@deftypefun {void} {gnutls_global_set_mem_functions} (gnutls_alloc_function @var{alloc_func}, gnutls_alloc_function @var{secure_alloc_func}, gnutls_is_secure_function @var{is_secure_func}, gnutls_realloc_function @var{realloc_func}, gnutls_free_function @var{free_func})
@var{alloc_func}: it's the default memory allocation function. Like @code{malloc()} .

@var{secure_alloc_func}: This is the memory allocation function that will be used for sensitive data.

@var{is_secure_func}: a function that returns 0 if the memory given is not secure. May be NULL.

@var{realloc_func}: A realloc function

@var{free_func}: The function that frees allocated data. Must accept a NULL pointer.


@strong{Deprecated:} since 3.3.0 it is no longer possible to replace the internally used 
memory allocation functions

This is the function where you set the memory allocation functions
gnutls is going to use. By default the libc's allocation functions
(@code{malloc()} , @code{free()} ), are used by gnutls, to allocate both sensitive
and not sensitive data.  This function is provided to set the
memory allocation functions to something other than the defaults

This function must be called before @code{gnutls_global_init()}  is called.
This function is not thread safe.
@end deftypefun