String to Integer

[Gimples]

I want to be able to add one number to another. One of my numbers is an integer, the other is a string in an editable text field. The only problem I have little knowledge of Xcode and do not know the function to turn a string into an integer. Also, when I build my app, I get an error that says "warning implicit declaration of function degreesToRadians", I have no idea why it is giving me this error. Here is my code:

drawingPoint1 = CGPointMake(drawingPoint.x+cos(degreesToRadians(angle1))*100,drawingPoint.y+sin(degreesToRadians(angle1))*100);

Thanks

[ftm]

NSString *s = @"123";
int n = [s intValue];

That will do the conversion.

[Gimples]

thanks, worked perfectly. Now I can't figure out why Xcode is saying I'm using degreedToRadians wrong...

[mattjgalloway]

Where is that function defined? It's warning because there's no function declaration, but the fact that your code works means that it must be being included by a library somewhere. You probably just need to include a header file associated with that function.

[mohan.agadkar]

Originally Posted by Gimples

I want to be able to add one number to another. One of my numbers is an integer, the other is a string in an editable text field. The only problem I have little knowledge of Xcode and do not know the function to turn a string into an integer. Also, when I build my app, I get an error that says "warning implicit declaration of function degreesToRadians", I have no idea why it is giving me this error. Here is my code:

drawingPoint1 = CGPointMake(drawingPoint.x+cos(degreesToRadians(angle1))*100,drawingPoint.y+sin(degreesToRadians(angle1))*100);

Thanks

At the top, before implementation, in .m file, paste the following lines to fix the warning

CGFloat degreesToRadians(CGFloat degrees) {return degrees * M_PI / 180;};
CGFloat radiansToDegrees(CGFloat radians) {return radians * 180/M_PI;};