pub unsafe extern "C" fn sk_BIO_delete_if(
sk: *mut stack_st_BIO,
func: sk_BIO_delete_if_func,
data: *mut c_void,
)pub unsafe extern "C" fn sk_BIO_delete_if(
sk: *mut stack_st_BIO,
func: sk_BIO_delete_if_func,
data: *mut c_void,
)