Compiling & building CPP using LLVM (Clang) on Windows10 - c++

Question

I installed LLVM on a clear Windows 10 machine, without anything else. I installed the ARMCompiler6.14.1. I have a simple cpp for testing:
#include <stdio.h>
#include <iostream>
#include <vector>
int main(void) {
int counter = 0;
counter++;
printf("counter: %d", counter);
std::cout << std::endl;
printf("c++14 output");
std::cout << std::endl;
std::vector<int> vect{1, 2, 3, 4, 5};
for (auto & el : vect)
std::cout << "-" << el << std::endl;
return counter;
}
When I compile this with following line I get errors:
"C:\Program Files\LLVM\bin\clang++.exe" -MD -x c++ "C:\Test\test.cpp" -target armv7a-none-eabi "-IC:\Program Files\ARMCompiler.6.14.1\include"
The error is:
test.cpp 2:10:fatal error: 'iostream' file not found
When I compile this with following line I get an windows executable which runs:
"C:\Program Files\LLVM\bin\clang++.exe" -MD -x c++ "C:\Test\test.cpp"
Since I checked that in the LLVM\bin is anything from the developer.arm.com package (ARMcompiler 6.14.1), I think that I should get an a.out for ARM, but I do not. When I checked the generated object file with:
"C:\Program Files\LLVM\bin\llvm-objdump.exe" -f test.o
I get following:
test.o file format elf32-littlearm
arhitecture: arm
start adress: 0x00000000
which means the object file is correctly generated for ARM, but I did not get an executable a.out for ARM.
What am I missing? How should I compile a simple test program to get it cross-compiled for ARM? Should I get the binutil from GCC for the Clang to create ARM executables?