that means i was right... On Sun, Aug 7, 2011 at 8:57 PM, sukran dhawan <sukrandha...@gmail.com>wrote:
> 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 <saurab...@gmail.com> 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 <amolsharm...@gmail.com>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 <sukrandha...@gmail.com>wrote: >>> >>>> oh ya i didnt it sorry :) >>>> >>>> >>>> On Sun, Aug 7, 2011 at 8:29 PM, saurabh singh <saurab...@gmail.com>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 >>>>> <sukrandha...@gmail.com>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 >>>>>> <algogeek...@gmail.com>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 algogeeks@googlegroups.com. >>>>>>> To unsubscribe from this group, send email to >>>>>>> algogeeks+unsubscr...@googlegroups.com. >>>>>>> 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 algogeeks@googlegroups.com. >>>>>> To unsubscribe from this group, send email to >>>>>> algogeeks+unsubscr...@googlegroups.com. >>>>>> 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 algogeeks@googlegroups.com. >>>>> To unsubscribe from this group, send email to >>>>> algogeeks+unsubscr...@googlegroups.com. >>>>> 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 algogeeks@googlegroups.com. >>>> To unsubscribe from this group, send email to >>>> algogeeks+unsubscr...@googlegroups.com. >>>> 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 algogeeks@googlegroups.com. >>> To unsubscribe from this group, send email to >>> algogeeks+unsubscr...@googlegroups.com. >>> 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 algogeeks@googlegroups.com. >> To unsubscribe from this group, send email to >> algogeeks+unsubscr...@googlegroups.com. >> 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 algogeeks@googlegroups.com. > To unsubscribe from this group, send email to > algogeeks+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- RAHUL AGARWAL B.tech 3rd year CSE MNNIT Allahabad -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. 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