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Niels Lohmann
c5d40f05fe
ci_icpc and ci_nvhpc failed to compile unit-ordered_map.cpp: the static assertion that std::pair<const std::string, ordered_json> is not nothrow move-constructible fails there. The EDG front end (Intel icpc 2021.10, NVIDIA nvc++ 25.5) considers the defaulted move constructor of std::pair<const Key, T> noexcept even if copying Key can throw. With these compilers, std::vector already moves such elements itself when it grows, and ordered_map correctly leaves growing to it. The same misjudgement makes std::vector call std::terminate when a key copy throws during growth, so the exception-safety test with throwing_key would abort on these compilers as well. Skip the static assertion and the exception-safety section when __EDG__ is defined. Verified with icpc 2021.10 (-std=gnu++11) and nvc++ 25.5 (C++11 and C++17) on Compiler Explorer: unit-ordered_map and unit-disabled_exceptions build and pass. Signed-off-by: Niels Lohmann <mail@nlohmann.me>