Discussion :: Bitwise Operators - Find Output of Program (Q.No.6)
| Neetu said: (Aug 21, 2010) | |
| 4 = 0100 now shift to right 1 time. It will become 0010 = 2. 8 = 1000 now shift to right 1 time. It will become 0100 = 4. Rest is garbage, so the answer is C. |
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| Sundar said: (Mar 17, 2011) | |
| I got the following outputs: In GCC (32-bit platform): 2 >> 4 134513662 >> 134513904 Turbo c (16 bit platorm): 2 >> 4 0 >> 344 Therefore, 2 >> 4 garbagevalue >> garbagevalue is the correct answer. |
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| Divya S said: (May 26, 2011) | |
| Yes neetu understood thanks | |
| Maruti Shrivastava said: (Jul 6, 2011) | |
| Very thanks to you neetu. | |
| Mukesh said: (Jul 16, 2011) | |
| 2 >> 4 rest depends on the compiler.. | |
| Deepika said: (Aug 6, 2011) | |
| Thanks Neetu..... | |
| Maya said: (Aug 13, 2011) | |
| Why shouLd we right shift to one place? | |
| Reenu said: (Aug 22, 2011) | |
| @maya. As the number gave after >> is 1..we have right shift one place..If that number is 2(>> 2)then we have to right shift 2 place..It depends on the number given after >>. |
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| Nizamuddin said: (Nov 4, 2011) | |
| void main() { int x[2][2][2]={1,2,3,4,5,6,7,8} int *p; p=&x[2][2][2]; printf("%d",*p); } ans is 0 (zero) why |
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| Anusha said: (Nov 24, 2011) | |
| Why do we get garbage values can you explain? | |
| Jayesh said: (Feb 7, 2012) | |
| What is GCC 32 bit platform, please explain me. | |
| Teja said: (May 3, 2012) | |
| @Anusha, Given code is #include<stdio.h> int main() { printf("%d >> %d %d >> %d\n", 4 >> 1, 8 >> 1); return 0; } First we got the output from 4>>1,8>>1 is 2,4 directly. But in printf() four %d's are given.so 2,4 assigns to first two %d's and the remaining two %d's will show the garbage values. Got it? |
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| Bhagyshri said: (Jun 3, 2012) | |
| gcc 32 is compiler in unix o.s. | |
| Gowda said: (Jun 29, 2012) | |
| Here is my code. #include<stdio.h> int main () { int i ; for (i=0;i<3;++i) printf ("%d\n", i) ; return 0; } I am getting output as 0 1 2. Can any one explain why am not getting from 1 as I used pre-increment operator. |
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| Maddy said: (Jul 20, 2012) | |
| Please make the condition as for(i=1;i<=3;i++) , pre/post increment has no significance here. | |
| Chinnu said: (Aug 23, 2012) | |
| What is mean by rest is garbage. ? | |
| Balayogi said: (Aug 25, 2012) | |
| Post or pre increments gives the same result when they are free,like i++ and ++i(i.e.without assignment) | |
| Kuljeet said: (Aug 27, 2012) | |
| @Chinnu- Rest is garbage means, the other %d's in the printf fuction will print any arbitrary value.. thats known as garbage value.. | |
| Mayur said: (Nov 15, 2012) | |
| 4 = 0100 now shift to right 1 time. It will become 0010 = 2. Then << is print on screen (becoz every special symbol or character print as well as written in double cotation " " ) Then it will print 8 = 1000 now shift to right 1 time. It will become 0100 = 4. Then print Garbage value >> Garbage value So, Output will 2 >> 4 Garbage value >> Garbage value |
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| Sachin said: (Nov 30, 2014) | |
| @Gowda. Arrange your number in three arrays see there is no number for 3rd row, 3rd column. So it's partially initialized which has default value zero. |
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| Jay said: (Feb 7, 2015) | |
| First it solve 4>>1 and then solve 8>>1. Answer is 2 and 4. Then it print the value. But here %d is 4 times in printf(""). So it print only two values and other two are garbage value. |
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| Adam said: (Mar 3, 2016) | |
| #include<stdio.h> int main() { printf("%d >> %d %d >> %d\n", 4 >> 1, 8 >> 1); printf("%d >> %d >> \n", 4 >> 1, 8 >> 1); printf("%d %d \n", 4 >> 1, 8 >> 1); return 0; } Try this. |
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| Prat said: (May 17, 2016) | |
| Why garbage value? Please explain clearly. | |
| Krutika said: (Jul 4, 2016) | |
| Thank you @Mayur. | |
| Praba said: (Sep 8, 2016) | |
| What is mean by rest is garbage? | |
| Anushka said: (Sep 11, 2016) | |
| But in the right shift. Spaces are filled with 1. Then how 0010 can occur? | |
| Suyog said: (Nov 6, 2016) | |
| Can anybody explain about garbage? | |
| Saikumar said: (Dec 16, 2016) | |
| Thank you @Neetu and @Teja. | |
| Vishu said: (Jan 16, 2017) | |
| @Nizamuddin, Array always represents starting from '0' position so there is two matrices represented as a a[0] & a[1]. so there is no a[2] so it shows a value as '0'. If I made any mistake correct me. Thank you. |
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| Shree said: (Feb 26, 2017) | |
| Thanks @Neetu. | |
| Ashwini said: (Jul 10, 2017) | |
| Please explain, why garbage value occur? | |
| Vandana said: (Dec 27, 2017) | |
| Thank you for all the given explanation. | |
| Malu said: (Feb 23, 2018) | |
| @Neetu. Why we should consider the rest value as garbage I can take it directly as 2 4 why should go for garbage value. Could you please explain me? |
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| Harshal said: (Sep 4, 2018) | |
| Thanks for explaining the answer. | |
| Sai said: (May 3, 2019) | |
| 4>>1 means divide 4 by 2 power 1 and 8>>1 means divide 8 by 2 power 1 then you will get answer as 2 and 4 if it is less then less then multiply by 2. | |
| Rather said: (Jan 8, 2020) | |
| Hello All. For people who thinks why garbage values get printed , let us look at this ststement printf("%d >> %d %d >> %d\n", 4 >> 1, 8 >> 1); We have four %d's, means we should have four variables to print but here we have only two representing first two :ie 4>>1 & 8>>1, last two format specifiers have no variables listed to print , so in such cases, it will print them as garbage values. |
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