Thread: How can I set a file pointer to zero? Casting?

I want to initialize my FILE* fp (file pointer) to zero. Which is a data member of my class.

17 invalid conversion from `int' to `FILE*'

in my header

const void setFileP(int m){ fp = m; } //Sets FP to an integer


and in my class

Code:

void Bank::init(int n, int m)
{
     setSize(n);
     setFileP(m);
}

FILE is a structure, I think.

Okay, try this:

Code:

FILE *fp;
fp = 0;

I think it sould work. You probably went

Code:

FILE *fp;
*fp = 0;

Why are you posting this on the C board? classes are not C. They're C++. Wrong forum.

Next, why are you trying to manipulate the file pointer manually? You set pointers to NULL or to something specific by a call to fopen etc. You don't dereference the file pointer, because it's obvious you don't know anything about its contents. Set it to NULL and leave it at that. You shouldn't even have a function to set it to anything, let alone an integer. FILE* are not integers. Don't try to use them as one.


Quzah.