Re: gdb VS c++ template instances
On 6/11/2010 10:24 AM, Jim King wrote:
You have not told what exactly is abnormal. If it is justgdbshowing b
before a, then this might well be an abnormality ofgdbitself.
Actually, gdb tells the truth. And the template class has been
constructed by Temp<...>(a, b). When I acquire member a through
getA(), it returns the value of b instead. It leads to crash
consequently. That's the very abnormal. I didn't see any memory
corruption anyway.
I am just curious that if you met such a weird thing, how could you
do?
I would take the source code (only the source code) to a clean machine
and rebuilt everything from scratch.
Do you have any place in the code where 'getA()' behaves as expected? I
mean, in the same application. If you do, you need to put a breakpoint
on that call and on the call that doesn't behave correctly.
If you can, try stepping into 'getA()' call and (a) see the assembly and
understand what offset the code uses to return the value, (b) verify
that you're in the same module - the EIP register value has to be the
same. If EIP has different values, you're in two different 'getA'
functions. Find out where the bad one comes from (by examining the map
file the linker produces, for instance), and remove it.
V
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