Applies to current release version.

Following produces "test .hpp". But it should be "test.hpp"

#include <iostream>

#define STRINGIZE(x) DO_STRINGIZE(x)
#define DO_STRINGIZE(x) #x
#define TRANSFORM(x) STRINGIZE(x.hpp)

int main() {
std::cout << TRANSFORM(test) << std::endl;
}

A work around is:

#define TRANSFORM(x) STRINGIZE(x##.hpp)

Richard

I've seen this before, and in my opinion that effect is not supported by the Standard. The ## token concatenation operator should be used when trying to concatenate tokens.

"Richard Grant" <fractal@clark.net> wrote in message news:b5us29$1ff5$1@digitaldaemon.com...
> Applies to current release version.
>
> Following produces "test .hpp". But it should be "test.hpp"
>
> #include <iostream>
>
> #define STRINGIZE(x) DO_STRINGIZE(x)
> #define DO_STRINGIZE(x) #x
> #define TRANSFORM(x) STRINGIZE(x.hpp)
>
> int main() {
> std::cout << TRANSFORM(test) << std::endl;
> }
>
> A work around is:
>
> #define TRANSFORM(x) STRINGIZE(x##.hpp)
>
> Richard
>
>