Importance of union in 'C':
unions are the concept borrowed from structures in structures we allow different datatypes in which each datatype is allocated a separate memory location .But in unions same as structures we use different data types but all the datatypes will be allocated to a single memory location and only one datatype with maximum size will be used for allocation of all the data types used in a union program.Sample code for union is as follows:
union item
{
int m;
float c;
char x;
}code;
In the above program we used three kinds of datatypes here integer size is 4 so the other data types will be shared in the same location of size 4.then the memory will not be wasted and all the memory will be utilized perfectly.
C programs do not function without functions.
write a c program to display marks,total,average,grade using union
It's a fragment of memory shared by multiple variables.
Functions are very important in C++, as you can't write the simplest program to print hello without using a function. Overall you can say that function are building blocks of a C++ program. Functions can also be defined by the programmer to reduce program size.
Importance of union in 'C':unions are the concept borrowed from structures in structures we allow different datatypes in which each datatype is allocated a separate memory location .But in unions same as structures we use different data types but all the datatypes will be allocated to a single memory location and only one datatype with maximum size will be used for allocation of all the data types used in a union program.Sample code for union is as follows:union item {int m;float c;char x;}code;In the above program we used three kinds of datatypes here integer size is 4 so the other data types will be shared in the same location of size 4.then the memory will not be wasted and all the memory will be utilized perfectly.
I guess you mean C++, not C.Data fields of a structure/union are public by default,those of a class are private by default.
A union, is a collection of variables of different types, just like a structure. However, with unions, you can only store information in one field at any one time
the features of a C program
c program was introduced in the year 1972 by Dennis RitchieNo, it was the C language, not the C program.
The answer depends on whether you mean A intersecting (B union C) or (A intersecting B) union C.
I think it is 'execution of a C program'.
how to create a c program for left factoring.