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for object, malloc allocates memory in heap however doesn't invoke object's constructor to initialize the object. new allocates memory & also invokes constructor to initialize the object. free() and malloc() do not support object semantics, does not destruct and construct objects
For example : string * ptr = (string *)(malloc (sizeof(string))) Are not secure, and does not compute the size of the objects that it construct
The following return a pointer to void int *p = (int *) (malloc(sizeof(int))); int *p = new int;
Are not extensible delete and new can be overloaded in a class "delete" first calls object's termination routine (for example. its destructor) and after that releases the space the object engaged on the heap memory. If an array of objects was developed using new, then delete ought to be told that it is dealing along with an array by preceding the name along with an empty []:-
Int_t *my_ints = new Int_t[10];
...
delete []my_ints;
i need short program
There is a pebble merchant. He sells the pebbles, that are used for shining the floor. His main duty is to take the length of the room’s sides. But he sometimes mistakes doing that
Define Pure Virtual Function? Why & when it is used?
A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome
I need plugin for amibroker using c++ Project Description: Need to prepare plugin for amibroker using c++. Should be system bound after installing. System should show based o
what is virtual datatype
decodes the sending smuggler string from the number format into plain text
Q: How the compiler arranges the several sections in the executable image? A: The executable contained following sections: 1. Data Section (initialized data variable sec
# include stdio.h> # include conio.h> # include string.h> void main() { int i=0,j=0; char a[100],temp; clrscr();
Define the Data Type Qualifiers in c Language? 1. const 2. volatile const: The const qualifier is used to tell C that the variable value can't change after initialization.
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