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Code Issues Releases Wiki Activity

[CSharp/en]Added ref and out parameters

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Laoujin
2015-01-31 21:45:13 +01:00
parent 69e38974ae
commit 04c4433433
1 changed files with 13 additions and 0 deletions
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csharp.html.markdown
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@@ -380,6 +380,15 @@ on a new line! ""Wow!"", the masses cried";
return -1; return -1;
} }
// Methods can have the same name, as long as the signature is unique
// A method that differs only in return type is not unique
public static void MethodSignatures(
ref int maxCount, // Pass by reference
out int count)
{
count = 15; // out param must be assigned before control leaves the method
}
// Methods can have the same name, as long as the signature is unique // Methods can have the same name, as long as the signature is unique
public static void MethodSignatures(string maxCount) public static void MethodSignatures(string maxCount)
{ {
@@ -414,6 +423,10 @@ on a new line! ""Wow!"", the masses cried";
MethodSignatures(3, 1, 3, "Some", "Extra", "Strings"); MethodSignatures(3, 1, 3, "Some", "Extra", "Strings");
MethodSignatures(3, another: 3); // explicity set a parameter, skipping optional ones MethodSignatures(3, another: 3); // explicity set a parameter, skipping optional ones
// BY REF AND OUT PARAMETERS
int maxCount = 0, count; // ref params must have value
MethodSignatures(ref maxCount, out count);
// EXTENSION METHODS // EXTENSION METHODS
int i = 3; int i = 3;
i.Print(); // Defined below i.Print(); // Defined below