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Re: 2nd try GDB and c++ template class
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Re: 2nd try GDB and c++ template class


  • Subject: Re: 2nd try GDB and c++ template class
  • From: Wade Tregaskis <email@hidden>
  • Date: Thu, 4 Nov 2004 18:44:31 +1100

The problem that i have is that if the class get template(template<class T>) I can't follow the pointer any more. The little arrow does not appear anymore and it just show me the hex value of the pointer. It also classified the type as a struct, for example; if the class is not template the arrow appear and the type is Node *, in the other hand, if the class is template, the arrow disappear, I get just the hex value of the pointer and the type change to struct Node<int> *

This appears to be a limitation/bug of gdb - I've had the same problem on various versions of gcc 3.x on various platforms... there's no solution that I know of; I usually find a better way to debug* or use examine ('x') to look at the raw data (if possible).


Gdb is very bad at most C++ stuff, particularly anything that involves templates. I don't know of any alternative, unfortunately. I usually just put a lot of debugging stuff into my code... invariably that saves me most of the pain of having to work with gdb, and usually gets things solved faster (since it's a more pre-emptive sort of debugging, so you usually can collect a lot more runtime information prior to whatever point you're at).

Wade Tregaskis (AIM, Yahoo & Skype: wadetregaskis, ICQ: 40056898, MSN & email: email@hidden, Jabber: email@hidden
-- Sed quis custodiet ipsos custodes?


* = Even though XCode uses gdb, it still manages to do a lot of things gdb apparently can't... I think it must do a fair bit of work itself in addition to whatever gdb does, particularly regarding ObjC stuff.

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References: 
 >2nd try GDB and c++ template class (From: Luis E Flores <email@hidden>)
 >Re: 2nd try GDB and c++ template class (From: Andy Wiese <email@hidden>)

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