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