> On 23 Apr 2015, at 3:30 pm, Roland King <r...@rols.org> wrote:
> 
> Check if the address of the string constant is NULL. If it is, it wasn’t 
> found. That’s the same as checking for weak linked methods.


But that test itself crashes…


i.e. if I do this:

if( MLMediaSourcePhotosIdentifier == nil )
{


        ...
}

I get EXC_BAD_ACCESS.

—Graham



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