https://unicode-org.github.io/icu-docs/apidoc/released/icu4c/structU__HEADER__ONLY__NAMESPACE_1_1prv_1_1range__type_3_01Range_00_01std_1_1void__t_3_01decltypf5078535dbcf2fa34be202d612eb2ece.html
ICU 78.3: U_HEADER_ONLY_NAMESPACE::prv::range_type Range, std::void_t decltype(std::declval...
https://learn.microsoft.com/en-us/cpp/cpp/decltype-cpp?view=msvc-170&viewFallbackFrom=vs-2019
decltype (C++) | Microsoft Learn
Learn more about: decltype (C++)
clearn
https://community.ibm.com/community/user/blogs/fang-lu2/2020/03/24/c11-the-decltype-specifier?hlmlt=VT
C++11: The decltype specifier
Usage and advantage of the decltype specifier As C++ templates and generic programming become popular, programmers find it sometimes difficult to express
c
https://unicode-org.github.io/icu-docs/apidoc/dev/icu4c/structU__HEADER__ONLY__NAMESPACE_1_1prv_1_1range__type_3_01Range_00_01std_1_1void__t_3_01decltypf5078535dbcf2fa34be202d612eb2ece.html
ICU 78.1: U_HEADER_ONLY_NAMESPACE::prv::range_type Range, std::void_t decltype(std::declval...