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Pointer Types
Pointer holds the address of an object, permitting for the indirect manipulation of that object. They are used in creating linked data structures like lists, trees and management of objects that are dynamically formed during program execution.
type *ptrname;
type can be of any data type and pointer name becomes the pointer of that data type.
e.g.
int *iptr;
char *cptr;
float *fptr;
The pointer iptr kept the address of an integer. In other words it points to an integer, cptr to a character and fptr to a float value
The new and delete operators The C language has explained library functions- malloc() and free() for dynamic allocation and de-allocation of memory. C++ gives yet another appro
Differences between a pointer and a reference 1. A reference must always point to some object where as this restriction is not imposed on a pointer. e.g. int *pi = 0;
Abstract Classes Abstract classes are the classes, which are written just to act as base classes. Consider the following classes. class base
A: No. There is nothing you can do in C++ which you cannot do in C. In spite of everything
Define a class polynomial with three private data members a, b and c of type double to represent the coefficient of two degree polynomial(ax^2+bx+c). Include a constructor in a pol
b) The static keyword let a variable to maintain its value among distinct function calls. If the value of a static variable alters while the variable has been accessed, variable
what is cexplain
When declaring a variable of data type pointer, use the * in front of the variable name. These variables hold a memory location (like B45CDF), not an actual value like 30 or A:
minimum of seven number
Asks the user for an integer. if the number is less than 21, ask them for a number again; repeat this until you get a number bigger than 20. 20 is not an acceptable number. Once yo
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