va_copy in std::intrinsics - Rust
Description: Copies the current location of arglist `src` to the arglist `dst`.

## va_copy

# Function va_copy

Source

    pub unsafe fn va_copy<'f>(dest: *mut VaList<'f>, src: &VaList<'f>)

🔬This is a nightly-only experimental API. (`core_intrinsics`)
Expand description

Copies the current location of arglist `src` to the arglist `dst`.

## §Safety

You must check the following invariants before you call this function:

- `dest` must be non-null and point to valid, writable memory.
- `dest` must not alias `src`.