Here, we have described and declared the variable b.

We can also define the multiple variables like the following. Printf('The size of an integer is: %zu ', sizeof(a)) We can define the integers in the C program using the following syntax. We can check for other integer types as well. Now, it will generate the output like this. It will generate the compiled version called a.out and now run that file using the following command./a.out

Now, save the above file as the datatype.c and compile the file using the following command. Printf('The size of an integer is: %zu ', sizeof(int)) Let us take an example to determine the sizeof an integer. You can determine the size of an int using the sizeof() function provided by C Language. These are the following various modifiers for C Programming. We can decrease that range by using the short int, the 2 bytes. We can increase this range by using long int, the 8 bytes. i.e., The storage space for int data type is 4 bytes for the 32-bit processor. Modifiers are prefixed with the essential data types to modify (either increase or decrease) the amount of storage space allocated to the variable. The amount of memory space to be allocated for the variable is derived by the modifiers. If you want to use an integer value that crosses above the limit, you can go for a long int for which the limits are very high. Using the 16-bit processor, 2 bytes (16 bit) of memory will be allocated for the int data type.

It is used to arrange a list of items in a sequence and is used for the fixed sequence.It varies depending on the CPU processor that we use. The data types which are composed from the primitive data types are known as Derived data types which can be array, structure, union etc.Įnumerated data types are also called as user defined data types.Įnumerated data types are declared by using the enum keyword. C language provides various floating point data type float, double, long double etc.įirst we will see the size and range of the char type data type which are as follows:Īccording to compiler means by bit version the size and range can be varied from system to system. C language having two types of character data type char (signed char) and unsigned char.ģ) Floating point data type: Floating point data type means value with floating point values. C language having integer type data types like short (signed), int (signed), unsigned short, unsigned int, long(signed), unsigned long.Ģ) Character data type: this is used to store a single character.

The primitive data types in C language are as follows:ġ) Integer data type: it is used to store integer values. The following table shows the size and range of the basic data types.ġ) Basic or primitive data type: The data types which are predefined in the C language is called as basic data type in C which are used to define the type of value stored in any variable, constant or array. Generally Datatypes in C Language are Primitive data type which contains char, unsigned char, short, unsigned short, int, unsigned int, long, unsigned long, float, double, long double.ĭerived data type which contains array, structure, union etc.Įnumerated data types is also called as user defined data types declared using enum keyword.ĭata Types In C, basic data types are based on the integer and each and every data type has its own range and capacity or size so that they can contain their sized value.

Basic data types in c