255     bool b{ false };  variable
256     auto setB = [&b]() { b = true; };  in __anon8532fc100802()
257     auto setBAndCancel = [&b]() {  in __anon8532fc100902()
258         b = true;  in __anon8532fc100902()
264     REQUIRE(b);
266     b = false;
268     REQUIRE(b);
270     b = false;
272     REQUIRE(b);
274     b = false;
276     REQUIRE(!b);
278     b = false;
280     REQUIRE(!b);
390         std::uint64_t a, b;  in collaborative_recursive_fib()  local
392                              [&] { b = collaborative_recursive_fib(n - 1, buffer); });  in collaborative_recursive_fib()
393         buffer[n].second = a + b;  in collaborative_recursive_fib()