Hi, Can i use realloc to deallocate the memory allocated using new operator. For example: int * i = new int (10); realloc (i, 0); Thanks in advance. | |
void main() { int i=1; printf("%d,%d,%d",i++,i++,i++); } output 3,2,1 CAN SOMEONRE EXPLAIN ME WHY? | |
I am trying to use my virtual terminal for accesing Internet named as TELNET under Dos.But Every time when we want to connect or open a site giving it gives the message Could open a connection to [url]www.goggle.com[/url] Why it gives the error every time when i want to connect … | |
Hi, Can any body explain me about overloading concept of () operator? I need to know why do we need to overlload () operator and how do we achieve that? Thanks in Advance | |
Hi All, If i have choice to either use simple array(char a[]) or map. Which one i shall use, whether array or map. i need to know wich technique will give better performance. As per my requirement i will insert the element in array/map, find the element based on index. … | |
[code=c] void main() { fork(); fork(); printf("main"); } [/code] pls explain me what is the output. how it comes. | |
Hi, Is there any tutorial that tells how to do dynamic binding in C. Thanks in Advance. | |
Hi, Can someone expain why ompiler provide default Copy Constructor for every class. As i know there is only one reason that if Compiler does not provide the copy constructor, f we pass the object by value or we create a new object from existing object or we return object … | |
Hi All, Please expain me, in below giving statements which one is efficient. int i=0; i = i + 1; or i++; 2. In We Allocate the memory using malloc. between somewhere after allocating memory if our programming crashed.Then Allocated memory will be immedately freed by OS or OS will … | |
what will happen if we free the same memory two times in C. for exam........ char *k=(char *)malloc(4); free(k); free(k); | |
what happened if we do't typecast return value of malloc like that int *a=malloc(10); | |
char *ptr="abc"; char *ptr1; while(*ptr1++=*ptr++); //IT IS WORKING while((*ptr1)++=(*ptr)++); //ERROR PLS EXPLAIN ME. | |
Can someone explain me how these character or escape sequence are treated while finding string size(through sizeof() operator) \0 \n \a \1 \2 for example char str[]="\1abc\0\0" pls explain me in detailed | |
1. int *f() { int *m=(int *)malloc(2); return m; } WHY THIS POINTER TO INT TREATED AS A GLOBAL VARIABLE. 2.can a pointer points to another pointer like that int *p,i=2; int *q; p=&i; q=p; IS IT RIGHT. | |
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Consider the following programme void main() { char str[]="\12345s\n"; printf("%d",sizeof(str)); } Output is :6 can someone explain me why.And is sizeof contain null value while gigving the size of any string. | |
Consider The Following Statements *p++=*(p++) These Two Are Equals.can Someone Explain Me How. Is Parentehsis Not Alter The Behaviour? :?: | |
consider the programme void main() { unsigned i=1; signed j=-1; if(i<j) printf("less"); } output is: less why can someone explain me | |
#include<iostream.h> void main() { cout<<"hello"; } //IF WE COMPILE THIS PROGRAMME IT WILL NOT PRINT HELLO ON U'R SCREEN.TELL ME WHY & TELL ME PROCEDURE HOW IT PRINT USING COUT IN VC++ | |
EXplain me about these function cin.clear(); cin.ignore(); tell me what function i use for flushing a input bufer in c and c++; | |
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consider the following statement & tell me why it i undetermined or ambigious int i=9; i=i++; PLS EXPLAIN ME FULLY | |
LOOK THE FOLLOWING STATEMENT int *p[](); PLS TELL ME THE MEANING OF THIS STATEMENT.& WHERE WE USE THIS STATEMENT. | |
CONSIDER THE FOLLOWING CODE: int *p[]; // THIS IS ARRAY OF POINTERS int (*p)[] // THIS IS POINTER TO ARRAY. CAN SOMEONE EXPLAIN ME SOME MORE ABOUT THESE TWO STATEMENTS | |
LOOK THE FOLLOWING CODE: void main() { char a[]={'a','b','c',d'}; int b[]={1,2,3,4,5}; printf("%d %d",&a[3]-a,&b[3]-b}; } OUTPUT: 3 3 CAN SOMEBODY EXPLAIN ME WHY THE OUTPUT IS SAME. ACCORDING TO ME OUTPUT IS (3 6). | |
Look the following code: struct emp { CASE :1 struct emp p; //ERROR CASE :2 struct emp *k; //IT WILL WORK }; WHY IT IS WORKING IN CASE :2 and not in CASE :2. TELL me with explanation |
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