I have a very simple example
#include
int main()
{
std::cout << "Hello World!" << std::endl;
return 0;
}
If I compile this with Visual Studio Compiler on Visual Studio Community 2019, then it works as expected.
However, when I change the compiler to Intel C++, installed with Intel Parallel Studio 2020(19.1), it returns an error
1>------ Build started: Project: Project1, Configuration: Debug x64 ------
1>Source.cpp
1>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\include\utility(92): error : expected an identifier
1> !_Is_implicitly_default_constructible<_Uty1>::value || !_Is_implicitly_default_constructible<_Uty2>::value)
1> ^
1>
1>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\include\utility(91): error : not a valid member class or function template declaration
1> constexpr explicit(
1> ^
1>
1>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\include\utility(91): error : "explicit" is not allowed
1> constexpr explicit(
1> ^
1>
1>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\include\utility(93): error : expected a ";"
1> pair() noexcept(
1> ^
1>
1>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\include\utility(175): error : expected an identifier
1> constexpr explicit(!is_convertible<const _Other1&, _Ty1>::value // TRANSITION, VSO#946746
1> ^
1>
1>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\include\utility(175): error : not a valid member class or function template declaration
1> constexpr explicit(!is_convertible<const _Other1&, _Ty1>::value // TRANSITION, VSO#946746
1> ^
1>
1>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\include\utility(175): error : "explicit" is not allowed
1> constexpr explicit(!is_convertible<const _Other1&, _Ty1>::value // TRANSITION, VSO#946746
1> ^
1>
1>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\include\utility(177): error : expected a ";"
1> pair(const pair<_Other1, _Other2>& _Right) noexcept(is_nothrow_constructible_v<_Ty1, const _Other1&>&&
1> ^
1>
1>compilation aborted for Source.cpp (code 2)
1>Done building project "Project1.vcxproj" -- FAILED.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
If I comment out the #include and std::cout ~~, which is basically an empty program, then it compiles successfully and runs without error.
My system is
OS: 64bit Windows 10 Enterprise