Preprocessor operator ||

[o1vk4iN6]

I seem to be having some troubles using the || operator with MSVC compiler.

#define RELEASE 2000

#if RELEASE < 1000 || RELEASE > 2000
#error "Unsupported"
#endif 

The error is called in this case.

Also I've read '#error' is deprecated, what is the proper syntax if anyone knows?

[Peter87]

Strange. The error is not triggered when I test your code with GCC.

Where have you heard that #error is deprecated? Maybe it's just a misunderstanding.

[o1vk4iN6]

I've read somewhere that #error was deprecated in C++ can't quite recall where it was.

It is strange, even though the above code doesn't appear to work the way I intend it to, this does:

#define RELEASE 2000

#if RELEASE < 1000
#elif RELEASE > 2000
#else
     #error "Unsupported"
#endif 

Which is why I'm curious to know if Microsoft doesn't support '||' in preprocessor if someone has a definite answer I can't seem to find any documentation regarding the matter.

[helios]

Could it be RELEASE is already defined? Try undefining it first.