-
What are the advantages of auto variables?
1)The same auto variable name can be used in different blocks2)There is no side effect by changing the values in the blocks3)The memory is economically used 4)Auto variables have inherent protection because of local scope
plan_with.me
- Jan 27th, 2008
The main advantage of auto variable is if we use auto variable in different block of our code with different value then it has not any sideeffect because it is automatically managed by the compiler .
vinod
- Feb 22nd, 2007
Auto variable have initial value as garbage.auto int and int are one and the same.
-
What does the following code do?fn(int n, int p, int r){static int a=p;switch(n) { case 4:a+=a*r; case 3:a+=a*r; case 2:a+=a*r; case 1:a+=a*r; }}A. computes simple interest for one yearB. computes amount on compound interest for 1 to 4 yearsC. computes simple interest for four yearD. computes compound interest for 1 year
kumarchirag_05
- Jan 24th, 2008
the answer to the question ius option BReason beingif this function is called from within a loop with n=0 to n<4then cases 1,2,3,4 in switch will be called one by oneas int a is static ,first ...
-
What is byte offset of a field within a structure?
ravi_529
- Jan 22nd, 2008
#include <stddef.h>offset = offsetof(type,member);use this macro.or visit below link for more details. http://www.thinkage.ca/english/gcos/expl/c/lib/offset.html
-
I want a C program to rearrange a linked list so that nodes with even numbers as their information come first. Input:The input consists of the information in each node of the linked list. Output:The program displays the information in the linked list after the links are rearranged. Sample Input:Enter the information in the linked list (Enter -1 to exit): 321020478-1Sample Output:After links are rearrangedInformation in the linked list:21020483
baseersd
- Jan 21st, 2008
#include<stdio.h>typedef struct _node NODE;struct _node{ int num; NODE *next; };NODE* New_Node(NODE *Head,int num){ NODE *temp,*Curr; if(H...
-
What are far and near pointers?
mulay chetan
- Jan 18th, 2008
A Null pointer is one which does not refer to any thing
Far pointer refers to an address which not in the same segment where pointer is defined.
Near pointer refers to an address in the same segment where the pointer is defined
Regards
Mulay Chetansubitech
- Jan 5th, 2007
Pointers can either be near, far, or huge. Near pointers refer to the current segment, so neither DS nor CS must be modified to dereference the pointer. They are the fastest pointers, but are limited ...
-
Read data in mdb file
How to access and read data in mdb file from C?
-
Why is that a pointer is depicted by '*' in C?
dattu.kv
- Jan 5th, 2008
pointer is depicted by '*' .?this is ?to? differentiate?a?pointervariable?from normal variable. it will tell the compiler that it is not a normal variable, but it is a pointer variable which is ...
-
Write a program in C to find the complex number of a given number.
Susil Kumar
- Jan 5th, 2008
I don't understand whether the given number means an integer or a float number. However, we cannot find any complex number from the given number being a real number. It is possible to extract inte...
-
Calendar Program
Develop a program that receives the month and year from the keyboard as integers and prints the calendar in the following format March 2006 Mon Tue Wed Thu Fri Sat Sun 1 2 3 4 5 6 7 8 9 10 ...
winny gupta
- Jan 4th, 2008
here is the solution:#include<stdio.h>#include<conio.h>//0 is for monday, 1 for tuesday and so onint leapyear(int year){ if (year % 400 == 0) return 1; ...
-
What is a static function?
A static function is a function whose scope is limited to the current source file. Scope refers to the visibility of a function or variable. If the function or variable is visible outside of the current source file, it is said to have global, or external, scope. If the function or variable is not visible outside of the current source file, it is said to have local, or static, scope.
srini.embsys
- Dec 25th, 2007
With in the module it will comes upto end of the program.we can't access in another module.Number of functions it can access the static variable and sustaining that variable value.It can be declared as Local and Global.
i_spy
- Dec 25th, 2007
Suppose void a(){} is defined in file1.c. If you declare it extern in file2.c then you can use it in file2.c. So its scope in not within file1.c. But if you declare it as static in file1.c then it can not be used in any other file.
-
What is the significance of following functions1. freopen()2. strtok()3. access()4. state()
ravi_529
- Dec 24th, 2007
Freopen() :ensures that no other file descriptors are associated with the stream being open'd.strtok(): used to tokenize a given with the help of a delimiter.access(): int access(const char *pathname, int mode) checks for user permissions of the given file.state():I donno yaar
-
-
What is pseudo code ?
Explain with an example and how to develop the program
kamal7725
- Nov 30th, 2007
Pseudo is not a programming language. It is your language. before writtinga program, we usually draw a blue print on the papar. likeif a > 0??? then show a proper messageelse??? get the data from user.like, and then we write this in C++ or Java or any language which you know.
sachipatnaik2008
- Sep 12th, 2007
Pseudo Code the code for designing any type of programs. Pseudo Code is otherwise known as algorithm. The Pseudo code helps any one to solve any type of problems.A person does not know any type ...
-
How many ways a function can be used according to the argument list and return types? Explain
kamal7725
- Nov 30th, 2007
That's true overloading in not possible in C.But in C++ function can be varied depending on its argument not on the return type.because, if there are two function with the same name having same ar...
-
What is the "escape hatch" provided by #pragma directive?
kamal7725
- Nov 29th, 2007
This directive is used to instruct the compiler. Suppose you don't want something to compile that condition can be put under this directive, and compiler will show error if that thing meets in the code.
-
Object creation
How can we stop the user make an object on stack, i.e. user must be able to create the object on heap only.
-
How will this behave - char p=NULL; char &q=p;?
kamal7725
- Nov 29th, 2007
Internally NULL is defined as 0, this may varies compiler to compiler. so just think the above statement like this.char p = 0;char &q = p;if you see output of q it will be 0. if we change it likechar p = 65;char &q = p;output of q would be 'A'.
-
C logic help
In this x is the input and F(X) is the output,tab_func(sin, 0.0, PI, PI/8.0) is the method i have to use to get a output.Plz give me the relation b/w x and F(x).A function which will tabulate values of any given function from a given startingvalue up to (and including) a given final value. The size of the each step from thestarting value to the final value should also be a parameter of the function.For...
-
-
C Interview Questions
Ans