“Request for member”A” in “B” is of non-class type ”C”

[Zlatomir]

That error is because t1 declared: Test t1(); is not an Test instance.
If you use Test t1; //without () it would work.

LE: stampede was faster
The empty parentheses for default constructor can be used when you create objects on the heap, so:

Test *ptr = new Test(); //is ok
//so is this
Test *ptr = new Test; //ok too

Test *ptr = new Test(); //is ok
//so is this
Test *ptr = new Test; //ok too

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Isn't C++ a beautiful language?

[DanH]

Yeah, it's a quirk of the language. Because of the (weird) order that C/C++ evaluates and assigns type values, the "Test t1();" statement is interpreted as a call, not a declaration.

It's just one of those "gotchas" that one learns of (sometimes several times) over the years.

[Zlatomir]

@DanH: trying to call a function without definition will trigger a linker error about some unresolved external, so the is interpreted by the compiler as a function declaration, not as a function call.

[DanH]

Whatever -- you don't get what you want, and usually get a compile error.

[dexli]

Thanks for the hint without the braces after the call.