# Function std::mem::transmute_copy [−] [src]

    pub unsafe fn transmute_copy<T, U>(src: &T) -> U

Interprets `src` as `&U`, and then reads `src` without moving the contained value.

This function will unsafely assume the pointer `src` is valid for `sizeof(U)` bytes by transmuting `&T` to `&U` and then reading the `&U`. It will also unsafely create a copy of the contained value instead of moving out of `src`.

It is not a compile-time error if `T` and `U` have different sizes, but it is highly encouraged to only invoke this function where `T` and `U` have the same size. This function triggers undefined behavior if `U` is larger than `T`.

# Examples

fn main() { use std::mem; let one = unsafe { mem::transmute_copy(&1) }; assert_eq!(1, one); }

    use std::mem;

    let one = unsafe { mem::transmute_copy(&1) };

    assert_eq!(1, one);

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