iOS Appending Strings using NSStrings

[rbeatajane]

Hi,

char string1[512] = "Hello";
	NSString* string = @"World!";
	NSString* string2 = (NSString*)string1;
	string2 = [string stringByAppendingString:string2];
	NSLog(@"string:%@",string2);

I have to append the strings. One is of c-type and the other is of NSObject type.
How to append these two strings.I tried to append two NSStrings and I got the output.
I'm getting an EXC_BAD_ACCESS when tried to execute the above code.
How to make the char as an NSObject type.

 

[robbieduncan]

NSStrings are complex objects. They are not arrays of char. You absolutely completely and utterly cannot cast char* to NSString. If you look at the NSString documentation you will see numerous methods for working with CStrings.

 

[rbeatajane]

Yes

NSString* string2 = [NSString stringWithUTF8String:string1]; solved my problem

 

[rbeatajane]

How do i convert a NSString to a char*?

 

[robbieduncan]

How do i convert a NSString to a char*?

Did you look in the documentation? There is a whole group of methods titled "Getting C Strings". In addition the NSString documentation links to the String Programming Guide which I would expect you to have read. It has a section "Creating and Converting String Objects" which demonstrates answers to every question in this thread.

The ability to use the documentation is a core programming skill that I would suggest you need to develop. Simply posting questions on forums before you have read the documentation is very lazy.

 

[rbeatajane]

Sorry ..Will never do this again