Using the type qualifier const makes the code easier to understand
avoiding misunderstandings during programming and allows the user
who uses the mimalloc ABI to immediately identify those functions
that change the variables passed to the functions.
Signed-off-by: Ernesto Castellotti <erny.castell@gmail.com>
GCC does want to complain about parameter-less functions declared
without the recommended `void` as parameter list.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
