Re: Boost scoped_ptr design question
On Dec 15, 7:35 pm, Leigh Johnston <le...@i42.co.uk> wrote:
On 15/12/2010 19:29, Balog Pal wrote:
"Leigh Johnston" <le...@i42.co.uk>
I throw std::logic_error. I do not catch std::logic_error. The program
aborts.
And that is better than direct call to terminate() on the spot how?
It is no better and no worse; it does potentially provide more
information:
Or less. On Unix systems, if you call abort, you get a core
dump, and can do a post-mortem. On Windows systems, you can
configure the system (I think) so that abort pops you into the
debugger (not much use if your code is running on a client's
machine, I know). In either case, the stack has not been
unwound, and you can look at any number of stack variables. If
you throw, you loose, or might loose, stack context.
There is no one universal solution. Globally, I'd vote for
abort() in most situations, but in my current software, we throw
(and use compiler options to convert hardware traps, like
illegal accesses, to C++ exceptions). In this particular case,
throwing is the right solution, even if it isn't in most cases.
--
James Kanze