Programming and Graphics

36 Introduction to C++ Programming and Graphics

and the array of strings:

string A[9][38];

Successiverowsof a matrix are stored in consecutive memory blocks.

Data structures

Consider a group ofMobjects,

o 1 ,o 2 ,...,oM,

agroupofNproperties,
p 1 ,p 2 ,...,pN,

and denote thejth property of theith object by:

oi.pj

The individual properties of the objects can be accommodated in a data
structure defined, for example, as:

struct somename

{

int p1;

float p2;

double p3;

double p4;

}

o1, o2, o3;

Alternatively, we may define a data structure in terms of the properties
alone by declaring:

struct somename

{

int p1;

float p2;

double p3;

double p4;

};

and then introduce members by declaring:

somename o1;

somename o2, o3;

Objects and properties are threaded with a dot (.) into variables that