lalit u r wrong On Thu, Jun 16, 2011 at 1:44 PM, LALIT SHARMA <[email protected]> wrote:
> ++*p++ > ==> > ++(*p++) , > increments the value stored at p , and also increments p . > > > > > On Thu, Jun 16, 2011 at 1:10 PM, sunny agrawal <[email protected]>wrote: > >> The place where strict constness is not enforced is with character >> array literals. You can say >> char* cp = "howdy"; >> and the compiler will accept it without complaint. This is >> technically an error because a character array literal (“howdy” in >> this case) is created by the compiler as a constant character array, >> and the result of the quoted character array is its starting address in >> memory. Modifying any of the characters in the array is a runtime >> error, although not all compilers enforce this correctly. >> So character array literals are actually constant character arrays. Of >> course, the compiler lets you get away with treating them as nonconst >> because there’s so much existing C code that relies on this. >> However, if you try to change the values in a character array literal, >> the behavior is undefined, although it will probably work on many >> machines. >> If you want to be able to modify the string, put it in an array: >> char cp[] = "howdy"; >> Since compilers often don’t enforce the difference you won’t be >> reminded to use this latter form and so the point becomes rather >> subtle. >> >> >> On Thu, Jun 16, 2011 at 12:59 PM, amit kumar <[email protected]>wrote: >> >>> //kk >>> //In place of >>> >>> char *p="hai friends",*p1; >>> if i declare as >>> char p[]="hai friends"; >>> char *p1; >>> //then ?? >>> >>> >>> On Thu, Jun 16, 2011 at 8:16 AM, DIPANKAR DUTTA < >>> [email protected]> wrote: >>> >>>> It's ok.. >>>> >>>> char *p="hai friends"...not correct.... >>>> >>>> bcz you did allocate memory for that string but assiging poiter to the >>>> base address.. from where gcc will get the bse address of that string when >>>> u >>>> r not actually allocate memory for it? thus it generate SIGSEG signal and >>>> give invalid memory address...ie. segmentation fault >>>> use malloc or use >>>> char p[]=".."; >>>> >>>> >>>> >>>> >>>> >>>> >>>> On Thu, Jun 16, 2011 at 4:49 AM, DK <[email protected]> wrote: >>>> >>>>> Gives me a SEGFAULT on gcc. >>>>> Probably due to undefined behaviour. >>>>> >>>>> -- >>>>> DK >>>>> >>>>> http://twitter.com/divyekapoor >>>>> http://www.divye.in >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Algorithm Geeks" group. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msg/algogeeks/-/QVAjKMQiWvoJ. >>>>> >>>>> 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. >>>>> >>>> >>>> >>>> >>>> -- >>>> Thanks and Regards, >>>> ------------------------------ >>>> *DIPANKAR DUTTA* >>>> Visiting Research Scholar >>>> Dept of Computing, >>>> Macquarie University, Sydney, Australia >>>> ph.no-+61 2 98509079 ( Mon-Fri 10:15-7:00) Sydney time >>>> email: [email protected] >>>> >>>> >>>> >>>> -- >>>> 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. >>> >> >> >> >> -- >> Sunny Aggrawal >> B-Tech IV year,CSI >> Indian Institute Of Technology,Roorkee >> >> >> -- >> 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. >> > > > > -- > Lalit Kishore Sharma, > > IIIT Allahabad (Amethi Capmus), > 6th Sem. > > -- > 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.
