is there any circumstance under which valid C code will not compile properly using g++

c, c++, compiler-construction, g++, gcc

Solution

C is not a subset of C++.

Try:

foo.c

int main() {
    int class = 0;
    return 0;
}

Anyway have fun here: Where is C not a subset of C++?

Problem

Possible Duplicate: “C subset of C++” -> Where not ? examples? I am aware that C is a subset of C++ (i.e. there does not exist valid C code that is not valid C++ code). My question is whether `g++` is completely compatible with all C code. For example, will ``` g++ -o testing test.c ``` produce an identical binary to ``` gcc -o testing test.c ``` in all circumstances? More specifically, if they do not always create identical binaries, is there any reason that that could be a problem? Is it safe to always use `g++` if I'm not sure about the code?

Original source

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