@Raj, Sorry for the confusion
yes, you are right that 1st one is giving warning/error though for 2nd case int i=5; const int *ptr=&i; *ptr++; i am nt getting any error/warning (gcc) and i remains 5 but int i=5; const int *ptr=&i; (*ptr)++; is giving error Mohit Ranjan On Tue, Jun 8, 2010 at 9:06 PM, Raj N <[email protected]> wrote: > Actually the first statement i gave const int i=5; int *ptr=&i is itself > giving an error on gcc and a warning on borland. We have to modify it as > const int *ptr=&i otherwise it gives illegal pointer conversion error. > > > On Tue, Jun 8, 2010 at 12:11 PM, divya jain <[email protected]>wrote: > >> i think both statements shd give error. as u r trying to change int to >> const int in 2 and const int to int in 1.. >> >> >> On 7 June 2010 19:59, mohit ranjan <[email protected]> wrote: >> >>> @Raj, >>> >>> no they are not same >>> >>> >>> case 1: i is const >>> case 2: ptr is const >>> >>> and whatever is const cann't be modified >>> >>> Mohit Ranjan >>> >>> >>> On Mon, Jun 7, 2010 at 3:01 PM, Raj N <[email protected]> wrote: >>> >>>> Can someone tell me the difference between >>>> 1) const int i=5; 2) int i=5; >>>> int *ptr=&i; const int >>>> *ptr=&i; >>>> >>>> In the first case i can be modified via ptr i.e *ptr++ is valid. In >>>> the second case *ptr++ is illegal. Why is that so? Aren't they same? >>>> >>>> -- >>>> 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]<algogeeks%[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]<algogeeks%[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]<algogeeks%[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]<algogeeks%[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.
