Alternative to __FILE__/__LINE__

[Marc Glisse]

On Sun, 4 Mar 2018, François Dumont wrote:

> Â Â Â  Debug mode is using __FILE__/__LINE__ to show where the assertion took 
> place. So assertion looks like this:
>
> /home/fdt/dev/gcc/build/x86_64-pc-linux-gnu/libstdc++-v3/include/debug/deque:175:
> Error: function requires a valid iterator range [__first, __last).
>
> Â Â Â  But IMHO a smarter information would be to provide the file:line in the 
> source code that generated this assertion so that users could more easily go 
> to the faulty code.

How about printing a backtrace then? Though at some point the user might 
want to start a debugger to get more information.

-- 
Marc Glisse