Re: Converting NSString to C++ std::string
Re: Converting NSString to C++ std::string
- Subject: Re: Converting NSString to C++ std::string
- From: Andrew Wood <email@hidden>
- Date: Sat, 9 May 2009 13:34:26 +0100
Investigated it a bit further. It works if I declare the string in
the method where Im doing the assignment, but what I was trying to do,
and really need to do, is decalre the std::string in the app
controllers header file, so that its visible to all methods in the
controller, then do the assignment in an action method which is called
when a button is clicked.
On 8 May 2009, at 17:56, Drew Lawson wrote:
According to Alex Curylo:
On 8-May-09, at 8:55 AM, email@hidden wrote:
mycppstring = std::string([[myNSTextField stringValue] UTF8String]);
But it keeps crashing. What's the recommended way?
I have no idea, but it works for me to simply assign it without the
constructor. Why, here's an example in the file I'm working on right
now, fancy that:
The only other gotcha I can think of (because it annoys me) is that
std::string does not play nice with null pointers. Is it possible
that stringValue returns nil?
Hmm, I had one other thought. There are several std::string
constructors, depending on the parameter type. In ObjC++, is it
unambiguous at compile time that the expression is "const char*"?
--
Drew Lawson | We were taking a vote when
| the ground came up and hit us.
| -- Cylon warrior
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