Range of Data Types in C

January 14, 2023

Range of Data Types in C Programming Language

Data types in C help the programmers, to work with different types of data in a program. Using which we can accept and print different types of data. These data types have a definite range of data, and we have to choose the datatype according to their range and our data set. Every datatype has a range according to ASCII values of the characters in C.

Range of various Data Types

As we have discussed above that there are many different data types in C, and every data type has a pre-defined range of data, under which it works, so we need to be smart while choosing a datatype in our program, below is a table which represents the different data-type, and their data range.

Name Of The Datatype	Range of Datatype
Double	2.3E-308 to 1.7E+308
Long Double	3.4E-4932 to 1.1E+4932
Long	-9223372036854775808 to 9223372036854775807
Unsigned Long	0 to 18446744073709551615
Float	.2E-38 to 3.4E+38
int	-32,768 to 32,767 or -2,147,483,648 to 2,147,483,647
unsigned int	0 to 65,535 or 0 to 4,294,967,295
short	-32,768 to 32,767
unsigned short	0 to 65,535
char	-128 to 127 or 0 to 255
signed char	-128 to 127
unsigned char	0 to 255

Lets’s see a C program, for finding the range of the datatypes from the compiler itself. Yes, we can find out the range of the datatypes, from a C code also.

Keywords and Identifiers

Tokens in C

Variables in C

Scope Rules in C

Program to calculate size ofdata type

C code for finding the range of Datatypes :

Run

#include<stdio.h> 
#include<stdlib.h> 
#include<limits.h> 
#include<float.h>
int main()
{

    printf("CHAR_BIT : %d\n", CHAR_BIT);
    printf("CHAR_MAX : %d\n", CHAR_MAX);
    printf("CHAR_MIN : %d\n", CHAR_MIN);
    printf("INT_MAX : %d\n", INT_MAX);
    printf("INT_MIN : %d\n", INT_MIN);
    printf("LONG_MAX : %ld\n", (long) LONG_MAX);
    printf("LONG_MIN : %ld\n", (long) LONG_MIN);
    printf("SCHAR_MAX : %d\n", SCHAR_MAX);
    printf("SCHAR_MIN : %d\n", SCHAR_MIN);
    printf("SHRT_MAX : %d\n", SHRT_MAX);
    printf("SHRT_MIN : %d\n", SHRT_MIN);
    printf("UCHAR_MAX : %d\n", UCHAR_MAX);
    printf("UINT_MAX : %u\n", (unsigned int) UINT_MAX);
    printf("ULONG_MAX : %lu\n", (unsigned long) ULONG_MAX);
    printf("USHRT_MAX : %d\n", (unsigned short) USHRT_MAX);

    return 0;
}

Output :

CHAR_BIT : 8
CHAR_MAX : 128 
CHAR_MIN : -127
INT_MAX : 2147483647
INT_MIN : -2147483648
LONG_MAX : 9223372036854775807
LONG_MIN : -9223372036854775808
SCHAR_MAX : 127
SCHAR_MIN : -128
SHRT_MAX : 32767
SHRT_MIN : -32768
UCHAR_MAX : 255
UINT_MAX : 4294967295
ULONG_MAX : 18446744073709551615
USHRT_MAX : 65535

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Range of Data Types in C