Re: Using CFSTR() with const char * variable
Re: Using CFSTR() with const char * variable
- Subject: Re: Using CFSTR() with const char * variable
- From: Steve Christensen <email@hidden>
- Date: Sat, 06 Jun 2015 18:39:36 -0700
In my prefix file that is used to build precompiled headers, I include the following after #import-ing all the framework headers. It replaces the standard definition with a version that doesn't insert quotes around an unquoted string literal.
#undef CFSTR//(cStr)
#ifdef __CONSTANT_CFSTRINGS__
#define CFSTR(cStr) ((CFStringRef) __builtin___CFStringMakeConstantString(cStr))
#else
#define CFSTR(cStr) __CFStringMakeConstantString(cStr)
#endif
> On Jun 5, 2015, at 8:02 PM, Carl Hoefs <email@hidden> wrote:
>
> If I use CFSTR() in the following way:
> CFStringRef mystr = CFSTR( "This is a string" );
> there is no problem.
>
> However, if I use a variable instead of “string” Xcode flags this as an error:
> const char *mystring = "This is a string";
> CFStringRef mystr = CFSTR( mystring );
> ^ <— Expected ")"
>
> In CFString.h, CFSTR is defined as:
> #define CFSTR(cStr) __CFStringMakeConstantString("" cStr "")
>
> Is it possible to use CFSTR() with a const char * variable?
>
> Xcode 6.3.2
> -Carl
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