Function va_copy

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

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

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.