Function scratchstack_wrapper_aws_c_common::aws_add_size_checked_varargs

pub unsafe extern "C" fn aws_add_size_checked_varargs(
    num: usize,
    r: *mut usize,
     ...
) -> c_int

Adds [num] arguments (expected to be of size_t), and returns the result in *r. If the result overflows, returns AWS_OP_ERR; otherwise returns AWS_OP_SUCCESS.