p_get_reason_strings
p_get_reason_strings = OSSL_FUNC_provider_get_reason_strings(provider_dispatch);
if (p_get_reason_strings != NULL) {
const OSSL_ITEM *reasonstrings = p_get_reason_strings(prov->provctx);
OSSL_FUNC_provider_get_reason_strings_fn *p_get_reason_strings = NULL;
(void (*)(void))p_get_reason_strings },
static OSSL_FUNC_provider_get_reason_strings_fn p_get_reason_strings;