| 1 | // Copyright (c) 2018 Robert Ramey |
|---|---|
| 2 | // |
| 3 | // Distributed under the Boost Software License, Version 1.0. (See |
| 4 | // accompanying file LICENSE_1_0.txt or copy at |
| 5 | // http://www.boost.org/LICENSE_1_0.txt) |
| 6 | |
| 7 | #include <boost/safe_numerics/safe_integer.hpp> |
| 8 | #include <cstdint> // uint8_t |
| 9 | using namespace boost::safe_numerics; |
| 10 | |
| 11 | uint8_t f(uint8_t i){ |
| 12 | return i; |
| 13 | } |
| 14 | |
| 15 | using safe_t = safe<long, native, loose_trap_policy>; |
| 16 | |
| 17 | int main(){ |
| 18 | const long x = 97; |
| 19 | f(i: x); // OK - implicit conversion to int can never fail |
| 20 | const safe_t y = 97; |
| 21 | f(i: y); // could overflow so trap at compile time |
| 22 | return 0; |
| 23 | } |
| 24 |