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< p class = 'location' > Trait Zero< / p > < div class = "block items" > < ul > < li > < a href = "#required-methods" > Required Methods< / a > < / li > < li > < a href = "#implementors" > Implementors< / a > < / li > < / ul > < / div > < p class = 'location' > < a href = 'index.html' > num< / a > < / p > < script > window . sidebarCurrent = { name : 'Zero' , ty : 'trait' , relpath : '' } ; < / script > < script defer src = "sidebar-items.js" > < / script >
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< h1 class = 'fqn' > < span class = 'in-band' > Trait < a href = 'index.html' > num< / a > ::< wbr > < a class = "trait" href = '' > Zero< / a > < / span > < span class = 'out-of-band' > < span id = 'render-detail' >
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< pre class = 'rust trait' > pub trait Zero: < a class = "trait" href = "https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html" title = "trait core::ops::arith::Add" > Add< / a > < Self, Output = Self> {
fn < a href = '#tymethod.zero' class = 'fnname' > zero< / a > () -> Self;
fn < a href = '#tymethod.is_zero' class = 'fnname' > is_zero< / a > (& self) -> < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.bool.html" > bool< / a > ;
}< / pre > < div class = 'docblock' > < p > Defines an additive identity element for < code > Self< / code > .< / p >
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< h2 id = 'required-methods' > Required Methods< / h2 >
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< h3 id = 'tymethod.zero' class = 'method' > < span id = 'zero.v' class = 'invisible' > < code > fn < a href = '#tymethod.zero' class = 'fnname' > zero< / a > () -> Self< / code > < / span > < / h3 > < div class = 'docblock' > < p > Returns the additive identity element of < code > Self< / code > , < code > 0< / code > .< / p >
< h1 id = 'laws' class = 'section-header' > < a href = '#laws' > Laws< / a > < / h1 >
< pre > < code class = "language-{.text}" > a + 0 = a ∀ a ∈ Self
0 + a = a ∀ a ∈ Self
< / code > < / pre >
< h1 id = 'purity' class = 'section-header' > < a href = '#purity' > Purity< / a > < / h1 >
< p > This function should return the same result at all times regardless of
external mutable state, for example values stored in TLS or in
< code > static mut< / code > s.< / p >
< / div > < h3 id = 'tymethod.is_zero' class = 'method' > < span id = 'is_zero.v' class = 'invisible' > < code > fn < a href = '#tymethod.is_zero' class = 'fnname' > is_zero< / a > (& self) -> < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.bool.html" > bool< / a > < / code > < / span > < / h3 > < div class = 'docblock' > < p > Returns < code > true< / code > if < code > self< / code > is equal to the additive identity.< / p >
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< h2 id = 'implementors' > Implementors< / h2 >
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< li > < code > impl Zero for < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.f32.html" > f32< / a > < / code > < / li >
< li > < code > impl< T> Zero for < a class = "struct" href = "https://doc.rust-lang.org/nightly/core/num/struct.Wrapping.html" title = "struct core::num::Wrapping" > Wrapping< / a > < T> < span class = "where fmt-newline" > where< br > T: < a class = "trait" href = "../num/trait.Zero.html" title = "trait num::Zero" > Zero< / a > ,< br > < a class = "struct" href = "https://doc.rust-lang.org/nightly/core/num/struct.Wrapping.html" title = "struct core::num::Wrapping" > Wrapping< / a > < T> : < a class = "trait" href = "https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html" title = "trait core::ops::arith::Add" > Add< / a > < < a class = "struct" href = "https://doc.rust-lang.org/nightly/core/num/struct.Wrapping.html" title = "struct core::num::Wrapping" > Wrapping< / a > < T> > ,< br > < < a class = "struct" href = "https://doc.rust-lang.org/nightly/core/num/struct.Wrapping.html" title = "struct core::num::Wrapping" > Wrapping< / a > < T> as < a class = "trait" href = "https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html" title = "trait core::ops::arith::Add" > Add< / a > < < a class = "struct" href = "https://doc.rust-lang.org/nightly/core/num/struct.Wrapping.html" title = "struct core::num::Wrapping" > Wrapping< / a > < T> > > ::< a class = "type" href = "https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#associatedtype.Output" title = "type core::ops::arith::Add::Output" > Output< / a > == < a class = "struct" href = "https://doc.rust-lang.org/nightly/core/num/struct.Wrapping.html" title = "struct core::num::Wrapping" > Wrapping< / a > < T> , < / span > < / code > < / li >
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< li > < code > impl Zero for < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.u8.html" > u8< / a > < / code > < / li >
< li > < code > impl Zero for < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.i64.html" > i64< / a > < / code > < / li >
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< li > < code > impl Zero for < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.u16.html" > u16< / a > < / code > < / li >
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< li > < code > impl Zero for < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.i16.html" > i16< / a > < / code > < / li >
< li > < code > impl Zero for < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.f64.html" > f64< / a > < / code > < / li >
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< li > < code > impl Zero for < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.u64.html" > u64< / a > < / code > < / li >
< li > < code > impl Zero for < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.u32.html" > u32< / a > < / code > < / li >
< li > < code > impl Zero for < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.i8.html" > i8< / a > < / code > < / li >
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< li > < code > impl Zero for < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.i32.html" > i32< / a > < / code > < / li >
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< li > < code > impl Zero for < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.isize.html" > isize< / a > < / code > < / li >
< li > < code > impl Zero for < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.usize.html" > usize< / a > < / code > < / li >
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