[Rivet] segfault while declaring arrays of histograms

[Holger Schulz]

Hi,

sure!

You could append your source code and I can have a look. In 99 percent 
of the
cases it's something like asking for the leading item of a collection 
via [0] without
checking if anything survived the cuts :)

Holger


On 05/08/16 13:44, Raghav Kunnawalkam Elayavalli wrote:
> Hi David and Holger,
>
> yeah ive used gdb long ago with root, but could you help me with using 
> gdb with rivet now?
> As it happens, im struggling with another crazy run-time seg fault 
> (which ive had two of my colleagues look at without any success in 
> debugging it) at the moment and would really appreciate any help.
>
> Cheers
> Raghav
>> On Aug 4, 2016, at 4:04 PM, David Bjergaard 
>> <david.bjergaard at gmail.com <mailto:david.bjergaard at gmail.com>> wrote:
>>
>> Hi Raghav,
>>
>> It looks like Holger found the typo. A few tips:
>> 1. C++ is multi-paradigm, but I tend to prefer using C++ data 
>> structures over C since they tend to throw meaningful exceptions 
>> where C just blows up
>> 2. Gdb is your friend when it comes to debugging segfaults
>>
>> Shameless plug for a resource I wrote:
>> www.phy.duke.edu/~dmb60/the-guide 
>> <http://www.phy.duke.edu/%7Edmb60/the-guide>
>>
>> There are links to lots of HEP software resources and, specific to 
>> you gdb, tutorials.
>>
>> Good luck!
>>
>>     David
>>
>> On Aug 4, 2016, at 9:55 AM, Holger Schulz <holger.schulz at durham.ac.uk 
>> <mailto:holger.schulz at durham.ac.uk>> wrote:
>>
>>> Hi Raghav,
>>>
>>> that looks roughly correct to me, maybe this is the culprit:
>>>
>>>
>>> On 04/08/16 14:08, Raghav Kunnawalkam Elayavalli wrote:
>>>> for(int j = 0; j<_NJES_pt; ++i){
>>> ++j  maybe?
>>>
>>> Holger
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>

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