Review of Class XI

The Parameter that appears in the Function Call Statements are called Actual Parameters

The Parameter that appears in the FunctionDefinition Statements are called Formal Parameters

SEPERATE MEMORY ALLOCATION DUPLICATION OF VALUESCHANGES MADE IN THE FORMAL PARAMETERS ARE NOT REFLECTED BACK TO THE ORIGINAL/ ACTUAL PARAMETERS

NO SEPERATE MEMORY ALLOCATION NO DUPLICATION OF VALUESCHANGES MADE IN THE FORMAL PARAMETERS ARE REFLECTED BACK TO THE ORIGINAL/ ACTUAL PARAMETERS

IS USED TO GIVE A PSEUDO NAME FOR A PRE DEFINED DATA TYPEEG:typedef int integer;integer a=10;// int is given the name integer

IT IS A PRE PROCESSOR DIRECTIVEEG;#define PI 3.14 // SYMBOLIC CONSTANT #define sqr(x) (x)*(x) // MACRO THE MACRO TEMPLATE IS REPLACED WITH MACRO DEFINTION AT THE TIME OF COMPILATION

THE VARIABLES THAT ARE DEFINED ABOVE THE MAIN FUNCTION ARE CALLED GLOBAL VARIABALE,THE LIFE TIME OF THE VARIABLE IS TILL PROGRAM EXECUTION

THE VARIABLES THAT ARE DEFINED INSIDE ANY FUNCTION OR BLOCK IS CALLED LOCAL VARIABLESLIFE TIME IS WITHIN THE FUNCTION OR BLOCK

IS A COLLECTION OF SIMILAR DATA TYPE MEMORY IS ALLOCATED IN CONTIGUOUS BLOCK INDEXING STARTS WITH 0 AND ENDS WITH N-1

IS A COLLECTION OF DISSIMILAR DATA TYPETHEY ARE LOGICALLY RELATEDMEMORY IS ALLOCATED IN CONTIGUOUS BLOCK

A POINTER POINTS TO ANOTHER CELL IN THE MEMORYEg:int *ptr;int a=10;ptr=&a;