Explain what is the purpose of "extern" keyword in a function declaration?
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what is the hardware model of CFG( context free grammar)
Print the foll in C...eg when n=5 the o/p must b + + + + + + + + + + + + + + + + +
Can you apply link and association interchangeably?
can you explain in brief what is "r+" mode in a file... i know that it si used to read and modify rhe existing content.... but explalanation about the file pointer in "r+" mode i wann to know???????????
Explain what is the difference between declaring a variable and defining a variable?
Can a program have two main functions?
How is a macro different from a function?
class foo { public: static int func(const char*& p) const; }; This is illegal, why?
Write a client and server program in C language using UDP, where client program interact with the Server as given below: i) The client begins by sending a request to send a string of 8 characters or series of 7 numbers, the server sends back a characters or numbers as per the request of the client. ii) In case of series of 7 numbers: The client sends a multiplication of numbers, to the server. iii) In case of a string of 8 characters: The client sends a reverse order of string to the server.. iv) Server will send an acknowledgment to the client after receiving the correct answer
What is difference between static and global variable in c?
#include<stdio.h> int main(){ int i=10; int *ptr=&i; *ptr=(int *)20; printf("%d",i); return 0; } Output: 20 can anyone explain how came the output is 20
Is c programming hard?