dammit operatorとは 意味・読み方・使い方

名詞

dammit operator (plural dammit operators)

1. (programming, slang) The operator ! in the C# programming language, used to indicate to the compiler that a possibly null reference will not be null at that point.
   • 2019, Ian Griffiths, Programming C# 8.0: Build Cloud, Web, and Desktop Applications (page 119)

     If you have a reference that the compiler presumes could be null […] but which you have good reason to believe will never be null, you can tell the compiler this by using the null forgiving operator […] It is sometimes known informally as the dammit operator, because being an exclamation mark makes it look like a slightly exasperated kind of assertion.

   • 2019, Paul Michaels, ‎Dirk Strauss, ‎Jas Rademeyer, C# 8 and .NET Core 3 Projects Using Azure (page 63)

     However, C# 8 does have a feature (which I've heard referred to as the dammit operator) that allows you to insist that, despite what the compiler believes, you know the variable will not be null; […]

   • 2023, Steve Love, The C# Type System (page 66)

     When we've filtered out all the null elements from our collection, we apply the dammit operator to the argument for ToTitleCase, as shown in Listing 2-34.