va_arg

std::intrinsics

Function va_arg 

Source 
pub unsafe fn va_arg<T>(ap: &mut VaListImpl<'_>) -> T
where
    T: VaArgSafe,
🔬This is a nightly-only experimental API. (core_intrinsics)
Available on non-crate feature ferrocene_certified only.
Expand description

Loads an argument of type T from the va_list ap and increment the argument ap points to.

FIXME: document safety requirements