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cast int to enum c#
To cast an integer to an enum in C#, you can use the Enum.Parse
method. Here’s an example:
csharpenum MyEnum { Value1 = 1, Value2 = 2, Value3 = 3 } int intValue = 2; MyEnum enumValue = (MyEnum)Enum.Parse(typeof(MyEnum), intValue.ToString());
In this example, we define an enum called MyEnum
with three values, each assigned an integer value. We also define an integer variable called intValue
with a value of 2.
To cast the integer value to the enum value, we use the Enum.Parse
method. The first argument of Enum.Parse
is the type of the enum (typeof(MyEnum)
), and the second argument is a string representation of the integer value (intValue.ToString()
). We then cast the result to MyEnum
.
Note that if the integer value doesn’t correspond to any of the enum values, an exception will be thrown. You can use the Enum.IsDefined
method to check if an integer value corresponds to a valid enum value before casting.
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How to cast int to enum in C#
How to convert int to enum in C?
To convert an int
to an enum
in C, you can simply cast the int
value to the corresponding enum
type.
For example, suppose you have the following enum
type:
cenum day_of_week { SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY };
And you have an int
variable day
that contains the value of the day of the week as an integer (e.g., 0 for Sunday, 1 for Monday, etc.). To convert day
to the corresponding enum
value, you can use a cast like this:
cint day = 1; // Monday enum day_of_week day_enum = (enum day_of_week)day;
This will convert the int
value 1
to the corresponding enum
value MONDAY
. Note that this assumes that the int
value is a valid value for the enum
. If the int
value is not a valid value for the enum
, the behavior is undefined.
Also, it is worth noting that some compilers may issue a warning when you perform this type of cast, because it can be dangerous if the int
value is not a valid value for the enum
. To avoid this warning, you can use a switch statement to explicitly check each possible value of the int
and assign the corresponding enum
value, like this:
cint day = 1; // Monday enum day_of_week day_enum; switch (day) { case 0: day_enum = SUNDAY; break; case 1: day_enum = MONDAY; break; case 2: day_enum = TUESDAY; break; case 3: day_enum = WEDNESDAY; break; case 4: day_enum = THURSDAY; break; case 5: day_enum = FRIDAY; break; case 6: day_enum = SATURDAY; break; default: // handle error case break; }
How to convert int to enum string in C#?
In C#, you can convert an integer value to an enum string by using the Enum.GetName
method. Here’s an example:
csharpenum MyEnum { Value1, Value2, Value3 } int intValue = 2; // The integer value we want to convert string enumString = Enum.GetName(typeof(MyEnum), intValue); // Convert the integer to enum string Console.WriteLine(enumString); // Output: "Value3"
In this example, we define an enum MyEnum
with three values. We then create an integer variable intValue
and set it to the value 2
. To convert this integer value to its corresponding enum string, we use the Enum.GetName
method, passing in the type of the enum (typeof(MyEnum)
) and the integer value (intValue
) as arguments. The GetName
method returns the string representation of the enum value with the specified integer value, which in this case is "Value3"
. Finally, we output the enum string to the console.
Can we assign value to enum in C?
Yes, it is possible to assign values to enums in C. In C, enums are essentially a way to assign names to integers, where the first name is assigned the value 0, and each subsequent name is assigned the next integer value.
However, you can assign specific integer values to enum names if you wish. For example:
javaenum Color { RED = 1, GREEN = 2, BLUE = 4 };
In this example, RED
is assigned the integer value 1, GREEN
is assigned the integer value 2, and BLUE
is assigned the integer value 4. The integer values do not need to be sequential or unique, and they can be negative.
It is worth noting that when you assign integer values to enum names, you lose the automatic incrementing behavior that enums normally have. If you do not assign values to all the names in the enum, the remaining names will be automatically assigned values in sequence, starting from the last explicitly assigned value plus one.
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c cast int to enum out-of-range
When casting an integer to an enum type, it is possible to encounter an out-of-range error. This occurs when the integer value being casted is not within the range of valid enum values.
For example, suppose you have the following enum:
javaenum Color { RED, GREEN, BLUE };
If you cast an integer value of 5 to this enum, you will get undefined behavior because 5 is not a valid value in the enum. Similarly, if you cast an integer value of -1 to this enum, you will also get undefined behavior because the enum values start at 0.
To avoid this issue, it’s important to ensure that the integer value being casted is within the range of valid enum values. You can do this by checking the integer value against the enum values using a switch statement or by using an if statement to check if the integer value is within a certain range.
int to enum c#
To convert an integer value to its corresponding enum value in C#, you can use the Enum.Parse
method.
Assuming you have an enum type named MyEnum
and an integer variable named myIntValue
, you can use the following code:
scssMyEnum myEnumValue = (MyEnum) Enum.Parse(typeof(MyEnum), myIntValue.ToString());
Here, we first convert the integer value to a string using the ToString()
method, and then use the Enum.Parse
method to parse the string as an enum value of type MyEnum
.
Note that the Enum.Parse
method throws an exception if the string value cannot be parsed as a valid enum value. Therefore, you may want to wrap the code in a try-catch block to handle any potential exceptions.
You can see some more information related to cast int to enum c# here
- C/C++: How to convert int to enum? – GameDev.net
- How do I cast int to enum in C#? – Stack Overflow
- C/C++: How to convert int to enum? – GameDev.net
- C#: How to convert int to enum? – Josip Miskovic
- Assign values to enum in C – Stack Overflow
- C# Enumerations Type – Enum – Tutorials Teacher
- Convert int to enum in C# – TutorialsTeacher
- How to cast int to enum in C# – Quora
- C#: How to convert int to enum? – Josip Miskovic
- WARNING #6021 Casting ‘int’ to Enum may cause different …
- Cast int to enum in C#, C# – rextester
- 2 ways to convert/cast int to enum in C# – Arunkumar Blog
- type casting • enumeration
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