Data types in C++:
In this post of shapes in C, we will discuss fifth C tutorial
for beginners in which we will tell you about C++ Data types . The purpose of
C++ program is to manipulate different
data in solution of a problem. To manipulate data, we need to store our data somewhere. For that
purpose, we have data types in C++. Data type is a set of values together with
a set of operations.
In C++, data type consists of two things:
- Range of data type.
- Operations allowed on it.
C++ data types fall in three categories:
- Simple
- Structured
- Pointer
For now, we are going to focus on simple data types.
Simple data types are the fundamental data types in C++.
They further fall in three categories.
- Integral
- Floating point
- Enumeration
Integral:
Integral data types are further classified in nine
categories.
- Char
- Short
- Int
- Long
- Bool
- Unsigned Char
- Unsigned short
- Unsigned int
- Unsigned long
Int Data type:
Below are the following rules for int data type.
- Positive integers don’t need a + sign in front of them.
- No commas are used within an integer.
Size:
It has a size of 4 bytes.Bool Data type:
It is a logical data type and it has only two values: true
and false. Its purpose is to handle logical expressions.
Char Data type:
It is the smallest integral data type. It is used to represent
characters. It can represent every key on your keyboard on the basis of ASCII
and EBCDIC codes. ADCII has 128 values and EBCDIC has 256 values.
Floating point data types:
Float:
It is used in C++ to represent any real
number between -3.4E+38 and 3.4E+38. The memory allocated for it is 4 bytes.
Double:
It is used in C++ to represent any real number
between -1.7E+308 and 1.7E+308. The memory allocated for it is 8 bytes.
Final words:
In this c tutorial for beginners of shapes in c, we have learnt about c data types,
its size and range.These c programming tutorials will definitely help you out in your problems.
