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How many times does the loop iterated?for(i=0;i=10;i+=2)printf("Hi\n");A.10B. 2C. 5D. None of these
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Consider the following C codemain(){int i=3,x;while(i>0){x=func(i);i--;}int func(int n){static sum=0;sum=sum+n;return(sum);}}The final value of x isA. 6B. 8C. 1D. 3
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What is the output of the following program? #define SQR(x) (x*x) main() { int a,b=3; a= SQR(b+2); printf("%d",a); } a) 25 b) 11 c) error d) garbage value
ign407
- Jul 31st, 2011
Answer is 11
a= SQR(b+2) is equivalent to writing a=(3+2*3+2) here arthimetic operator * has high preference so
which gives 11. hence, option B is correct. -
If the following program (myprog) is run from the command line as myprog friday tuesday sunday, What would be the output? main(int argc, char *argv[]) { printf("%c",*++argv[1]); } a) r b) f c) m d) y
Amber Bhardwaj
- Apr 15th, 2014
For example, the command line gcc -o myprog myprog.c would result in the following values internal to GCC: "c argc 4 argv[0] gcc argv[1] -o argv[2] myprog argv[3] myprog.c ...
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">Viii) main(){ char *p; printf("%d %d ",sizeof(*p),sizeof(p));}
1 2Explanation:The sizeof() operator gives the number of bytes taken by its operand. P is a character pointer, which needs one byte for storing its value (a character). Hence sizeof(*p) gives a value of 1. Since it needs two bytes to store the address of the character pointer sizeof(p) gives 2.
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">What is the difference between#include< >and#include" "
kbjarnason
- Jul 2nd, 2010
#include "file.h" tells the preprocessor to look in places other than the standard locations first; generally this means looking in the current directory.#include <file.h> tells the preprocessor to look in the standard locations.
ashutosh_dasgupta
- Apr 29th, 2006
#include <filename>#include "filename"both of which cause a new file to be read at the point where they occur. It's as if the single line containing the directive is replaced by the contents of ...
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printf(" %d", sizeof(u.a));
// printf("%d", sizeof(u.a[4].i));
}
">Union u{ union u { int i; int j; }a[10]; int b[10];}u;main(){ printf("n%d", sizeof(u)); printf(" %d", sizeof(u.a));// printf("%d", sizeof(u.a[4].i));}
A) None of the AboveB) 1, 100, 1C) 40, 4, 4D) 4, 4, 4Explanation: 20, 200, error for 3rd printf
abhimanipal
- Jan 24th, 2010
If I uncomment the third printf I get the following errorpollux {~} > gcc test.c -o testtest.c: In function `main':test.c:21: error: union has no member named `i'pollux {~} >This is on linux machine with gcc compiler. Can anyone explain the reason for this ?
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What would be the output of the following program? main() { int i=4; switch(i) { default: printf("n A mouse is an elephant built by the Japanese"); case 1: printf(" Breeding rabbits is a hair raising experience"); break; case 2: printf("n Friction is a drag"); break; case 3: printf("n If practice make perfect, then nobody's perfect"); } }
A) a) A mouse is an elephant built by the Japanese B) b) Breeding rabbits is a hare raising experience C) c) A mouse is an elephant built by the Japanese Breeding rabbits is a hare raising experienceD) d) None of the above
Jialun
- Jun 27th, 2007
Ans should be A+B because there is no break; at the end of default section which will lead the program flow into the first case till the break;
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If the following program (myprog) is run from the command line as myprog 1 2 3, What would be the output? main(int argc, char *argv[]) { int i,j=0; for(i=0;i<argc;i++) j=j+ atoi(argv[i]); printf("%d",j); }
A) 1 2 3B) 6C) errorD) "123"
vanavill
- Mar 7th, 2008
initially J=0,then, it incremented by the arg value one. now it is 1.then it incremented by the arg&nb...
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Write a code for implementation of doubly linked list with use of single pointer in each node
Xavier Raj
- May 9th, 2006
Hi,I agree with Ashtosh , since linked list nodes are stored dynamically in memory wherever it has space so the simple addition wont give track of nodes but a junk value.we can construct this only by combining two pointer nodes for single data value.its complex too...!
ashutosh_dasgupta
- Apr 28th, 2006
hi viral,???? how does doing simple addtion to the addresses will take u to the next node?as far as i remember the nodes are not in a sequence in the memory. this is true in case of an array, but not in dynamically allocated memory as in linked list!
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When function say abc() calls another function say xyz(), what happens in stack?
jintojos
- Jul 7th, 2008
before the control transfered into the called fucntion(ie. xyz()), the values in some of the registers copied into the stack(registers are : BP,SP,CS,IP,falg).also the values of the local variabl...
Sunil Soni
- May 5th, 2006
when the function 'abc()' calls another function 'xyz()' then first of all, current status of execution is stored in the STACK i.e. the address of current statement (Which lies in Code segment), then ...
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Write a program which accepts a filename as a command line argument and reverses the contents of the file( ie first character becomes the last character of the file and so on) Input: The program takes the file name whose content should be reversed. Output: The program reverses the contents of the file.
y.swathi
- Jan 29th, 2007
Its very useful
bmlal
- Jul 14th, 2006
int main(int argc, char *argv[]){ int fd, i, fsize; char *first=(char *) malloc(1); char *last=(char *) malloc(1); fd = open(argv[1], O_RDWR); fsize = lseek(fd, 0, SEEK_END); for (i=0; i lessthan fsiz...
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How to type a string without using printf function?
jintojos
- Jun 16th, 2008
Using Video Memory We can write a string into the screen.....that is the string is directly placed into the Video memory...ExampleVideo Memory Address : 0xb0008000 pgm: void main() { int i=0; ...
shaanxxx
- Aug 20th, 2006
Use write system call write (1 , "XXXXXXXXXXXXXXX" , strlen("XXXXXXXXXXXXXXX" ));
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How do we get Square root of any number Without using sqrt() fuction?
Divick Kishore
- Feb 25th, 2011
A better approach would be to use newton raphson method. An equivalent python program would be written as:import sysimport osi = 0def sqrt_p(num, prev_sqrt): global i i += 1 if ( i > 5 ): return c...
R.S.Jayasathyanarayanan
- Dec 17th, 2006
#include main(){int a=5;int b=a^(.5)tf("%d", b);}
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fork();
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how many times "welcome to the world" message will print ?">What would be the output of the following program ?main (){printf ("welcome to the world");fork();}how many times "welcome to the world" message will print ?
pratikgotal
- Apr 5th, 2010
The fork() system call will spawn a new child process which is an identical process to the parent except that has a new system process ID. Hence printf ("welcome to the world"); this statement execute infinite time
wizard
- Feb 27th, 2007
It will print one time only, bzc after fork there is no printf statments. the printf statement is before fork so for parent it will print.
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plz simplify the statement the 2 .when i run program gives undefined symbol p..but in a/c mcq that is correct ..say collect address of i ..how?? ">1)what is RTTI in c++?2)main(){ int i=10; int &p=i; //statement 2printf("%d %d"i,p);}plz simplify the statement the 2 .when i run program gives undefined symbol p..but in a/c mcq that is correct ..say collect address of i ..how??
Sukumar Paul
- Aug 2nd, 2010
Hello anuj, This program should compile and run in Turbo C++3.0 Anyway, here you have declared and defined a integer variable 'i' initially its value is 10. Then you are declaring a reference ...
abhimanipal
- Jan 21st, 2010
There is no error in the program. The program compiles perfectly. when he writes int &p =i; p is a reference variable and it points to i. So there is no problem as such
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