Solaris Developer Quiz April 4, 2007

Lippman

Is the binary code compiled by GCC compatible with code compiled with Sun Studio compilers?
a) Yes
b) No
c) Yes and No
d) 42

The correct answer is c.

'Yes,' C code compiled by the gcc Compiler is binary-compatible with C code compiled by the Sun C compiler. You should be able to mix gcc and Sun C binaries in the same program without a problem.

'No,' C++ code compiled by g++ is not binary compatible with C++ code compiled by Sun C++. However, if the g++ code is completely self-contained, that should be OK. "Completely self-contained" means all of the following:
   1. The g++ code presents a pure C interface; only functions, types, and objects acceptable to a standard C compiler are in the interface.
   2. The g++ code does not throw an exception that could pass through non-g++ code. It is best if the g++ code does not use any exceptions.
   3. The g++ code does not use the predefined iostreams cin, cout, cerr, clog (or the wide-stream equivalents).

While '42' is, as we all know, the answer to everything, unfortunately, it is not the answer to this question.


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