const what () const throw

[EasyVoip]

Hello,

I have a hard time understanding what is going on here. This looks
like a normal function definition, but what const throw is doing on
the same line?

Thanks for your help!!!!

const char * what () const throw ()
{
return(std::invalid_argument::what());
};

[red floyd]

Ea******@gmail.com wrote:

Hello,

I have a hard time understanding what is going on here. This looks
like a normal function definition, but what const throw is doing on
the same line?

Thanks for your help!!!!

const char * what () const throw ()
{
return(std::invalid_argument::what());
};

It's a member function of an exception class. The const after the
parens says that it's a const member function (can be called on a const
object), and the throw() is an exception specification indicating that
it is guaranteed not to throw any exceptions.

[Serge]

Thanks
On Oct 19, 2:00 pm, red floyd <[e-mail]:

[e-mail] wrote:

Hello,

I have a hard time understanding what is going on here. This looks
like a normal function definition, but what const throw is doing on
the same line?

Thanks for your help!!!!

const char * what () const throw ()
{
return(std::invalid_argument::what());
};

It's a member function of an exception class. The const after the
parens says that it's a const member function (can be called on a const
object), and the throw() is an exception specification indicating that
it is guaranteed not to throw any exceptions.