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bootstrap: Extend C++17 check for our cast functions

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In commit fc3b4caa2e (Memory management: cast functions for managed pointers,
2019-11-18) we added a check to `Source/Checks/cm_cxx17_check.cpp` to avoid
using C++17 mode on a compiler that does not support all our C++17 usage.
Add the check to our bootstrap script too.
This commit is contained in:
Brad King 2019-12-14 13:28:22 -05:00
parent 2d53894c31
commit 033a4b12a5
1 changed files with 11 additions and 1 deletions
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12
bootstrap
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@ -1168,10 +1168,20 @@ int check_cxx14()
}
#endif
#if __cplusplus >= 201703L
#if (__cplusplus >= 201703L || defined(__INTEL_COMPILER) && defined(__cpp_if_constexpr))
#include <optional>
template <typename T,
typename std::invoke_result<decltype(&T::get), T>::type = nullptr>
typename T::pointer get_ptr(T& item)
{
return item.get();
}
int check_cxx17()
{
// Intel compiler do not handle correctly 'decltype' inside 'invoke_result'
std::unique_ptr<int> u(new int(0));
get_ptr(u);
std::optional<int> oi = 0;
return oi.value();
}