On Fri, 28 Nov 2008, Samuel Tardieu wrote:
> I wrote "this C++ code". It means that you must compile it with g++ (otherwise > it is valid C code), as well as link it with g++ (without deriving too much, > let me just say that g++ called in link mode does a bit more than linking -- > it takes care of the exceptions, constructors and destructors as well through > another program called collect2). Yes, I understood that. `extern "C"' wouldn't be necessary if it were C. Compiling and linking worked with `g++' both ways, with or without declaring `exit' to have `extern "C"', whether I compiled and linked in a single step or separately. I'm sorry if I'm being obtuse. What are you doing differently and what error message is one supposed to get? > > | It seems to me that if a compiler doesn't mangle any "unqualified" names, > | i.e., ones declared outside of a namespace or a class, it should be > possible to link > | with the object file in which they are defined without the linker having to > | do anything special. However, it's been a long time since I read > | anything about this subject and this may be naive. > > The linker does nothing special wrt mangled names. Only the compiler does. Yes, that makes sense. I hadn't thought it through. Thanks again. Laurence _______________________________________________ help-bison@gnu.org http://lists.gnu.org/mailman/listinfo/help-bison
