Rust Result Pattern Matching. The methods on the Pattern type provide functionality for checking if individual paths match a particular pattern similar to the libc fnmatch function. Result i32 i32 Err 10.
Result i32 i32 Ok 10. Pub fn or self res. In this post we will look at some recent improvements to patterns soon available in stable Rust as well as some more already available in nightly.
Result - Result src Returns res if the result is Err otherwise returns the Ok value of self.
Is years old name age. Is years old name age. If you are new to Rust or want to refresh your knowledge you may first want to read chapters 6 Enums and Pattern Matching and 18 Patterns and Matching in the book or read more about match expressions and patterns in the reference. Pattern matching in Rust works by checking if a place in memory the data matches a certain pattern.