How to compile C++ with rtti enabled?

[PaulVdBergh]

Hi all,

In my code I us

Code: Select all

class Base {};
class Derived : public Base {};
Base* base = new Derived();
Derived* derived = dynamic_cast<Derived*>(base)

. To compile this, I need to enable rtti (Real Time Type Information) in the compiler options. Where can I enable this option (in eclipse IDE) ?

Thanks,
Paul

[kolban]

In your main folder, you will find a file called component.mk. You can edit this and add compiler flags. If I remember correctly:

CFLAGS += ... flags for C compiler
CXXFLAGS += ... flags for C++ compiler

See ... Component Makefiles.

[PaulVdBergh]

thanks for your reply.

However, the -fno-rtti is already set (or is default behaviour), I have to remove it somewhere...
Or is it another flag to enable rtti?

Thanks,
Paul

[PaulVdBergh]

Ok, I added

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CXXFLAGS += -frtti

to the component.mk file and now it compiles. I was confused by only finding -fno-rtti in the gnu gcc documentation, nothing about -frtti documented...