std::ops::MulAssign - Rust
Description: API documentation for the Rust `MulAssign` trait in crate `std`.
Keywords: rust, rustlang, rust-lang, MulAssign

# Trait std::ops::MulAssign 1.8.0 [−] [src]

    #[lang = "mul_assign"]
    pub trait MulAssign<Rhs = Self> {
        fn mul_assign(&mut self, rhs: Rhs);
    }

The multiplication assignment operator `*=`.

# Examples

A trivial implementation of `MulAssign`. When `Foo *= Foo` happens, it ends up calling `mul_assign`, and therefore, `main` prints `Multiplying!`.

    use std::ops::MulAssign;

    struct Foo;

    impl MulAssign for Foo {
        fn mul_assign(&mut self, _rhs: Foo) {
            println!("Multiplying!");
        }
    }

    fn main() {
        let mut foo = Foo;
        foo *= Foo;
    }Run

## Required Methods

### `fn mul_assign(&mut self, rhs: Rhs)`

The method for the `*=` operator

## Implementors

- `impl MulAssign<Wrapping<u8>> for Wrapping<u8>`
- `impl MulAssign<Wrapping<u16>> for Wrapping<u16>`
- `impl MulAssign<f64> for f64`
- `impl MulAssign<u32> for u32`
- `impl MulAssign<Wrapping<i32>> for Wrapping<i32>`
- `impl MulAssign<isize> for isize`
- `impl MulAssign<Wrapping<u128>> for Wrapping<u128>`
- `impl MulAssign<usize> for usize`
- `impl MulAssign<u8> for u8`
- `impl MulAssign<u16> for u16`
- `impl MulAssign<f32> for f32`
- `impl MulAssign<u64> for u64`
- `impl MulAssign<Wrapping<i16>> for Wrapping<i16>`
- `impl MulAssign<Wrapping<isize>> for Wrapping<isize>`
- `impl MulAssign<Wrapping<u32>> for Wrapping<u32>`
- `impl MulAssign<Wrapping<u64>> for Wrapping<u64>`
- `impl MulAssign<i8> for i8`
- `impl MulAssign<i16> for i16`
- `impl MulAssign<i32> for i32`
- `impl MulAssign<Wrapping<i64>> for Wrapping<i64>`
- `impl MulAssign<Wrapping<usize>> for Wrapping<usize>`
- `impl MulAssign<i64> for i64`
- `impl MulAssign<Wrapping<i128>> for Wrapping<i128>`
- `impl MulAssign<Wrapping<i8>> for Wrapping<i8>`
- `impl MulAssign<u128> for u128`
- `impl MulAssign<i128> for i128`
- `impl MulAssign<u32> for Duration`

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