Currying: Difference between revisions
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(→{{header|Kotlin}}: Updated example see https://github.com/dkandalov/rosettacode-kotlin for details) |
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This is a simple currying function written in [[Rust]]: |
This is a simple currying function written in [[Rust]]: |
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<lang rust>#![feature( |
<lang rust>#![feature(conservative_impl_trait)] |
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fn add_n(n : i32) -> |
fn add_n<'a>(n : i32) -> impl Fn(i32) -> i32 + 'a { |
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move |x| n + x |
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} |
} |
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println!("The answer to life is {}.", adder(2)); |
println!("The answer to life is {}.", adder(2)); |
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}</lang> |
}</lang> |
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Note that once "unboxed, abstract return types" are supported it can be done without the heap allocation/trait object indirection. |
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=={{header|Scala}}== |
=={{header|Scala}}== |
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