Thread: c-style file steam scope

would the code below (granted I didnt type it wrong) create a file and then write to it or create a file, and attempt to write to it although it is "out of scope" per say, created in a separate function, creating an error?

Code:

int main()
{
     file_stream_declaration();
     
     char[15] characters_written = "characters";
     fputs(characters_written, fopen);

     return 0;

file_stream_declaration()
{
     FILE *fopen("temporary_file.txt" "w+");
     return 0;
}

Code:

int main()
{
     file_stream_declaration();
      
     char[15] characters_written = "characters";
     fputs(characters_written, fopen);
 
     return 0;
 
file_stream_declaration()
{
     FILE *fopen("temporary_file.txt" "w+");
     return 0;
}

Errors:

• Your syntax for declaring a char array is wrong
• You're missing an end brace for main.
• Your function is returning 0 but the return type is unspecified
• You can't pass a function to fputs
• Fopen is a function that returns a FILE *, you're missing a variable name

Other issues:

• You need some way to pass the opened file to main, usually you'd use return to return the opened file.
• You aren't checking to see if the file is actually opened
• You aren't closing the file when you're done

It looks to me like this is your first attempt for file I/O - Don't be discouraged, but there is a lot that needs to change

I think that the best thing that you could do is read through a quick tutorial on how this is done - "C programming - C File I/O tutorial"

After reading through this tutorial, have another attempt and then if you still are having problems, post your code

On a second look at your code, (based on the scope of variables) you are new to the C-language (right?)

There is more than tutorials on file I/O on this site - C Tutorial - Learn C - Cprogramming.com