I have the following scenario:
There are two components one is written in C++11 the other in C++98. Both are compiled from scratch using the same GCC 4.9. One uses the implicit default --std=gnu++98
the other explicitly sets --std=c++11
.
Even after doing some research I could not completely answer the question if this could cause issues.
The GCC wiki says:
The C++98 language is ABI-compatible with the C++11 language, but several places in the library break compatibility. This makes it dangerous to link C++98 objects with C++11 objects. If you can recompile your code in matching versions of the language, you should do that.
This suggest that problems are to be expected.
So the questions are:
-
Are there issues if the two components built with
--std=gnu++98
and--std=c++11
are linked together, even tough they use samelibstdc++
and are built with the same compiler (GCC 4.9)? -
Does Dual ABI support form GCC 5.1 have an influence in that case?
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