How to require a semicolon after a macro

I use enum {} at the end of a macro to force a semicolon.

This works both inside and outside classes and functions.

This approach does not pollute any namespaces and does not generate any code.

Similar to @thomas-eding 's solution, you can put static_assert(true, "") at the end of a macro to require a semicolon.

This works both inside and outside classes and functions.

And it does not pollute any namespaces and does not generate any code.

You can add a function declaration at the end of the macro:

#define TESTSUITE(name)  \
//...                    \
void ANONYMOUS_FUNCTION()

Demo

The function name doesn't even have to be different across different TESTSUITE macros. It's sufficient if it's just not used anywhere else so it doesn't participate in any overloading.