From: Padraig Brady (Padraig at domain AnteFacto.com)
Date: Thu 02 Aug 2001 - 11:45:16 IST
John P. Looney wrote:
> On Thu, Aug 02, 2001 at 12:06:47AM +0100, Conor Daly mentioned:
>>The first call to strdup() allocates memory to hold the string and sets
>>optionstring to that address. When the second strdup() call passes a
>>*new* address to optionstring, what happens the previously allocated
>>memory that optionstring *was* pointing to?
> No offense Conor, but I strongly recommend you stick to Perl, Shell, TCL
> or Java! Something that'll do your garbage collection for you.
> In the manpage for strdup, there is;
> "Memory for the new string is obtained with mal loc(3), and can
> be freed with free(3)"
> It should read "For crying out loud, free this as soon as you can, or
> you'll be reaching for ElectricFence within a week".
ef doesn't find memleaks, it finds heap corruption.
There are actually 2 really good tools built into glibc for dynamic
1. To find heap corruption of various forms, do:
Note you can do this for any program as it doesn't
need a recompile.
2. To find leaks do:
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