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Hello World
Write a program in C to display output as "hello world" without using semicolon(;)?
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Fflush() in Multiple Scanf calls
What is the requirment of using fflush() in multiple scanf calls.
jbode
- Jul 6th, 2010
The behavior of fflush() is not defined for input streams. If you need to clear extraneous or garbage data from an input stream, you'll have to use some other method. When dealing with...
kbjarnason
- Jul 1st, 2010
There is no requirement to use fflush in multiple scanf calls. fflush operates exclusively on output streams, thus has no relation to scanf, which is an input function.That said, if one is using...
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Maximum combined length of command line arguments in C
What is the maximum length of command line arguments including space between adjacent arguments ?
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Compare Two Files in C
Write a program that compares two files and return 0 if they are equal and 1 if they are not equal.
yongpark210
- Jul 15th, 2010
#include <iostream>using namespace std;int CmpFiles(void);int _tmain(int argc, _TCHAR* argv[]) {CmpFiles();return 0; }int CmpFiles(void) {int cmp = 0; FILE *pF1, *pF2;char c1[16], c2[16]; pF1 = ...
iantuy
- Apr 26th, 2009
int main(int argc, char* argv[]) { if(argc!=3) return -1; FILE *fp1, *fp2; fp1 = fopen(argv[1],"r"); fp2 = fopen(argv[2],"r"); if(!fp1 || !fp2) return...
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Pointer to Unsingned int
Why it is not possible to create pointer to unsingned int?
geek Jack
- Aug 2nd, 2010
Try this, it is working... in C#include<stdio.h>main(){unsigned int *p;int m=7;p=&m;printf("%d",*p);}
kbjarnason
- Jul 1st, 2010
Unsigned int *ptr;Voila; a pointer to unsigned int. What language was being discussed which supposedly prevents this? Certainly not C.
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Read and Sort 30 integers into One Dimension Array
Write a C programme that read 30 integer numbers into one dimension array then using a function to sort them in desinding order (this function should use another function to exchange any two elements int the array) after that print desorted elements?
jbode
- Jun 30th, 2010
"c #include #include #include /** * Read up to max_len integer values from the specified stream into ival. */ void getValues(FILE *stream, int *ival, size_t max_len, size_t *...
sarojkumar21.panda
- Sep 3rd, 2009
Hi , Let break the question into three parts 1-Read 3o intgers and store them in one dimensional array. 2. Write one function to sort them in descending order.Let the function name i...
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Break Statement
What is the break statement used for?1. To quit the program.2. To quit the current iteration.3. To stop the current iteration and begin the next iteration.4. None of the above.
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C question
How can you change the value of a constant variable in C?
jbode
- Nov 30th, 2010
mrinal671987: I should have checked the language standard before posting that code. Per section 6.7.3, paragraph 5, "[i]f an attempt is made to modify an object with a const-qualified type ...
mrinal671987
- Oct 29th, 2010
Jbode: You are right, but this program I have also tried and it works on gcc compiler but it gives same value in Turbo C
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Using C, How will you search for a word in file ?
if i enter an ID Number it should look in the .txt file the employee who owns that ID Number then it will display it on the screen..
Tanmay Hatkar
- Oct 8th, 2019
Can you please show me how to read a file until whitespace without using lib var type
jbode
- Sep 13th, 2017
How is the file structured? Is it a text or binary file? Is it a flat file or a tree structure? Are the records fixed or variable length? Is there a delimiter between the ID and name? Are records in the file ordered by name or ID number?
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Whats the output of.....>>?
#include
#include
void main()
{
int a=1;
if(a=1,3,5,6)
printf("good&a=%d",a);
else
printf("bad&a=%d",a);
}
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What is static memory allocation and dynamic memory allocation?
Static memory allocation: The compiler allocates the required memory space for a declared variable.By using the address of operator,the reserved address is obtained and this address may be assigned to a pointer variable.Since most of the declared variable have static memory,this way of assigning pointer value to a pointer variable is known as static memory allocation. memory is assigned during...
Akanksha Suneri
- Apr 19th, 2015
An array created at compile time by specifying size in the source code has a fixed size and cannot be altered at run time. The process of allocationg memory at compile time is known as STATIC MEMORY A...
jbode
- Mar 24th, 2015
As of the 2011 standard (http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1570.pdf), C has four storage durations for objects: static, thread, automatic, and allocated (6.2,4 Storage Durations of obje...
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printf("%s", obj->pName);
}
">Struct Foo{ char *pName;};main(){ struct Foo *obj = malloc(sizeof(struct Foo)); clrscr(); strcpy(obj->pName,"Your Name"); printf("%s", obj->pName);}
A) NameB) compile errorC) Your NameD) Runtime error
kgupta11oct
- Jul 6th, 2011
Hi Everyone,It seems simple but tricky. by allocating memory of size struct Foo does not allocate memory if there is any pointer variable in structure itself.Please allocate memory to that varia...
yba
- Jul 10th, 2007
If we assume you have a compiler that isn't strictly enforcing Ansi-C, and you make it to having an executable, the interviewer probably wants you to realize why this code is in error.The call to ...
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Would the following program compile? main() { int a=10,*j; void *k; j=k=&a; j++; k++; printf("n%u%u",j,k); }
A) YesB) No
abhimanipal
- Jul 29th, 2009
Test.c:10: error: invalid conversion from `void*' to `int*'test.c:12: error: ISO C++ forbids incrementing a pointer of type `void*'
aniljoo
- Feb 12th, 2007
No it will not work
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}
change(int *b,int n)
{
int i;
for(i=0;i
}
sytaxis correct?? was asked i a test
">Output of this Programme please??main(){ int a[]={2,4,6,8,10}; int i;change(a,5);for(int i=0;i
chaitanya
- Oct 22nd, 2007
First lets get the code ryt..#include "stdio.h"void change(int *b,int n){? int i;? for(i=0;i
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How to write a C program to find the power of 2 in a normal way and in single step?
aravindkumarsingh
- Jun 4th, 2008
# include <stdio.h># include <conio.h>void main(){ int x; printf("Enter the value of x: "); scanf(" %d", &x); if((x & (x-1)) ==0) prin...
krisgroup
- Oct 22nd, 2007
Hi folks,I would say try this ...int result=!((input_no&&input_no-1)&&input_no)it works a good bit twidling technique,chaitanya
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FILE *fp;What is size of FILE data type???
kbjarnason
- Jul 7th, 2011
"If you look in stdio.h, you see..." - which stdio.h? The one from visual studio 95? gcc for Linux? Some other one? Those header files are not identical from im...
kgupta11oct
- Jul 7th, 2011
If you see the declaration of FILE in stdio.h:struct _iobuf { char *_ptr;int _cnt; char *_base;int _flag; int _file;int _charbuf; int _bufsiz;char *_tmpfname; };As there is no packing, the default wil...
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Printing numbers from 1 to 100 without using condition checking.
jose
- Oct 19th, 2006
Just came up with another solution. It is a 1-liner:cout
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Write a program to get the following output ..n should be entered by user...like when n=5 the output should be110101101010101
sivaraju.sateesh
- Jul 20th, 2010
#include<stdio.h>main(){int n,i=4,j;scanf("%d",&n);while(i<=n+3){for(j=3;j<i;j++){printf("%d",j%2);}printf("n");i++;}}
R.S.Jayasathyanarayanan
- Dec 17th, 2006
void main(){ int i,n; ...
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C Interview Questions
Ans