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| author | Brad King <brad.king@kitware.com> | 2019-08-22 08:28:08 -0400 |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2019-08-23 08:43:35 -0400 |
| commit | 170fcd715f586cfd6b9f741c0572d472e0abe8ed (patch) | |
| tree | cb76e69494bb4f043eddf8c4e2267a073286451a /Source/Checks | |
| parent | 43fe736b2bf272647fb24b481bdc9a585c0666ac (diff) | |
| download | cmake-170fcd715f586cfd6b9f741c0572d472e0abe8ed.tar.gz | |
Extend C++17 feature checks to require std::optional
Diffstat (limited to 'Source/Checks')
| -rw-r--r-- | Source/Checks/cm_cxx17_check.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Source/Checks/cm_cxx17_check.cpp b/Source/Checks/cm_cxx17_check.cpp index 593d9b263d..29863b136b 100644 --- a/Source/Checks/cm_cxx17_check.cpp +++ b/Source/Checks/cm_cxx17_check.cpp @@ -1,6 +1,7 @@ #include <cstdio> #include <iterator> #include <memory> +#include <optional> #include <unordered_map> #ifdef _MSC_VER @@ -27,5 +28,7 @@ int main() IDispatchPtr disp(ptr); #endif - return *u + *ai + *(bi - 1) + (3 - static_cast<int>(ci)); + std::optional<int> oi = 0; + + return *u + *ai + *(bi - 1) + (3 - static_cast<int>(ci)) + oi.value(); } |