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

    use std::ops::MulAssign;

    #[derive(Debug, PartialEq)]
    struct Frequency { hertz: f64 }

    impl MulAssign<f64> for Frequency {
        fn mul_assign(&mut self, rhs: f64) {
            self.hertz *= rhs;
        }
    }

    let mut frequency = Frequency { hertz: 50.0 };
    frequency *= 4.0;
    assert_eq!(Frequency { hertz: 200.0 }, frequency);Run

## Required Methods

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

Performs the `*=` operation.

## Implementors

- `impl MulAssign<u32> for Duration` | [src]

- `impl MulAssign<i64> for i64` | [src]

- `impl MulAssign<Wrapping<usize>> for Wrapping<usize>` | [src]

- `impl<'a> MulAssign<&'a Wrapping<u8>> for Wrapping<u8>` | [src]

- `impl<'a> MulAssign<&'a Wrapping<u16>> for Wrapping<u16>` | [src]

- `impl<'a> MulAssign<&'a usize> for usize` | [src]

- `impl<'a> MulAssign<&'a u16> for u16` | [src]

- `impl<'a> MulAssign<&'a Wrapping<u32>> for Wrapping<u32>` | [src]

- `impl MulAssign<u32> for u32` | [src]

- `impl MulAssign<Wrapping<i64>> for Wrapping<i64>` | [src]

- `impl<'a> MulAssign<&'a Wrapping<u128>> for Wrapping<u128>` | [src]

- `impl MulAssign<f64> for f64` | [src]

- `impl MulAssign<Wrapping<u128>> for Wrapping<u128>` | [src]

- `impl MulAssign<u16> for u16` | [src]

- `impl MulAssign<i32> for i32` | [src]

- `impl MulAssign<Wrapping<u8>> for Wrapping<u8>` | [src]

- `impl MulAssign<Wrapping<i8>> for Wrapping<i8>` | [src]

- `impl<'a> MulAssign<&'a Wrapping<isize>> for Wrapping<isize>` | [src]

- `impl MulAssign<Wrapping<isize>> for Wrapping<isize>` | [src]

- `impl<'a> MulAssign<&'a Wrapping<u64>> for Wrapping<u64>` | [src]

- `impl<'a> MulAssign<&'a i16> for i16` | [src]

- `impl MulAssign<i8> for i8` | [src]

- `impl MulAssign<i16> for i16` | [src]

- `impl<'a> MulAssign<&'a Wrapping<i8>> for Wrapping<i8>` | [src]

- `impl<'a> MulAssign<&'a u32> for u32` | [src]

- `impl MulAssign<Wrapping<i16>> for Wrapping<i16>` | [src]

- `impl<'a> MulAssign<&'a i64> for i64` | [src]

- `impl MulAssign<Wrapping<u16>> for Wrapping<u16>` | [src]

- `impl<'a> MulAssign<&'a Wrapping<i16>> for Wrapping<i16>` | [src]

- `impl MulAssign<u64> for u64` | [src]

- `impl<'a> MulAssign<&'a i8> for i8` | [src]

- `impl<'a> MulAssign<&'a u8> for u8` | [src]

- `impl<'a> MulAssign<&'a Wrapping<i64>> for Wrapping<i64>` | [src]

- `impl MulAssign<i128> for i128` | [src]

- `impl<'a> MulAssign<&'a f32> for f32` | [src]

- `impl<'a> MulAssign<&'a i128> for i128` | [src]

- `impl<'a> MulAssign<&'a Wrapping<usize>> for Wrapping<usize>` | [src]

- `impl MulAssign<Wrapping<i32>> for Wrapping<i32>` | [src]

- `impl MulAssign<u128> for u128` | [src]

- `impl<'a> MulAssign<&'a u64> for u64` | [src]

- `impl MulAssign<usize> for usize` | [src]

- `impl MulAssign<u8> for u8` | [src]

- `impl MulAssign<f32> for f32` | [src]

- `impl<'a> MulAssign<&'a u128> for u128` | [src]

- `impl<'a> MulAssign<&'a i32> for i32` | [src]

- `impl MulAssign<Wrapping<u32>> for Wrapping<u32>` | [src]

- `impl MulAssign<Wrapping<i128>> for Wrapping<i128>` | [src]

- `impl MulAssign<Wrapping<u64>> for Wrapping<u64>` | [src]

- `impl MulAssign<isize> for isize` | [src]

- `impl<'a> MulAssign<&'a Wrapping<i32>> for Wrapping<i32>` | [src]

- `impl<'a> MulAssign<&'a Wrapping<i128>> for Wrapping<i128>` | [src]

- `impl<'a> MulAssign<&'a isize> for isize` | [src]

- `impl<'a> MulAssign<&'a f64> for f64` | [src]

# Help

## Keyboard Shortcuts

`?`
  Show this help dialog
`S`
  Focus the search field
`↑`
  Move up in search results
`↓`
  Move down in search results
`↹`
  Switch tab
`⏎`
  Go to active search result
`+`
  Expand all sections
`-`
  Collapse all sections

## Search Tricks

Prefix searches with a type followed by a colon (e.g. `fn:`) to restrict the search to a given type.

Accepted types are: `fn`, `mod`, `struct`, `enum`, `trait`, `type`, `macro`, and `const`.

Search functions by type signature (e.g. `vec -> usize` or `* -> vec`)

Search multiple things at once by splitting your query with comma (e.g. `str,u8` or `String,struct:Vec,test`)