Re: Customizing uncaught exception messages

[Joel Dice <dicej at mailsnare dot net>]

On Thu, 15 May 2008, Yang Zhang wrote:

> Hi, is it possible to get more informative error messages for uncaught 
> exceptions?  For instance, I'm interested in getting Java-like tracebacks 
> with file and line numbers.  Currently what I see is far from that, e.g.:
>
> terminate called after throwing an instance of 'std::logic_error'
>  what():  basic_string::_S_construct NULL not valid
>
> Is there any way to hook into the exception handling mechanisms and produce 
> such a traceback?  If the solution is platform-dependent, I am using 
> GNU/Linux with gcc 4.2.3.

In cases where the exception is thrown by your own code, you may be able 
to use backtrace() and backtrace_symbols(), declared in execinfo.h, to 
capture the stack trace before unwinding.  Then use addr2line (a command 
line utility included in binutils) to get the line numbers.