hmmm this is a kinda problem in linux systems.in windows it works properly.
On Sun, Aug 7, 2011 at 8:54 PM, saurabh singh <[email protected]> wrote: > In that case ignore my post as idiotic....But if u dont declare space its > usually placed in a read only memory.....so that might be the > problem,,,,,Once again this can be an idiotic explanation...lets debug... > > On Sun, Aug 7, 2011 at 8:45 PM, Amol Sharma <[email protected]>wrote: > >> i can see the output coming as f ............. >> >> http://ideone.com/pB9ga >> >> but when i ran the same code on ubuntu machine with gcc compiler then it >> is also giving segmentation fault i don' t know why.....this is a >> illustration taken from K & R page no. 132. >> >> i don't think there is any need to allocate memory for the string >> separately we have declared the variable of a structure which contains a >> character pointer....which points to the given string....so where is the >> need of allocating memory ?? >> >> >> -- >> >> >> Amol Sharma >> Third Year Student >> Computer Science and Engineering >> MNNIT Allahabad >> >> >> >> >> On Sun, Aug 7, 2011 at 8:36 PM, sukran dhawan <[email protected]>wrote: >> >>> oh ya i didnt it sorry :) >>> >>> >>> On Sun, Aug 7, 2011 at 8:29 PM, saurabh singh <[email protected]>wrote: >>> >>>> And also u have not allocated any space for str...so even if u do wat >>>> sukran has suggested u wont get an f... >>>> >>>> >>>> On Sun, Aug 7, 2011 at 8:27 PM, sukran dhawan >>>> <[email protected]>wrote: >>>> >>>>> replace ur code with printf("%c",++(p->str)); >>>>> *ptr is a deferenced value.but mere p is a lvalue >>>>> >>>>> >>>>> On Sun, Aug 7, 2011 at 8:23 PM, RAHUL AGARWAL >>>>> <[email protected]>wrote: >>>>> >>>>>> #include<stdio.h> >>>>>> struct abc{ >>>>>> int len; >>>>>> char *str; >>>>>> }*p; >>>>>> main() >>>>>> { >>>>>> struct abc k; >>>>>> k.len=20; >>>>>> k.str="echo is your command"; >>>>>> p=&k; >>>>>> printf("%c",++(*p->str)); >>>>>> } >>>>>> I expect the output of this code to be "f" but it's displays >>>>>> "SEGMENTATION FAULT".. >>>>>> PLZ EXPLAIN.WHY? >>>>>> >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "Algorithm Geeks" group. >>>>>> To post to this group, send email to [email protected]. >>>>>> To unsubscribe from this group, send email to >>>>>> [email protected]. >>>>>> For more options, visit this group at >>>>>> http://groups.google.com/group/algogeeks?hl=en. >>>>>> >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Algorithm Geeks" group. >>>>> To post to this group, send email to [email protected]. >>>>> To unsubscribe from this group, send email to >>>>> [email protected]. >>>>> For more options, visit this group at >>>>> http://groups.google.com/group/algogeeks?hl=en. >>>>> >>>> >>>> >>>> >>>> -- >>>> Saurabh Singh >>>> B.Tech (Computer Science) >>>> MNNIT ALLAHABAD >>>> >>>> >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Algorithm Geeks" group. >>>> To post to this group, send email to [email protected]. >>>> To unsubscribe from this group, send email to >>>> [email protected]. >>>> For more options, visit this group at >>>> http://groups.google.com/group/algogeeks?hl=en. >>>> >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Algorithm Geeks" group. >>> To post to this group, send email to [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]. >>> For more options, visit this group at >>> http://groups.google.com/group/algogeeks?hl=en. >>> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/algogeeks?hl=en. >> > > > > -- > Saurabh Singh > B.Tech (Computer Science) > MNNIT ALLAHABAD > > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
