Created
October 25, 2024 13:47
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Compile issue on x64 msvc 17 VS 2022 (19.41)
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#include <iostream> | |
#include <cstdint> | |
#include <functional> | |
#include <string> | |
#include <optional> | |
//using F = std::function<int(int,int)>; | |
template <typename RType, typename DummyType = int64_t, | |
typename PType = int32_t, | |
typename FFunction = std::function<RType(PType, PType)>> | |
class Foo { | |
public: | |
Foo(PType p, FFunction f): p_(p), f_(std::move(f)) {} | |
RType func() const { | |
return f_(p_, p_); | |
} | |
PType p_; | |
const FFunction f_; | |
}; | |
template<bool x> void bar() { | |
int c = 12; | |
auto lambda = [&c](int a, int b) -> int { return a*b+c;}; | |
using L = decltype(lambda); | |
//using L = std:function<int(int,int)>; | |
std::cout << "blabla\n"; | |
for(auto it: {1,2,3}) { | |
Foo<int, int, int, L> foo(42, lambda); | |
const auto a = foo.func(); | |
std::cout << std::to_string(a) << '\n'; | |
} | |
} | |
struct B { int x = -1; }; | |
struct A { | |
std::optional<B> b; | |
}; | |
int main() { | |
bar<true>(); | |
A a = { | |
.b = B{.x = 3} | |
}; | |
} |
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Run on godbolt.org using
/std:c++20 /O2