I recently changed from Eclipse 3.6 to Eclipse 3.7 , which I am using for C++ development in Ubuntu 11.04 .
With Version 3.6 I had no big troubles, except that I always had some issues with the indexer.
Now with Version 3.7 it begins marking unresolved Types as Errors. Since the indexer seems to dislike me even more, my Eclipse apparently doesn't know types like uint16_t
or size_t
.
In contrary to the displayed errors in the code editor, my compiler has no problems with compiling the code and resolving all symbols and types, so this seems to be a problem of the IDE itself.
Are there any ways to avoid this behavior, because all the red underlines make my code more and more unreadable...?
Update:
Okay with some research and the answer from Dennis I found out that I need to add some paths to
Project Properties/ C/C++ General/ Paths and Symbols
Since I am building for a PowerPC instead of a I32 target, I can not just add /usr/include
.
Instead I needed to add
/usr/powerpc-linux-gnu/libc/usr/include
for all the standard headers (like stdint.h
).
Also I needed:
/usr/lib/gcc/powerpc-linux-gnu/4.5.1/include
for the stdarg.h
.
Now almost all the errors are gone. The only function which still troubles me is printf
from the header stdio.h
. I looked it up and the header file itself lies within the included paths. Still I get an Error which says Function printf could not be resolved
. I want to note again, that these are just errors displayed by Eclipse - The compiling itself works fine.
So this actually throws up 3 questions:
In the project properties the Paths and Symbols
section coheres with the include Paths out of the C++ Build/Settings/C++ Includes
section. This means adding/deleting a path in one of those sections directly affects the entry of the others. Since the C++ Includes
directly coheres with the Compiler I wonder why the compiler can compile correcty ( and finds the headers ) even if they arent passed to him as a path? Is there some kind of standard path GCC uses, which I don't know about?
Why doesn't he find printf
in eclipse? The headerfile stdio.h
is included and it also contains the declaration of printf
- so why does the Eclipse Code Editor tell me that it can't resolve it?
Why are the header files divided so much? I am aware that I need other header files if I am building for another traget (e.g. PowerPC) - But why does the GNU GCC separate those headers in different dirs?
The red underlines for common types are usually caused by not having your standard library in your include path. Look at your includes for your project... they are in the project properties. Ensure that your C++ includes have an entry that matches the C++ standard libs folders for the compiler you are using.