Function ralloc::realloc

pub unsafe fn realloc(ptr: *mut u8,
                      old_size: usize,
                      size: usize,
                      align: usize)
                      -> *mut u8

Reallocate memory.

Reallocate the buffer starting at ptr with size old_size, to a buffer starting at the returned pointer with size size.

Important!

You should only reallocate buffers allocated through ralloc. Anything else is considered invalid.

Errors

The OOM handler handles out-of-memory conditions.

Safety

Due to being able to potentially memcpy an arbitrary buffer, as well as shrinking a buffer, this is marked unsafe.