Question

I had to implement a C function in an Objective-C class that normally would get called with int main (in it’s own file). Since I’m unfamiliar with splicing code I need to know how to have it called upon in either the awakefromnib or applicationDidFinishLaunching from within the Cocoa section. Or if there’s a much better way to do this I’m listening.

Here’s an example without getting too technical:

// Cocoa Imports

#import "AppDelegate.h"
...

// C Inlcudes
#include <stdio.h> 

// (int main had to change to something else obviously)

int dos () { 
printf ("I'm a C program\n"); 
}

// (back to cocoa)

@implementation AppDelegate

@synthesize window;

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{

//[This is where I need my C function above to execute]

Answer 1

It’s called just the same as you would from C and you can call any C function you like:

// Cocoa Imports

#import "AppDelegate.h"
...

// C Inlcudes
#include <stdio.h> 

// (int main had to change to something else obviously)

int dos (const char *filename)
{ 
    printf ("I was passed '%s'\n", filename); 
}

// (back to cocoa)

@implementation AppDelegate

@synthesize window;

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    dos("/path/to/some/file");
}