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What are the arithmetic operations that can be performed on pointers?
thulasi
- Apr 30th, 2007
The arithmetic operations that can be performed using pointers is of three.... one is for addition, subtraction and division....these are the 3 operations that are used by pointers...there is no, division and modulus operation.....
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What is the difference between the function pointer and pointer to a function
Robert
- May 8th, 2007
Pointers to functions concept is used in C programming language in various instances. One of the common instance in which programmers use pointers to function concept is for passing pointers to a func...
sripri
- May 8th, 2007
Function pointers are actually pointers. The address of a function gets pointed to by function pointer.Example of defining a function pointer is as below:int (*exforsys)(int,float)= NULL;
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What is structure padding?where it is used in real time applications?
fcawad_03
- Feb 21st, 2007
I understand that some compilers pad some bytes to the aggregate data types in order to access the members of the aggregate data types(i.e. structure) fast. This depends on the architectures. Some arc...
rr
- Feb 20th, 2007
Those are 3 different things.Structure PaddingMost processors require specific memory alignment on variables certain types. Normally the minimum alignment is the size of the basic type in question, fo...
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printf("Address of j=%un",&j);
printf("Address of k=%un",&k);
return 0;
}
Suppose the answer is:
Address of i=2004
Address of j=2002
Address of k=2000
why is the address decreasing ?">Consider the following program:#includemain(){int i=3;int *j;int **k;j=&i;k=&j;printf("Address of i=%un",&i);printf("Address of j=%un",&j);printf("Address of k=%un",&k);return 0;}Suppose the answer is:Address of i=2004Address of j=2002Address of k=2000why is the address decreasing ?
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Write a program to check if the number is palindrome or not using recursive function.
md faiz iqbal faiz
- Jan 15th, 2010
main{ int sum = 0,n,n1,r; printf(" enter the number to be tested for palimdromen" ); scan("%d",&n); n1=n; while(r!=0) {r=n%...
baseersd
- Jul 24th, 2007
Here is the code for palindrome with recursive mechanism#include<stdio.h>int rev=0; //Global Variableint REV(int num){if(num>0){ rev=(rev*10)+ (num %10); REV(num / 10); //calli...
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What is meant by "contagious memory allocation"?
bairaviuthra
- Jun 19th, 2007
Contiguous memory is meant by continuous memory space in the available memory. so when we allocate a memory space contigously in our programming it is reffered to as contiguous memory allocation.
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What is heap memory that is used to store global & static variables of C.
bismitapadhy
- Feb 16th, 2008
Global and static variable are stored in data segment.heap memory used for dynamic memory allocation.
Vishwas.p
- Feb 8th, 2008
Data - int char[]="hello".......constants not intiliazed to zero. BSS( Block started by symbol) - static int i....... all global and static variables stack - variables,...
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puts (wer):
1. prints the string 8 8 8
2. prints the null string
3. prints the string m, n, b
4. none of these
">The following program fragment int m=n=b=8; char wer[80]; sprintf(wer, "%d%d%d", m, n, b,); puts (wer): 1. prints the string 8 8 8 2. prints the null string 3. prints the string m, n, b 4. none of these
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What is true about the following C FunctionsA. Need not return any valueB. Should always return an integerC. Should always return a floatD. Should always return more than one value
laxmikanth
- Feb 10th, 2006
though the default scope is integer there is no compulsion that we should return an integer and we know that a void function can't return a value by using return statement.at the same time a void func...
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">Vi) main(){ extern int i; i=20;printf("%d",i);}
Linker Error : Undefined symbol '_i'Explanation: extern storage class in the following declaration, extern int i;specifies to the compiler that the memory for i is allocated in some other program and that address will be given to the current program at the time of linking. But linker finds that no other variable of name i is available in any other program with...
ashoksurati
- Apr 11th, 2008
Extern is a kind of variable declaration,if we declare a variable as extern it can be accessable anywhere in the program.the accessing of the variable is doesn't depends on the scope.TahnkUAshok
pavan.mustyala
- Apr 11th, 2008
Extern is a key word in C that indicates the scope of a variable or function.This key word can be used with a variable when it is used across different files of a typical project.The variable is ...
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}
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">Main(){ int x=5; clrscr(); for(;x==0;x--) { printf("x=%dn”", x--); }}
A) none of the aboveB) 0, 1, 2, 3, 4C) 1, 2, 3, 4, 5D) 4, 3, 2, 1, 0Explanation: prints nothing, as condition x==0 is False
dasam
- Mar 30th, 2007
It printfs nothing .. since the condition x==0 never satisfies and the for loop never executes :)
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If the following program (myprog) is run from the command line as myprog monday tuesday wednesday thursday What would be the output? main(int argc, char *argv[]) { while(--argc >0) printf("%s",*++argv); }
A) myprog monday tuesday wednesday thursdayB) monday tuesday wednesday thursdayC) mondaytuesdaywednesdaythursdayD) myprog tuesday thursday
Sukumar Paul
- Aug 1st, 2010
Yes the correct ans is (C). There will not be any spaces.Whenever we are entering command line argument and giving sapace between monday & tuesday that to push different pointer to string in agrv....
neetu
- Mar 6th, 2006
Sorry, it would be Cmondaytuesdaywednesdaythursday
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According to ANSI specifications which is the correct way of declaring main() when it receives command line arguments?
A) main(int argc, char *argv[]) B) main(argc,argv) int argc; char *argv[];C) main() {int argc; char *argv[]; }D) None of the above
kbjarnason
- Jul 2nd, 2010
None of the above. It should be:int main( int argc, char *argv[] )or int main( int argc, char **argv )Note that: a) these are different syntax for the same thing b) relia...
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What does it mean-a[i]=i+i
sachintewari
- Jul 13th, 2006
It is a simple assignment operation on arraysIn this the current array variable is assigned double the index value.
divya
- Jul 6th, 2006
Yes it is a assignment statement eg :let i=1a[1]=1+1so a[1]=2i=2a[2]=2+2a[2]=4so we get an even series
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