-
}">
Union u{ struct st { int i : 4; int j : 4; int k : 4; int l; }st; int i;}u;main(){ u.i = 100; printf("%d, %d, %d",u.i, u.st.i, u.st.l);}
100,4,0
shiva
- Sep 27th, 2011
U.i=100 // initialized in main i.e 100
u.s.j=4 // initialized in struct i.e 4
u.s.l=0 // not initialized so default os struct i.e 0 -
Can math operations be performed on a void pointer?
No. Pointer addition and subtraction are based on advancing the pointer by a number of elements. By definition, if you have a void pointer, you don’t know what it’s pointing to, so you don’t know the size of what it’s pointing to. If you want pointer arithmetic to work on raw addresses, use character pointers.
-
Consider the following program segmentint n, sum=1;switch(n){case 2:sum=sum+2;case 3:sum*=2;break;default: sum=0;}If n=2, what is the value of sumA. 0B. 6C. 3D. None of these
belinda
- Oct 6th, 2011
C answer is 3
prititripathi
- Oct 2nd, 2011
N=2 to switch moves control to case 2:
where value of sum will become 2+1=3
as there is no break so all statement below it will be executed
so now case 3: will be executed n sum will hold value 3*2=6
now break is used so control will move out of loop i.e. switch case -
Find directory from the file
A file containing the one million directories , then find the a directory from the file and print it in c language.
-
Double Pointer
What is a Double Pointer? What are its specific uses.
jbode
- Oct 10th, 2011
By double pointers I assume you're talking about something like **ptr, as opposed to a simple pointer to a double object. Multiple levels of indirection show up in the following areas: 1. You want ...
garima
- Oct 6th, 2011
Double pointers are useful whenever you have defined user defined pointers in your main function. And you want to change their values from outside the main like in functions other than main. There the use of pointers is must.
-
What is an argument ? differentiate between formal arguments and actual arguments?
An argument is an entity used to pass the data from calling funtion to the called funtion. Formal arguments are the arguments available in the funtion definition.They are preceded by their own data types.Actual arguments are available in the function call.
geetika mahajana
- Oct 8th, 2011
FORMAL ARGUMENT :-The argument declared in function header is called formal argument......
ACTUAL ARGUMENT:- The argument passed to function while the function is called actual parameter.........venkatesh
- May 18th, 2006
The actual arguments are the arguments with which the function can be called. The formal arguments are the arguments with which the function can be defined.Simply, function call contains actual ...
-
-
When is a switch statement better than multiple if statements?
A switch statement is generally best to use when you have more than two conditional expressions based on a single variable of numeric type.
jaspreet grewal
- Oct 13th, 2011
Simply saying, IF-ELSE can have values based on constraints
where SWITCH can have values based on user choice.Jegan Chakkravarthy
- Jan 7th, 2011
Switch statements can be used when any one of the given alternatives are to be matched. In the sense, only when an equality operator is needed. Other relational operators can't be used in switch c...
-
Using C Program in Microsoft Word
how can we use our c program into the specified application;
as:
if i click on the Microsoft word then our any specified c program executes.mithr17
- Oct 17th, 2011
I'm confused..can you please re-iterate your question for me to at least try to help you out?
-
Stack size of a function
How to write a C function which will return its stack size ?
-
Print the output as follows by a c program without using loops?
print the output as follows by a c program without using loops?
1
1 2
1 2 3
1 2 3 4
1 2 3
1 2
1Sai Praveen Gampa
- Nov 1st, 2011
No need of three functions. Good thought to use Recursive. I have just divided that output as.. 1 1 2 1 2 3 1 2 3 4 1 2 3 1 2 1 Dont mind if you want the same output as you specified just remove pri...
jbode
- Oct 19th, 2011
This can easily be done with 3 recursive functions. The first function will print out a sequence from 1 to n: void printSeq1(int n) { if (n > 1) printSeq1(n - 1); printf("%d ", n); } The se...
-
Function to find Occurrences
Write a function Occurrences() in a language of your choice that takes in two strings. The first is a search string, and the second is a sentence. For example, running the function:Running Occurrences ("o", "Red Gate Software - Ingeniously Simple Tools")will output: Occurrences of 'o': 4Occurrences ("at", "The cat sat on the mat")will output: Occurrences of 'at': 3charles.
shashank
- Nov 3rd, 2011
Code- span style="color: #ff0000;">"occurances = %d",occ("at","the cat sat on the mat"));
- }
the_code
- Aug 24th, 2011
Below is the code to do this in C language. Hope this helps."c #include #include int count_occurences(char *big, char *small) { char *temp; int count=0; temp=strstr(big,small)...
-
-
Pointer Disadvantages
What are the disadvantages of using pointer in C?
Satarupa Panda
- Nov 17th, 2011
If sufficient memory is not available during runtime for the storage of pointers, the program may crash.
jbode
- Feb 2nd, 2011
In general, there's no good way to know if a non-NULL pointer value is valid and refers to an area of memory that's safe to access and/or modify.There's no way to determine from the pointe...
-
Write a program to reverse a linked list
samCPP
- Dec 5th, 2011
Reversing a Linked list using temporary pointer "c #include #include using namespace std; template < class T > struct node { int element; node < T > *next; node() { ...
ankit srivastava
- Oct 17th, 2011
public void ReverseLinkedList (LinkedList linkedList) { // ------------------------------------------------------------ // Create a new linked list and add all items of given // linked list to the co...
-
-
Write code sample for string reversal program in c by using for loop and using only one buffer
jbode
- Dec 14th, 2011
Below is a simple, straightforward, maybe not the fastest method for reversing a string in place. Why not start j at strlen(str) - 1? If the string is empty, strlen will return 0, and since size_t...
shiva
- Sep 27th, 2011
We can use directly strrev ()
Code- #include <string.h>
- #include <stdio.h>
- "string""Before strrev(): %s
- ""After strrev(): %s
- "
Find address of variable
How to find the address of a variable which is declared as long double?
jbode
- Jan 2nd, 2012
Get the address by using the unary "&" (address-of) operator. You can display it with printf() by using the "%p" conversion specifier (youll need to cast the argument to "void *"). See below:{geshib...
Decrement operator in C
int a=3,y;
y=++a + a+++ --a+ ++a;
printf("%d%d",y,a);
Why value of y become 16.
Ans