Re: Is @"constantstring" pointer equal to @"constantstring" aguarantee?
Re: Is @"constantstring" pointer equal to @"constantstring" aguarantee?
- Subject: Re: Is @"constantstring" pointer equal to @"constantstring" aguarantee?
- From: Ken Ferry <email@hidden>
- Date: Fri, 28 Mar 2008 04:02:56 -0700
On Mar 28, 2008, at 2:36 AM, Chris Hanson <email@hidden> wrote:
Yup. And they're not allocated on the heap; they're stored in the
executable It's slightly more complicated than that -- there's also
GCC's "-fno-constant-cfstrings" option, which will cause at least
CFSTR() constants (I'm not sure whether it also covers @""
constants) to be created dynamically rather than statically.
The flag does not cover @"" strings, but there's a bug that it should.
-Ken
This is important for developers of bundles which may be unloaded,
because a pointer to a constant string in an executable that's will
become a dangling pointer if that executable is unloaded.
-- Chris
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