In this tutorial, i am going to show you how to find the range of data types in c program.
C Programs to Find the Range of Data Types
/**
* C program to find range of data type
*/
#include <stdio.h>
void printUnsignedRange(int bytes)
{
int bits = 8 * bytes;
unsigned long long to = (1LLU << (bits - 1)) + ((1LL << (bits - 1)) - 1);;
printf(" 0 to %llu\n\n", to);
}
void printSignedRange(int bytes)
{
int bits = 8 * bytes;
long long from = -(1LL << (bits - 1));
long long to = (1LL << (bits - 1)) - 1;
printf(" %lld to %lld\n\n", from, to);
}
int main()
{
printf("Range of char =");
printSignedRange(sizeof(char));
printf("Range of unsigned char =");
printUnsignedRange(sizeof(unsigned char));
printf("Range of short =");
printSignedRange(sizeof(short));
printf("Range of unsigned short =");
printUnsignedRange(sizeof(unsigned short));
printf("Range of int =");
printSignedRange(sizeof(int));
printf("Range of unsigned int =");
printUnsignedRange(sizeof(unsigned int));
printf("Range of long =");
printSignedRange(sizeof(long));
printf("Range of unsigned long =");
printUnsignedRange(sizeof(unsigned long));
printf("Range of long long =");
printSignedRange(sizeof(long long));
printf("Range of unsigned long long =");
printUnsignedRange(sizeof(unsigned long long));
return 0;
}
The result of the above c program; as follows:
Range of char = -128 to 127 Range of unsigned char = 0 to 255 Range of short = -32768 to 32767 Range of unsigned short = 0 to 65535 Range of int = -2147483648 to 2147483647 Range of unsigned int = 0 to 4294967295 Range of long = -9223372036854775808 to 9223372036854775807 Range of unsigned long = 0 to 18446744073709551615 Range of long long = -9223372036854775808 to 9223372036854775807 Range of unsigned long long = 0 to 18446744073709551615