When compiling the following piece of code, using "g++ -v -save-temps a.cpp -std=c++0x", the preprocessor fails to parse it correctly. This causes the compilation to fail.

#include <cstdio>
#define log(a) printf("%s\n", a)
int main() {
        log(R"delimiter(
                Multi
                line
                raw
                string
        )delimiter");
}

The -save-temps output is attached.