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Segmentation fault (core dumped)

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From: Amitava D.
Date: Wed 11th Aug 2021, 8:05am
Edited: 25 hours later

"James Hill" <23*9*5*[email protected]*u*e*t*u*a*e*u*a*> wrote:

> "Christopher McDonald" <ch*i*.*c*o*a*[email protected]*a*e*u*a*> wrote:
> > "James Hill" <23*9*5*[email protected]*u*e*t*u*a*e*u*a*> wrote:
> > 
> > > Any suggestions as to why this happened cheers
> > 
> > It's not possible to say, definitively, but nearly all segmentation violations are the result 
> > of attempting to access memory other than what you program 'owns', or in a manner inconsistent 
> > with the way it's been declared.
> > 
> > As you're working on the credit card problem, examining individual characters in a string (an 
> > array of characters), my guess is that you're attempting to access somewhere 'outside' of the 
> > memory allocated for that string.  Check the indices you're using to access the array's 
> > characters.
> It appears there is something wrong with this line of code 
> int numbers = strlen(argv[2]);
> but i am not sure what, this is in the main function and i am trying to get length of the char* 
> argv[2].

argv[0] is the name of the executable, argv[1]... the other command line arguments. I think you are not passing enough command line arguments. You must  pass least 3 strings for argv[2] to be defined. 

Related articles

Segmentation fault (core dumped) (all 7) RSS
├─ original   Mon 9th Aug 2021, 12:55pm, James H.
├─ reply 1   Mon 9th Aug 2021, 1:04pm, Christopher M.
├─ reply 2   Tue 10th Aug 2021, 10:43am, James H.  O.P.
├─ reply 3   Tue 10th Aug 2021, 1:42pm, James H.  O.P.
├─ reply 4   Tue 10th Aug 2021, 2:50pm, Christopher M.
├─ reply 5   Tue 10th Aug 2021, 2:52pm, Christopher M.
└─ THIS   Wed 11th Aug 2021, 8:05am, Amitava D.
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