整数分long int、int、char、bool,浮点数分

[问答题]

整数分long int、int、char、bool,浮点数分float、double、long double,试分别输出各类型的字节长度和位长, 输出形式如:

long int: 4 byte 32 bit

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Smizy

//-----------------------------------
//EX0302.cpp
//类型长度与位长
//-----------------------------------
#include<iostream>
using namespace std;
//-----------------------------------
int main() {
    int tn=sizeof(long int);
    cout<<"long int: "<<tn<<" byte "<<tn*8<<" bits\n";
    int tn=sizeof(int);
    cout<<"int: "<<tn<<" byte "<<tn*8<<" bits\n";
    int tn=sizeof(char);
    cout<<"char: "<<tn<<" byte "<<tn*8<<" bits\n";
    int tn=sizeof(bool);
    cout<<"bool: "<<tn<<" byte "<<tn*8<<" bits\n";
    int tn=sizeof(float);
    cout<<"float: "<<tn<<" byte "<<tn*8<<" bits\n";
    int tn=sizeof(double);
    cout<<"double: "<<tn<<" byte "<<tn*8<<" bits\n";
    int tn=sizeof(long double);
    cout<<"long double: "<<tn<<" byte "<<tn*8<<" bits\n";
}//----------------------------------

运行结果为：

long int: 4 byte 32 bit

int: 4 byte 32 bit

char: 1 byte 8 bit

bool: 1 byte 8 bit

float: 4 byte 32 bit

long int: 4 byte 32 bit

double: 8 byte 64 bit

long double: 10 byte 80 bit

发表于 2018-05-07 20:33:27 回复(0)