unsigned char 1 от 0 до 255
wchar_t 2 от 0 до 65535
short 2 от -32768 to +32767
unsigned short 2 от 0 до 65535
int 4 от -2147483648 до 2147483647
unsigned int 4 от 0 до 4294967295
long 4 от -2147483648 до 2147483647
unsigned long 4 от 0 до 4294967295
float 4 ± 3,4x10±38, примерно с 7-значной точностью
double 8 ± 1,7x10*308, примерно с 15-значной точностью
long double 8 ± 1,7x10*308, примерно с 15-значной точностью

#include "stdafx.h"

#include <iostream>

using namespace std;

void main( void )

{

cout << " (unsigned)int = " << sizeof(int) << endl;

cout << " (unsigned)short = " << sizeof(short) << endl;

cout << " (unsigned)char = " << sizeof(char) << endl;

cout << " (unsigned)float = " << sizeof(float) << endl;

cout << " (unsigned)double = " << sizeof(double) << endl;

cout << " (unsigned)long = " << sizeof(long) << endl;

cout << " (unsigned)long double = " << sizeof(long double) << endl;

cout << " (unsigned)long long int = " << sizeof(long long int) << endl;

cout << " (unsigned)unsigned long long int = " << sizeof(unsigned long long int) << endl;

cout << " (unsigned)__int64 = " << sizeof(__int64) << endl;

}