pub unsafe fn realloc(ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8
Expand description
Reallocates memory with the global allocator.
This function forwards calls to the GlobalAlloc::realloc
method
of the allocator registered with the #[global_allocator]
attribute
if there is one, or the std
crate’s default.
This function is expected to be deprecated in favor of the grow
and shrink
methods
of the Global
type when it and the Allocator
trait become stable.
§Safety
See GlobalAlloc::realloc
.