Question

I have strValue as NSString, and I’d like to copy strValue‘s content to another place.

The place is mstrValue, which is an NSMutableString. Space for mstrValue has already been allocated.

I wonder how can I use memcpy or strcpy for this purpose.

If it is impossible, I’d like to know other ways to do it.

Answer 1

Your question isn’t too clear but if you want to set the mutable string’s value to the other string then do this:

[mstrValue setString:strValue];

If you want to append the value then do this:

[mstrValue appendString:strValue];

Both of these assume that at some point you did:

mstrValue = [[NSMutableString alloc] init];

Have a look at the docs for NSMutableString. There are lots of methods for updating its value.