Reference: http://en.cppreference.com/w/cpp/language/enumDeclare/define enumerationWe can declare/define "enumeration/enum" given as below:enum month{ JAN=1,FEB,MAR,APR,MAY,JUN,JUL,AUG,SEP,AUG,SEP,OCT,NOV,DEC}months; enum week{SUN=1,MON,TUE,WED,THU,FRI,SAT}days; enum bool{FALSE=0...
Flag repeated expressions cast back into an enumeration. 标记反复转换,最后变成枚举类型的表达式。 原文链接: https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#enum4-define-operations-on-enumerations-for-safe-and-simple-use 觉得本文有帮助?请分享给更多人。 关注【面向对象思考...
EnumAll.cpp示例应用程序将所有属性置于存储文件的所有属性集中。 C++复制 //+===/// To Build: cl /GX enumall.cpp/// The following code example dumps all the properties in all property// sets of a storage file.///+===#defineUNICODE#define_UNICODE#include<stdio.h>#include<windows.h>#prag...
int是默认的整数类型。int和C语言枚举类型兼容。 Example(示例) 代码语言:javascript 代码运行次数:0 复制 Cloud Studio代码运行 enumclassDirection:char{n,s,e,w,ne,nw,se,sw};// underlying type saves spaceenumclassWeb_color:int32_t{red=0xFF0000,green=0x00FF00,blue=0x0000FF};// underlying type ...
//example2.cpp#include<iostream>usingnamespacestd;structstudent {charname[6];intage;char* GetName(void){returnname;};intGetAge(void){returnage;}; }; union score {inti_sc;floatf_sc;intGetInt(void){returni_sc;};floatGetFloat(void){returnf_sc;}; ...
A C/C++ enum [N4140 7.2]. For example, the types MyEnum and MyScopedEnum in: enum MyEnum { MyEnumConstant }; enum class MyScopedEnum { MyScopedEnumConstant }; This includes C++ scoped enums, see the ScopedEnum QL class.Import path import cpp ...
using System; [Flags] enum Colors { None=0, Red = 1, Green = 2, Blue = 4 }; public class Example { public static void Main() { string[] colorStrings = { "0", "2", "8", "blue", "Blue", "Yellow", "Red, Green" }; foreach (string colorString in colorStrings) { try ...
The strong typing rules means that each enum class is considered a unique type. This means that the compiler willnotimplicitly compare enumerators from different enumerations. If you try to do so, the compiler will throw an error, as shown in the example above. ...
But in C++11, we can do even better, specifying exact sizes for enums, using cstdint. <cstdint> One problem that C++ has suffered from is a lack of standard types that provide fixed, well-defined sizes. For example, sometimes you want to have a 32-bit integer, not just an int that...
Note that the compiler emits error messages if the constant expression that defines the value of an enumerator cannot be represented by theunderlying-type. However, the compiler does not report an error for a value that is inappropriate for the underlying type. For example: ...