Programa C++ para imprimir el tipo de datos de rango como int, char, short.
Tipos de datos firmados
METHOD 1.) calculate total number of bits by multiplying sizeof with 8 (say n) 2.) Calculate -2^(n-1) for minimum range 3.) Calculate (2^(n-1))-1 for maximum range
// CPP program to calculate
// range of signed data type
#include <bits/stdc++.h>
#define SIZE(x) sizeof(x) * 8
using namespace std;
// function to calculate range of
//unsigned data type
void printSignedRange(int count)
{
int min = pow(2, count - 1);
int max = pow(2, count - 1) - 1;
printf("%d to %d", min * (-1), max);
}
// DRIVER program
int main()
{
cout << "signed char: ";
printSignedRange(SIZE(char));
cout << "\nsigned int: ";
printSignedRange(SIZE(int));
cout << "\nsigned short int: ";
printSignedRange(SIZE(short int));
return 0;
}
Producción:
signed char: -128 to 127 signed int: -2147483648 to 2147483647 signed short int: -32768 to 32767
Tipos de datos sin firmar
METHOD 1.)Find number of bits by multiplying result of sizeof with 8 say n 2.)minimum range is always zero for unsigned data type 3.)for maximum range calculate 2^n-1
// CPP program to calculate range
// of given unsigned data type
#include <bits/stdc++.h>
#define SIZE(x) sizeof(x) * 8
using namespace std;
// function to calculate range
// of given unsigned data type
void UnsignedRange(int count)
{
// calculate 2^number of bits
unsigned int max = pow(2, count) - 1;
cout << "0 to " << max;
}
// DRIVER program
int main()
{
cout << "unsigned char: ";
UnsignedRange(SIZE(unsigned char));
cout << "\nunsigned int: ";
UnsignedRange(SIZE(unsigned int));
cout << "\nunsigned short int: ";
UnsignedRange(SIZE(unsigned short));
return 0;
}
Producción:
unsigned char: 0 to 255 unsigned int: 0 to 4294967295 unsigned short int: 0 to 65535
Publicación traducida automáticamente
Artículo escrito por Shahnawaz_Ali y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA