Eclipse CDT highlights static_assert(cond) as syntax error

Question

Eclipse CDT complains that the following is syntactically wrong, although it compiles fine with g++-7 -std=c++17:

static_assert(std::is_pod<T>::value);

while it doesn't complain on the following:

static_assert(std::is_pod<T>::value, "not a POD");

I realize that the prior to C++17 static_assert required a second message parameter. I'm curious if Eclipse could be configured to recognize the first form? (A workaround is of course to use the C++11 form.)

On a side note, g++ 7.1 is OK with both forms, even with -std=c++11.

Thanks!

Answer 1

Eclipse CDT does not yet have any C++17 support, so it does not recognize this form of static_assert.

You could work around this by defining the following macro in your code:

#define static_assert(cond) static_assert(cond, "")

If your compiler objects to this, you can condition it on the __CDT_PARSER__ macro, so that only CDT sees it, not your compiler:

#ifdef __CDT_PARSER__
  #define static_assert(cond) static_assert(cond, "")
#endif

If you prefer to apply this workaround without modifying your source files, you could also define this macro in Project Properties | C/C++ General | Preprocessor Include Paths, Macros etc. | GNU C++ | CDT User Setting Entries.