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C++ Data Types
course content

Course Content

C++ Data Types

C++ Data Types

1. Introduction
OverviewArithmetic OperationsDivision int and doubleMath in C++Specifying a Type
2. Numerical Data Types
IntegersUsing IntegersType modifierFloatDoubleNumerical Data Types Summary
3. Text Data Type
CharStringIndexing a StringWorking With StringChanging The String PracticeFinding Text in a StringStrings in Memory
4. Other Data Types and Concepts
BooleanBoolean ExpressionsVoidAuto UnsignedImplicit Type ConversionExplicit Type Conversion

bookType modifier

short and long are the type modifiers.

cpp

main

copy

              
12345678910

            
#include <iostream>

int main()
{
	long int large_number = 4000000000;
  	short int small_number = 45;
  	
	std::cout << "Large number: " << large_number << std::endl;
	std::cout << "Small number: " << small_number <<std:: endl;  
}

What those type modifiers do is change the size of a type. While int takes up 4 bytes, short int takes up 2 bytes, and the long int 8 bytes of memory.

Note

There is a shorter syntax available you can use any of them:

  • short is equivalent to short int;
  • long is equivalent to long int;

So, we need to use long (long int) to store large values.
In contrast, we can use short (short int) to take up less memory. However, its range is narrower because of that. Here is the table with ranges that a type can hold:

Note

On Windows, long also takes up 4 bytes, just like int.

If you are working on Windows, you should use long long int (or long long) instead of just long.

Task

  • Change the type of the variables so it can hold a larger number.
  • Output the result of the expression.

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Section 2. Chapter 3
toggle bottom row

bookType modifier

short and long are the type modifiers.

cpp

main

copy

              
12345678910

            
#include <iostream>

int main()
{
	long int large_number = 4000000000;
  	short int small_number = 45;
  	
	std::cout << "Large number: " << large_number << std::endl;
	std::cout << "Small number: " << small_number <<std:: endl;  
}

What those type modifiers do is change the size of a type. While int takes up 4 bytes, short int takes up 2 bytes, and the long int 8 bytes of memory.

Note

There is a shorter syntax available you can use any of them:

  • short is equivalent to short int;
  • long is equivalent to long int;

So, we need to use long (long int) to store large values.
In contrast, we can use short (short int) to take up less memory. However, its range is narrower because of that. Here is the table with ranges that a type can hold:

Note

On Windows, long also takes up 4 bytes, just like int.

If you are working on Windows, you should use long long int (or long long) instead of just long.

Task

  • Change the type of the variables so it can hold a larger number.
  • Output the result of the expression.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 2. Chapter 3
toggle bottom row

bookType modifier

short and long are the type modifiers.

cpp

main

copy

              
12345678910

            
#include <iostream>

int main()
{
	long int large_number = 4000000000;
  	short int small_number = 45;
  	
	std::cout << "Large number: " << large_number << std::endl;
	std::cout << "Small number: " << small_number <<std:: endl;  
}

What those type modifiers do is change the size of a type. While int takes up 4 bytes, short int takes up 2 bytes, and the long int 8 bytes of memory.

Note

There is a shorter syntax available you can use any of them:

  • short is equivalent to short int;
  • long is equivalent to long int;

So, we need to use long (long int) to store large values.
In contrast, we can use short (short int) to take up less memory. However, its range is narrower because of that. Here is the table with ranges that a type can hold:

Note

On Windows, long also takes up 4 bytes, just like int.

If you are working on Windows, you should use long long int (or long long) instead of just long.

Task

  • Change the type of the variables so it can hold a larger number.
  • Output the result of the expression.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

short and long are the type modifiers.

cpp

main

copy

              
12345678910

            
#include <iostream>

int main()
{
	long int large_number = 4000000000;
  	short int small_number = 45;
  	
	std::cout << "Large number: " << large_number << std::endl;
	std::cout << "Small number: " << small_number <<std:: endl;  
}

What those type modifiers do is change the size of a type. While int takes up 4 bytes, short int takes up 2 bytes, and the long int 8 bytes of memory.

Note

There is a shorter syntax available you can use any of them:

  • short is equivalent to short int;
  • long is equivalent to long int;

So, we need to use long (long int) to store large values.
In contrast, we can use short (short int) to take up less memory. However, its range is narrower because of that. Here is the table with ranges that a type can hold:

Note

On Windows, long also takes up 4 bytes, just like int.

If you are working on Windows, you should use long long int (or long long) instead of just long.

Task

  • Change the type of the variables so it can hold a larger number.
  • Output the result of the expression.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Section 2. Chapter 3
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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