FILE passing through functions

[ssjnamek]

Hey if memory serves correctly in C++ if i open a file say in main and then want to pass it through a function so i can use it all i have to do is reference it with a little &

i tried this in C not knowing how to do it in C anyway and it didnt work

i was curious could someone tell me how i can open a file in main and then pass it through a function?? im guessing youd have to reference it somehow but im not sure?

[Salem]

The nearest equivalent of a reference in C is a pointer.

[ssjnamek]

ya cause you do the FILE *filepointerhere

i tried that but you cant just put in a function parameters a FILE *ffsdfsdfsd is there a way to get around that so i can still use the file in another function besides main?

[wintellect]

something like this:

#include <stdio.h>

int mysub(FILE *ptr);

int main(void)
{
        FILE *ptr;

        if ( (ptr = fopen("test.txt", "w")) == NULL)
                return(10);

        if (fprintf(ptr, "This was printed from main\n") == -1)
                return(20);

        if ( mysub(ptr) == -1)
                return(30);

        return(0);
}

int mysub(FILE *ptr)
{
        return( fprintf(ptr, "This was printed from the function mysub\n") );
}