Created
September 7, 2024 17:42
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Replicating C Pointer in C#
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| // 1) 'ref' | |
| // ref keyword means "pass by reference" - edits | |
| // made in this function affect the actual variable | |
| int someNum = 5; | |
| AddOne(ref someNum); | |
| // someNum now = 6 | |
| void AddOne(ref int i) | |
| { | |
| i++; | |
| } | |
| // 2) 'return' | |
| // As stated you could return the value instead | |
| int someNum = 5; | |
| // Call AddOne, passing in our someNum value and set the value | |
| // that AddOne returns back into out someNum variable. | |
| someNum = AddOne(someNum); | |
| int AddOne(int i) | |
| { | |
| // You could return right away by doing something like | |
| // return ++i; | |
| // however for verbosity, im not in this example. | |
| i += 1; | |
| return i; | |
| } | |
| // 3) 'Extension method' | |
| int someNum = 5; | |
| // I cant think of how to correctly say what an extension method | |
| // actually is so heres a link: | |
| // https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/extension-methods | |
| // https://www.dotnetperls.com/extension | |
| someNum.AddOne(); | |
| public static int AddOne(this int i) | |
| { | |
| i += 1; | |
| return i; | |
| } |
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