Explain what happens if you free a pointer twice?

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EXPLAIN #INCLUDE<STDIO.H> EXPLAIN #INCLUDE<CONIO.H>

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What is the purpose of the statement: strcat (S2, S1)?

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main(){char *str;scanf("%s",str);printf("%s",str); }The error in the above program is: a) Variable 'str' is not initialised b) Format control for a string is not %s c) Parameter to scanf is passed by value. It should be an address d) none

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how do you execute a c program in unix.

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GIVEN A FLOATING POINT NUMBER HOW IS IT ACTUALLY STORED IN MEMORY ? CAN ANYONE EXPLAIN?? THE 32 BIT REPRESENTATION OF A FLOATING POINT NUMBER ALLOTS: 1 BIT-SIGN 8 BITS-EXPONENT 23 BITS-MANTISSA

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what is the difference between exit() and _exit() functions?

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why programming language C is still used in operating system's kernel??

1 Answers   Wipro,

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What does a derived class inherit from a base class a) Only the Public members of the base class b) Only the Protected members of the base class c) Both the Public and the Protected members of the base class d) .c file

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Just came across this question, felt worth sharing, so here it is I want you to make a C/C++ program that for any positive integer n will print all the positive integers from 1 up to it and then back again! Let's say n=5 I want the program to print: 1 2 3 4 5 4 3 2 1. Too easy you say? Okay then... You can ONLY USE: 1 for loop 1 printf/cout statement 2 integers( i and n) and as many operations you want. NO if statements, NO ternary operators, NO tables, NO pointers, NO functions!

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Why does the call char scanf work?

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What is meant by high-order and low-order bytes?

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