Question

Briefly explain the types of modifiers in c++ ​

Answer 1

Answer:

C++ allows the char, int, and double data types to have modifiers preceding them. A modifier is used to alter the meaning of the base type so that it more precisely fits the needs of various situations. The modifiers signed, unsigned, long, and short can be applied to integer base types. ... For example, unsigned long int.

Explanation:

C++ allows the char, int, and double data types to have modifiers preceding them. A modifier is used to alter the meaning of the base type so that it more precisely fits the needs of various situations.

The data type modifiers are listed here −

signed

unsigned

long

short

The modifiers signed, unsigned, long, and short can be applied to integer base types. In addition, signed and unsigned can be applied to char, and long can be applied to double.

The modifiers signed and unsigned can also be used as prefix to long or short modifiers. For example, unsigned long int.

C++ allows a shorthand notation for declaring unsigned, short, or long integers. You can simply use the word unsigned, short, or long, without int. It automatically implies int. For example, the following two statements both declare unsigned integer variables.

unsigned x;

unsigned int y;

To understand the difference between the way signed and unsigned integer modifiers are interpreted by C++, you should run the following short program −

Live Demo

#include <iostream>

using namespace std;

/* This program shows the difference between

* signed and unsigned integers.

*/

int main() {

short int i; // a signed short integer

short unsigned int j; // an unsigned short integer

j = 50000;

i = j;

cout << i << " " << j;

return 0;

}

When this program is run, following is the output −

-15536 50000

The above result is because the bit pattern that represents 50,000 as a short unsigned integer is interpreted as -15,536 by a short.

Type Qualifiers in C++

The type qualifiers provide additional information about the variables they precede.

Sr.No Qualifier & Meaning

1

const

Objects of type const cannot be changed by your program during execution.

2

volatile

The modifier volatile tells the compiler that a variable's value may be changed in ways not explicitly specified by the program.

3

restrict

A pointer qualified by restrict is initially the only means by which the object it points to can be accessed. Only C99 adds a new type qualifier called restrict.

Answer 2

$\left[\begin{array}{ccc}\\ANSWER\\\end{array}\right]$

There are four type modifiers in C++:

1. Signed
2. Unsigned
3. Short
4. Long

What is signed modifier?

-  It is capable of storing both positive and negative values.

What is Unsigned modifier?

- It is the opposite of signed variable, it doesn't store a value.

What is Short modifier?

- It is used to store a smaller interger

What is Long modifier?

- It is used to store a bigger/larger integer.

HOPE IT HELPS BRO :)