Data Types in C Programming

There are four basic data types supported by C. Table lists the basic data types with their size in bytes and the range of values.


Type

Size In bytes

 
Range
 
char
  1
-128 to +127
 
int
 
2
 
-32768 to +32767
float
4
3.4e-38 to 3.4e+38
double
8
1.7e-308 to 1.7e+308
The C provides different qualifiers like signed, unsigned, short and long. By applying the qualifiers to the basic data types, we can change the range of our data type as per need. Table lists the various data types available by applying the qualifiers to the basic data types with their size and range of values. 
Type
Size in bytes
Range
char(signed char)
1
-128 to +127
unsinged char
1
0 to 255
int(signed int)
2
-32768 to +32767
Unsinged int
2
0 to 65535
short int(signed short int)
2
-32768 to +32767
unsigned short int
2
0 to 65535
long int(signed long int)
4
-2147483648 to +2147483647
unsigned long int
4
0 to 4294967295
float
4
3.4e-38 to 3.4e+38
double
8
1.7e-308 to 1.7+308
long double
10
3.4E-4932 to 3.4E+4932

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