U++ forum: Welcome to the forum

Status & Roadmap

Authors & License

Funding Ultimate++

Search on this site

Search in forums

Home » Community » Coffee corner » crush of the program

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Return to the default flat view

Create a new topic

Submit Reply

Re: crush of the program [message #8775 is a reply to message #8768]

Thu, 29 March 2007 20:24

Novo is currently offline

Novo
Messages: 1358
Registered: December 2006

Ultimate Contributor

luzr wrote on Thu, 29 March 2007 11:49

Novo wrote on Thu, 29 March 2007 10:51

By default valgrind runs memcheck (valgrind --tool=memcheck).
cachegrind is a part of valgrind starting from version 3.2 I believe.

Not sure what "memcheck" does, just wanted to say U++ has quite strong heap checking in debug mode Smile

Smile

All blocks have safety sentinels (overwrite is reported), free blocks memory is filled with specific pattern and tested for writes when allocating again and leaks are not tolerated (error at the program exit).

Mirek

Quote:

Memcheck can detect if your program:

* Accesses memory it shouldn't (areas not yet allocated, areas that have been freed, areas past the end of heap blocks, inaccessible areas of the stack).
* Uses uninitialised values in dangerous ways.
* Leaks memory.
* Does bad frees of heap blocks (double frees, mismatched frees).
* Passes overlapping source and destination memory blocks to memcpy() and related functions.

That can be done in Debug and Release mode.
I recall somebody's messages about spending dozen of hours looking for a bug. Wink

Wink

With valgrind that can be done in few minutes.

Regards,
Novo

[Updated on: Wed, 04 April 2007 03:11]

Report message to a moderator

Send a private message to this user

[Message index]

		crush of the program By: forlano on Tue, 27 February 2007 21:50
		Re: crush of the program By: mr_ped on Tue, 27 February 2007 23:09
		Re: crush of the program By: exolon on Wed, 28 February 2007 01:48
		Re: crush of the program By: forlano on Wed, 28 February 2007 02:53
		Re: crush of the program By: mirek on Wed, 28 February 2007 09:27
		Re: crush of the program By: forlano on Wed, 28 February 2007 15:55
		Re: crush of the program By: mirek on Wed, 28 February 2007 09:25
		Re: crush of the program By: forlano on Thu, 22 March 2007 14:03
		Re: crush of the program By: mirek on Thu, 22 March 2007 17:22
		Re: crush of the program By: forlano on Mon, 28 May 2007 18:26
		Re: crush of the program By: forlano on Tue, 29 May 2007 23:38
		Re: crush of the program By: mr_ped on Wed, 28 February 2007 11:55
		Re: crush of the program By: mirek on Wed, 28 February 2007 12:06
		Re: crush of the program By: exolon on Wed, 28 March 2007 21:58
		Re: crush of the program By: Novo on Wed, 28 March 2007 22:08
		Re: crush of the program By: zsolt on Wed, 28 March 2007 23:45
		Re: crush of the program By: Novo on Thu, 29 March 2007 16:51
		Re: crush of the program By: mirek on Thu, 29 March 2007 17:49
		Re: crush of the program By: Novo on Thu, 29 March 2007 20:24
		Re: crush of the program By: forlano on Wed, 28 March 2007 23:15
		Re: crush of the program By: exolon on Wed, 28 March 2007 22:20

Previous Topic:	First impressions
Next Topic:	Is it allowed ...

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

PDF

]

Current Time: Thu May 09 19:49:47 CEST 2024

Total time taken to generate the page: 0.02206 seconds