C/C++中各种类型int、long、double、char表示范围（最大最小值）

1 #include<iostream>
2 #include<string>
3 #include <limits>
4 using namespace std;
5
6 int main()
7 {
8     cout << "type: \t\t" << "************size**************"<< endl;
9     cout << "bool: \t\t" << "所占字节数：" << sizeof(bool);
10     cout << "\t最大值：" << (numeric_limits<bool>::max)();
11     cout << "\t\t最小值：" << (numeric_limits<bool>::min)() << endl;
12     cout << "char: \t\t" << "所占字节数：" << sizeof(char);
13     cout << "\t最大值：" << (numeric_limits<char>::max)();
14     cout << "\t\t最小值：" << (numeric_limits<char>::min)() << endl;
15     cout << "signed char: \t" << "所占字节数：" << sizeof(signed char);
16     cout << "\t最大值：" << (numeric_limits<signed char>::max)();
17     cout << "\t\t最小值：" << (numeric_limits<signed char>::min)() << endl;
18     cout << "unsigned char: \t" << "所占字节数：" << sizeof(unsigned char);
19     cout << "\t最大值：" << (numeric_limits<unsigned char>::max)();
20     cout << "\t\t最小值：" << (numeric_limits<unsigned char>::min)() << endl;
21     cout << "wchar_t: \t" << "所占字节数：" << sizeof(wchar_t);
22     cout << "\t最大值：" << (numeric_limits<wchar_t>::max)();
23     cout << "\t\t最小值：" << (numeric_limits<wchar_t>::min)() << endl;
24     cout << "short: \t\t" << "所占字节数：" << sizeof(short);
25     cout << "\t最大值：" << (numeric_limits<short>::max)();
26     cout << "\t\t最小值：" << (numeric_limits<short>::min)() << endl;
27     cout << "int: \t\t" << "所占字节数：" << sizeof(int);
28     cout << "\t最大值：" << (numeric_limits<int>::max)();
29     cout << "\t最小值：" << (numeric_limits<int>::min)() << endl;
30     cout << "unsigned: \t" << "所占字节数：" << sizeof(unsigned);
31     cout << "\t最大值：" << (numeric_limits<unsigned>::max)();
32     cout << "\t最小值：" << (numeric_limits<unsigned>::min)() << endl;
33     cout << "long: \t\t" << "所占字节数：" << sizeof(long);
34     cout << "\t最大值：" << (numeric_limits<long>::max)();
35     cout << "\t最小值：" << (numeric_limits<long>::min)() << endl;
36     cout << "unsigned long: \t" << "所占字节数：" << sizeof(unsigned long);
37     cout << "\t最大值：" << (numeric_limits<unsigned long>::max)();
38     cout << "\t最小值：" << (numeric_limits<unsigned long>::min)() << endl;
39     cout << "double: \t" << "所占字节数：" << sizeof(double);
40     cout << "\t最大值：" << (numeric_limits<double>::max)();
41     cout << "\t最小值：" << (numeric_limits<double>::min)() << endl;
42     cout << "long double: \t" << "所占字节数：" << sizeof(long double);
43     cout << "\t最大值：" << (numeric_limits<long double>::max)();
44     cout << "\t最小值：" << (numeric_limits<long double>::min)() << endl;
45     cout << "float: \t\t" << "所占字节数：" << sizeof(float);
46     cout << "\t最大值：" << (numeric_limits<float>::max)();
47     cout << "\t最小值：" << (numeric_limits<float>::min)() << endl;
48     cout << "size_t: \t" << "所占字节数：" << sizeof(size_t);
49     cout << "\t最大值：" << (numeric_limits<size_t>::max)();
50     cout << "\t最小值：" << (numeric_limits<size_t>::min)() << endl;
51     cout << "string: \t" << "所占字节数：" << sizeof(string) << endl;
52     // << "\t最大值：" << (numeric_limits<string>::max)() << "\t最小值：" << (numeric_limits<string>::min)() << endl;
53     cout << "type: \t\t" << "************size**************"<< endl;
54     return 0;
55 }