kirkshoop

#!/bin/bash
set -e

# Building LLVM on OSX CMake setup script
#
# Required:
#   - clang by Xcode6 or later
#   - cmake
#   - ninja
#

kirkshoop

auto pi = [](int k) {
  return ( k % 2 == 0 ? -4 : 4 ) / ( long double )( ( 2 * k ) - 1 );
};

auto total = rxcpp::observable<>::range(1, 10000000)
  .map(pi)
  .sum()
  .as_blocking().last();

std::cout << "Pi: " << total << std::endl;