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RE: Advice on extending gdb


From: amit.chaudhuri
Subject: RE: Advice on extending gdb
Date: Thu, 13 Nov 2014 09:14:14 +0000

Hi Yuanhui,

Useful - thank you.

Supplementary: are there recommended pretty printer resources for use with 
boost (and other commonly used third party) libraries? The wiki link covers STL 
and how to write your own but I don't see pointers to many other contributions.

A
________________________________________
From: asmwarrior address@hidden
Sent: 13 November 2014 08:08
To: Chaudhuri,A,Amit,JRM13 R; address@hidden
Subject: Re: Advice on extending gdb

On 2014-11-13 15:24, address@hidden wrote:
> Hi,
>
> Just how do parameters work with user defined commands?
>
> I recently saw an example in which someone prints the contents of std::vector 
> (and other container types) using user defined commands:
>
>       http://www.yolinux.com/TUTORIALS/src/dbinit_stl_views-1.03.txt
>
> Very nice.
>
> <snip>
>
> # apologies for loss of indentation
>
> define pvector
> if $argc == 0
> help pvector
> else
> set $size = $arg0._M_impl._M_finish - $arg0._M_impl._M_start
> set $capacity = $arg0._M_impl._M_end_of_storage - $arg0._M_impl._M_start
> set $size_max = $size - 1
> end
>
> </snip>

Hi, amit, use those command to show the content of the std::vector is quite 
outdated, I strongly suggest you to use the more modern gdb's python pretty 
printer, see: https://sourceware.org/gdb/wiki/STLSupport and 
https://sourceware.org/gdb/onlinedocs/gdb/Pretty-Printing.html

Yuanhui Zhang




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