1static bool eigen_did_assert = false; 2#define eigen_assert(X) if(!eigen_did_assert && !(X)){ std::cout << "### Assertion raised in " << __FILE__ << ":" << __LINE__ << ":\n" #X << "\n### The following would happen without assertions:\n"; eigen_did_assert = true;} 3 4#include <iostream> 5#include <Eigen/Eigen> 6 7#ifndef M_PI 8#define M_PI 3.1415926535897932384626433832795 9#endif 10 11 12using namespace Eigen; 13using namespace std; 14 15int main(int, char**) 16{ 17 cout.precision(3); 18 ${snippet_source_code} 19 return 0; 20} 21