# Function core::intrinsics::write_bytes 1.0.0 [−] [src]

    pub unsafe extern "rust-intrinsic" fn write_bytes<T>(dst: *mut T,
                                                         val: u8,
                                                         count: usize)

Invokes memset on the specified pointer, setting `count * size_of::<T>()` bytes of memory starting at `dst` to `val`.

# Examples

    use std::ptr;

    let mut vec = vec![0; 4];
    unsafe {
        let vec_ptr = vec.as_mut_ptr();
        ptr::write_bytes(vec_ptr, b'a', 2);
    }
    assert_eq!(vec, [b'a', b'a', 0, 0]);Run

# Help

## Keyboard Shortcuts

?
  Show this help dialog
S
  Focus the search field
⇤
  Move up in search results
⇥
  Move down in search results
⏎
  Go to active search result
+
  Collapse/expand 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`)