Hello,
I am facing a problem in including a C++ header file like vector, set etc. in a objective-c++ header.
Lets suppose, I am having 2 files: abc.h abc.mm
Now, when I try to include the C++ header in abc.mm file, no build error is coming. But when I try to include the C++ header in abc.h file, it is throwing build error. Build error is: Header not found.
How to resolve this error? Any suggestion will be helpful.
Thanks Asheesh
Into what other file are you trying to include your abc.h ?
You can’t include it in an Obkective-C .m file, if it includes a C++ header.
(You might want to use the extension .hh to distinguish between obj-C and obj-C++ headers.)
I am including this header in only objective c++ file i.e., .mm file. But here the problem is not in importing the abc.h header file in other .mm file.
The problem lies in the abc.h header itself, if I am writing below in abc.h :
#include<set>
#include<vector>
Then on compilation of abc.h header file, it is throwing error that set and vector are not found.
You might want to use the extension .hh to distinguish between Obj-C and Obj-C++ headers.
Or, if you want one header to be usable from both [Objective-]C++ and [Objective-]C, add a guard:
#if defined(__cplusplus)
… do C++ specific stuff …
#endif
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on compilation of abc.h header file
try renaming it to .hh.
I have tried using .hh file extension but facing the same error.