Create test type for compiling or failing to compile

[wawiesel]

This is difficult but a very nice capability.

In C++, it is desirable to verify in unit tests that certain situations lead to a compiler error, e.g.

• CTOR is private (direct construction not allowed)
• assignment not permitted
• copy CTOR disabled
• etc.

The best way to do this seems to me to create a CMake test that tests the compiler itself.

t123TestCompiler( <filename> POSITIVE  ) 
t123TestCompiler( <filename> NEGATIVE )

One of the tricky parts is different compilers giving different error messages. Perhaps a line number match is enough?

[wawiesel]

Now available.