Function scratchstack_wrapper_aws_c_cal::aws_set_sha256_new_fn

pub unsafe extern "C" fn aws_set_sha256_new_fn(fn_: aws_hash_new_fn)

Set the implementation of sha256 to use. If you compiled without BYO_CRYPTO, you do not need to call this. However, if use this, we will honor it, regardless of compile options. This may be useful for testing purposes. If you did set BYO_CRYPTO, and you do not call this function you will segfault.