• C++中各种基本数据类型大小一览


      10^9以下用int10^18以下用long long

      C++代码如下

    #include<iostream>
    #include<string>
    #include <limits>
    using namespace std;
    
    int main()
    {
        cout << "type: 			" << "************size**************" << endl;
        cout << "bool: 			" << "numOfBytes:" << sizeof(bool);
        cout << "		maxValue:" << (numeric_limits<bool>::max)();
        cout << "				minValue:" << (numeric_limits<bool>::min)() << endl;
    
        cout << "char: 			" << "numOfBytes:" << sizeof(char);
        cout << "		maxValue:" << (numeric_limits<char>::max)();
        cout << "				minValue:" << (numeric_limits<char>::min)() << endl;
    
        cout << "signed char: 		" << "numOfBytes:" << sizeof(signed char);
        cout << "		maxValue:" << (numeric_limits<signed char>::max)();
        cout << "				minValue:" << (numeric_limits<signed char>::min)() << endl;
    
        cout << "unsigned char: 		" << "numOfBytes:" << sizeof(unsigned char);
        cout << "		maxValue:" << (numeric_limits<unsigned char>::max)();
        cout << "				minValue:" << (numeric_limits<unsigned char>::min)() << endl;
    
        cout << "wchar_t: 		" << "numOfBytes:" << sizeof(wchar_t);
        cout << "		maxValue:" << (numeric_limits<wchar_t>::max)();
        cout << "				minValue:" << (numeric_limits<wchar_t>::min)() << endl;
    
        cout << "short: 			" << "numOfBytes:" << sizeof(short);
        cout << "		maxValue:" << (numeric_limits<short>::max)();
        cout << "				minValue:" << (numeric_limits<short>::min)() << endl;
    
        cout << "int: 			" << "numOfBytes:" << sizeof(int);
        cout << "		maxValue:" << (numeric_limits<int>::max)();
        cout << "			minValue:" << (numeric_limits<int>::min)() << endl;
    
        cout << "unsigned: 		" << "numOfBytes:" << sizeof(unsigned);
        cout << "		maxValue:" << (numeric_limits<unsigned>::max)();
        cout << "			minValue:" << (numeric_limits<unsigned>::min)() << endl;
    
        cout << "long: 			" << "numOfBytes:" << sizeof(long);
        cout << "		maxValue:" << (numeric_limits<long>::max)();
        cout << "			minValue:" << (numeric_limits<long>::min)() << endl;
    
        cout << "long long: 		" << "numOfBytes:" << sizeof(long long);
        cout << "		maxValue:" << (numeric_limits<long long>::max)();
        cout << "		minValue:" << (numeric_limits<long long>::min)() << endl;
    
        cout << "unsigned long: 		" << "numOfBytes:" << sizeof(unsigned long);
        cout << "		maxValue:" << (numeric_limits<unsigned long>::max)();
        cout << "			minValue:" << (numeric_limits<unsigned long>::min)() << endl;
    
        cout << "double: 		" << "numOfBytes:" << sizeof(double);
        cout << "		maxValue:" << (numeric_limits<double>::max)();
        cout << "			minValue:" << (numeric_limits<double>::min)() << endl;
    
        cout << "long double: 		" << "numOfBytes:" << sizeof(long double);
        cout << "		maxValue:" << (numeric_limits<long double>::max)();
        cout << "			minValue:" << (numeric_limits<long double>::min)() << endl;
    
        cout << "float: 			" << "numOfBytes:" << sizeof(float);
        cout << "		maxValue:" << (numeric_limits<float>::max)();
        cout << "			minValue:" << (numeric_limits<float>::min)() << endl;
    
        cout << "size_t: 		" << "numOfBytes:" << sizeof(size_t);
        cout << "		maxValue:" << (numeric_limits<size_t>::max)();
        cout << "		minValue:" << (numeric_limits<size_t>::min)() << endl;
    
        cout << "			" << "************size**************" << endl;
        return 0;
    }
    

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  • 原文地址:https://www.cnblogs.com/flyingrun/p/13485201.html
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