Yes I know, but it is an important concept, I thought, should be mentioned here.
Sanju :) On Sat, Aug 20, 2011 at 2:04 AM, sukran dhawan <[email protected]>wrote: > @sanjay: some compilers do support them in c but standard c says its > undefined.its left to compilers to implement the sign extenstion or not > > > On Sat, Aug 20, 2011 at 2:14 PM, Sanjay Rajpal <[email protected]> wrote: > >> There is one more thing about shift operators that I would like to add >> one more thing, if instead of shifting to the left, if you shift to the >> right, in case of negative numbers, '1' leftmost bit will be carried along >> with it. >> >> for e.g. o/p of this code is all Fs : >> >> #include >> <stdio.h> >> >> #include >> <stdlib.h> >> >> int main() >> >> { >> >> int x=-16; >> >> printf( >> "%X\n",x >> 4); >> >> system("pause"); >> >> } >> >> Sanju >> :) >> >> >> >> On Fri, Aug 19, 2011 at 11:28 PM, Vijay Khandar >> <[email protected]>wrote: >> >>> >>> Yes ans is fff0, my mistake......... >>> >>> On Sat, Aug 20, 2011 at 11:56 AM, sukran dhawan >>> <[email protected]>wrote: >>> >>>> check o/p once.it shud be fff0 coz rightmost bits are filled with 0s >>>> >>>> >>>> On Sat, Aug 20, 2011 at 11:56 AM, sukran dhawan <[email protected] >>>> > wrote: >>>> >>>>> i got the answer as fff0 >>>>> >>>>> >>>>> On Sat, Aug 20, 2011 at 11:55 AM, Vijay Khandar < >>>>> [email protected]> wrote: >>>>> >>>>>> Thank you very much..........now i got it............. >>>>>> >>>>>> >>>>>> On Sat, Aug 20, 2011 at 11:51 AM, Ayswarya Srinivasan < >>>>>> [email protected]> wrote: >>>>>> >>>>>>> i guess the output is fff0 >>>>>>> >>>>>>> -1 = 0000 0000 0000 0001 >>>>>>> taking 1's complement >>>>>>> 1111 1111 1111 1110 >>>>>>> taking 2's complement >>>>>>> 1111 1111 1111 1111 >>>>>>> -1<<4 >>>>>>> left shifting 4 bits >>>>>>> 1111 1111 1111 0000 >>>>>>> >>>>>>> %x prints in hexa decimal format >>>>>>> so o/p- f f f 0 >>>>>>> >>>>>>> >>>>>>> On Sat, Aug 20, 2011 at 11:39 AM, Vijay Khandar < >>>>>>> [email protected]> wrote: >>>>>>> >>>>>>>> main() >>>>>>>> { >>>>>>>> printf("\n %x",-1<<4); >>>>>>>> } >>>>>>>> >>>>>>>> o/p-ffff >>>>>>>> >>>>>>>> Plz tell me anyone how this program is working? what is the meaning >>>>>>>> of >>>>>>>> -1<<4, 45>>6,-6<<65 etc.. how this statement is executed..........? >>>>>>>> >>>>>>>> Vijay............ >>>>>>>> >>>>>>>> -- >>>>>>>> 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. >>>>>>>> >>>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> Regards, >>>>>>> Ayswarya S >>>>>>> >>>>>>> -- >>>>>>> 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. >>>> >>> >>> -- >>> 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. > -- 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.
