Hello group,

Given this header file:
// X.h
class X
{
    class some_exception {};
    void f() throw(some_exception)

    // etc
};

Which definition is the correct exception specification (standard
conforming)?
// X.cpp
// ...
void X::f() throw(some_exception)
// etc.

or
// ...
void X::f() throw(X::some_exception)
// etc.

In my book they use the first, but it is not accepted by Borland 5.5.1
for
Win32.

Thanks in advance and regards,

Jan van Mansum.


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Jan van Mansum wrote:
>
> Hello group,
>
> Given this header file:
> // X.h
> class X
> {
>     class some_exception {};
>     void f() throw(some_exception)
>
>     // etc
> };
>
> Which definition is the correct exception specification (standard
> conforming)?
> // X.cpp
> // ...
> void X::f() throw(some_exception)
> // etc.
>
> or
> // ...
> void X::f() throw(X::some_exception)
> // etc.
>
> In my book they use the first, but it is not accepted by Borland 5.5.1
> for
> Win32.

The some_exception identifier has class scope, which means that it's in
scope includes the default arguments and the function bodies and
ctor-initializers of all member functions of X. Unfortunately, the
exception specification is part of the declarator, not part of the
function body, and hence not in class scope. It doesn't matter that the
exception specification comes between the default arguments and the
initializers - class scope is turned off between them. Therefore, you
have to qualify some_exception with an X:: in order to use it.

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