Re: Objective-C++
Re: Objective-C++
- Subject: Re: Objective-C++
- From: "Herb Petschauer" <email@hidden>
- Date: Fri, 8 Feb 2008 15:24:56 -0800
#ifdef __cplusplus
#include <iostream>
#endif
[I fight this all the time :-)]
Cheers,
-H.
On 08/02/2008, Philip Bridson <email@hidden> wrote:
> OK thats cool. My #include <iostream> is in a .h file. Just to
> clarify do I need to make the .h file a .mm?
>
> Thanks.
>
> On 8 Feb 2008, at 23:06, John Stiles wrote:
>
> > Any file that #includes <iostream>, either directly or indirectly
> > via another header, needs to be a .cpp or .mm in order to work. .c
> > or .m will not work.
> >
> >
> >
> > Philip Bridson wrote:
> >> Thanks both to Dave and John,
> >>
> >> I am using .mm for my implementation files but it is in the .h
> >> files i am having problems. Do I need to put the entire class,
> >> including deceleration in an .mm file?
> >>
> >> Thanks guys.
> >>
> >> Phil
> >>
> >> On Feb 8, 2008, at 2:51 PM, Philip Bridson wrote:
> >>
> >>
> >>> I am trying to write using Objective-C++. I have read the docs
> >>> and understand what I can and can't do with it but I have a
> >>> really basic problem. When I put #include <iostream> in my header
> >>> files I get an error saying that the file cannot be found? Why is
> >>> this?
> >>>
> >>
> >> Most likely because the compiler doesn't think that it's compiling
> >> an objective-c++ file, which means that it isn't using the C++
> >> header search paths. What extension are you using for your
> >> filename? You have to use .mm to tell the compiler that it's
> >> objective-c++.
> >>
> >>
> >>> Also when creating the file, do I create a C++ file or an Obj-C
> >>> file or doesn't it matter?
> >>>
> >>
> >> It should be a .mm file.
> >>
> >>
> >>> Finally, I want to do some thing like this
> >>>
> >>> #ifdef _MAC_OS_X
> >>> //do some obj-c code
> >>> #endif
> >>>
> >>> #ifdef _WIN32
> >>> //use WIN32 API coding
> >>> #endif
> >>>
> >>
> >> #ifdef __OBJC__
> >> //objc only stuff
> >> #endif
> >>
>
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