Re: What the program would behave if an exception is thrown in an environment with exception disabled

From:

apm35@student.open.ac.uk

Newsgroups:

comp.lang.c++.moderated

Date:

Fri, 28 Dec 2007 13:46:48 CST

Message-ID:

<25f47357-4cc2-49c2-9ab5-d2df3d522ec4@e10g2000prf.googlegroups.com>

On 28 Dec, 15:25, int...@gmail.com wrote:

On 27 Dec, 13:01, cppcraze <cppcr...@gmail.com> wrote:

Hi Guys,

I work in an Embeded community in which exception has been disabled,
though I recommend using exception, that is out of my control. Now I
have a question: in such a scenario (I mean exception has been
disabled), what if some classes defined by C++ library throw some
exceptions, for example, std::string will handle error and throw
exceptions every time the error happens. Since exception is disabled
in our program, there's no try/catch statements in our program. I want
to know what will happen if exception is thrown in this suitation.

It's implementation-specific. Consult the documentation of the C++
implementation you are using.
The safest thing to do in general is to assume that any code that may
throw results in undefined behavior at run-time.

Indeed. One example of what may happen though is with STLPort, which
calls abort if it would have thrown an exception but exceptions are
turned off. This will normally cause a core dump.

Regards,

Andrew Marlow

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