For example:#define JAN 1 #define FEB 2 #define MAR 3 #define APR 4 These statements are defining 1, 2, 3 and 4 by constant name JAN, FEB, MAR and APR respectively. Here we need to define each value separately.But, in case of "enum" there is no need define each value. We can...
Example 3: Printing enum's constant name and value using foreach loopHere, we are using Enum.GetValues(typeof(Days) which returns an array of all enum values and to get the name of enum, we are using Enum.GetName(typeof(Days), day). Here, Days is the enum name and day is the ...
In the following example, we are declaring an enumeration type, declaring an enum's variable/object, and accessing enum constants. Consider the following example −Open Compiler #include <iostream> using namespace std; // Define an enumeration called Day, for a days of week enum Day { ...
We can use enums in C in different cases, some of which are listed below −To store constant values, for example, weekdays, months, directions, colors, etc. Enums are used for using flags, status codes, etc. Enums can be used while using switch-case statements in C....
In the following example, we define an enumeration namedColorand specify the six color names as the enumerated constants. Since none of these constants have the explicit value assigned to them, the integral values are deduced with their positions starting from zero. This code implements a color ...
Example Run this code #include <cstdint>#include <iostream>// enum that takes 16 bitsenumsmallenum:std::int16_t{a, b, c};// color may be red (value 0), yellow (value 1), green (value 20), or blue (value 21)enumcolor{red, yellow, green=20, blue};// altitude may be altitud...
但是当我尝试在另一个源文件 example.c 中使用它时,它显示“对状态的未定义引用”: #include"main.h"voidloop(){ UART(state); } Run Code Online (Sandbox Code Playgroud) cenumerationextern Con*_*ese lucky-day 2 推荐指数 1 解决办法 2万 ...
In C, the enum keyword is required to declare a variable of typeenumeration. In C++, the enum keyword can be omitted. For example, given the Days enumeration from the code below: Days tomorrow; // Legal in C++ only Example // enumeration_declarations3.cpp // compile with: /EHsc #includ...
The following code demonstrates how you can override the default setting which makes the default values integers. In this example, the enumeration values are set to bytes. enum byteEnum : byte { A, B } You can also override the default numerical values of any and all of the enumeration ele...
enum letter {A, B, C, D}; // valid, regular type name usage color pic1 = color :: white; // valid, elaborated type usage enum color pic2 = color :: red; You cannot useenum classorenum structin the elaborated type specifier. For example: ...