(name, "r");
}

P> Does anyone have any suggestions as to why this:

P> int file_open(char *name, int mode)
P> {

P> //	return open(name, mode);

P>         return fopen(name, "r");
P> }

P> Would return the following when compiled:

P> warning: return makes integer from pointer without a cast


P> This is driving me absolutely mad! I'm attempting to adjust the source of a
P> program I didn't write. For whatever reason, the old open() call is returning
P> an invalid file descriptor (134758848 to be exact) so I am trying to change
P> it from open() to fopen(). The files passed through this routine are all read
P> only types, so there is no reason for mode to ever be anything but 0 ("r") so
P> I figured just change the ,mode) to a "r"

P> If anyone could think of any reason why I would get that message. I have no
P> idea why, but I keep coming up with it.