C++ 速查手冊 V1.00 - 單元 3 範例

u0301.cpp

?

1 2 3 4 5 6 7 8 9 10 11 12 13

#include <iostream>   int main() {     std::cout << "bool: "               << sizeof(bool)               << std::endl;               return 0; }    /* Kaiching Chang    u0301.cpp    2014-02 */

u0302.cpp

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

#include <iostream>   int main() {     std::cout << "char: "               << sizeof(char)               << std::endl;        std::cout << "wchar_t: "               << sizeof(wchar_t)               << std::endl;     std::cout << "char16_t: "               << sizeof(char16_t)               << std::endl;     std::cout << "char32_t: "               << sizeof(char32_t)               << std::endl;          return 0; }    /* Kaiching Chang    u0302.cpp    2014-02 */

u0303.cpp

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79

#include <iostream>   int main() {    std::cout << "short : "              << sizeof(short)              << std::endl;    std::cout << "short int : "              << sizeof(short int)              << std::endl;    std::cout << "signed short : "              << sizeof(signed short)              << std::endl;    std::cout << "signed short int : "              << sizeof(signed short int)              << std::endl;    std::cout << "unsigned short : "              << sizeof(unsigned short)              << std::endl;    std::cout << "unsigned short int : "              << sizeof(unsigned short int)              << std::endl;    std::cout << "int : "              << sizeof(int)              << std::endl;    std::cout << "signed : "              << sizeof(signed)              << std::endl;    std::cout << "signed int : "              << sizeof(signed int)              << std::endl;    std::cout << "unsigned : "              << sizeof(unsigned)              << std::endl;    std::cout << "unsigned int : "              << sizeof(unsigned int)              << std::endl;    std::cout << "long : "              << sizeof(long)              << std::endl;    std::cout << "long int : "              << sizeof(long int)              << std::endl;    std::cout << "signed long : "              << sizeof(signed long)              << std::endl;    std::cout << "signed long int : "              << sizeof(signed long int)              << std::endl;    std::cout << "unsigned long : "              << sizeof(unsigned long)              << std::endl;    std::cout << "unsigned long int : "              << sizeof(unsigned long int)              << std::endl;    std::cout << "long long : "              << sizeof(long long)              << std::endl;    std::cout << "long long int : "              << sizeof(long long int)              << std::endl;    std::cout << "signed long long : "              << sizeof(signed long long)              << std::endl;    std::cout << "signed long long int: "              << sizeof(signed long long int)              << std::endl;    std::cout << "unsigned long long : "              << sizeof(unsigned long long)              << std::endl;    std::cout << "unsigned long long int: "              << sizeof(unsigned long long int)              << std::endl;      return 0; }   /* Kaiching Chang    u0303.cpp    2014-02 */

u0304.cpp

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

#include <iostream>    int main() {    std::cout << "float: "              << sizeof(float)              << std::endl;    std::cout << "double: "              << sizeof(double)              << std::endl;    std::cout << "long double: "              << sizeof(long double)              << std::endl;       return 0; }   /* Kaiching Chang    u0304.cpp    2014-02 */

the end