diff options
| -rw-r--r-- | Source/Checks/cm_cxx_filesystem.cxx | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/Source/Checks/cm_cxx_filesystem.cxx b/Source/Checks/cm_cxx_filesystem.cxx index 732f28f..c8df589 100644 --- a/Source/Checks/cm_cxx_filesystem.cxx +++ b/Source/Checks/cm_cxx_filesystem.cxx @@ -1,5 +1,8 @@ #include <filesystem> +#if defined(__GLIBCXX__) +# include <string_view> +#endif int main() { @@ -34,5 +37,30 @@ int main() p5.remove_filename(); #endif +#if defined(__GLIBCXX__) + // RH gcc-toolset-10 has a strange bug: it selects, in some circumstances, + // the wrong constructor which generate error in template instantiation. + class my_string_view : std::string_view + { + public: + my_string_view(const char* p) + : std::string_view(p) + { + } + }; + class my_path + { + public: + my_path(std::filesystem::path path) {} + + my_path(my_string_view path) {} + }; + + my_path p{ my_string_view{ "abc" } }; + // here is the bug: the constructor taking std::filesystem::path as argument + // is selected, so the compiler try to build a std::filesystem::path instance + // from the my_string_view argument and fails to do so. +#endif + return 0; } |