mirror of
https://github.com/triqs/dft_tools
synced 2024-12-27 06:43:40 +01:00
132 lines
3.4 KiB
Plaintext
132 lines
3.4 KiB
Plaintext
#include <triqs/parameters.hpp>
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#include <iostream>
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#include <vector>
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#include <complex>
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#include <string>
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#include <boost/mpi.hpp>
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#include <boost/mpi/environment.hpp>
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#include <boost/mpi/communicator.hpp>
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#include <boost/serialization/access.hpp>
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#include <boost/serialization/complex.hpp>
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#include <triqs/arrays.hpp>
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using namespace triqs::utility;
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namespace tqa=triqs::arrays;
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void somefunc(parameters P){//pass by value
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std::cout << P["a"] << std::endl;
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}
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//useful to change _object to param or parameter
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//and define the concept of a parameter
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//this way we can explicitly define functions of
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//parameters instead of native types
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void somefunc(param p){//pass a single parameter by value
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std::cout << p << std::endl;
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}
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int main(int argc, char* argv[]) {
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mpi::environment env(argc, argv);
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mpi::communicator world;
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parameters P;
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if (mpi.rank() == 0) {
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P ( "B", short(0), " short ")
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( "C", unsigned short(1), " unsigned short ")
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( "D", int(2), " int ")
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( "E", unsigned int(3), " unsigned int ")
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( "F", long(4), " long ")
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( "G", long long(5), " long ")
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( "H", float(6), " float ")
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( "I", double(7.8), " doube ")
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( "I", long double(9.10), " long double ")
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( "J", std::complex<float>(11), " single complex ")
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( "K", std::complex<double>(12), " double complex ")
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( "L", std::string("13"), " string ")
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( "M", std::vector<double> x{ 1,4 }, " vector ")
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( "N", double(15))
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( "W", int(16))
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;
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P.set_default("U", std::string("U"))
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("V", std::string("V"));
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P.set_default("W", std::string("W")); //warning: parameter has been set and will shadow default value
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P.set_default("X", std::string("X"));
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P.set_default("Y", std::string("Y"));
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P.set_default("Z", std::string("Z"), " Z ");
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std::cout << P["U"] << std::endl;
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if(!P.is_default("X") throw TRIQS_RUNTIME_ERROR << "parameter " << P["X"] << " not a default parameter" << std::endl;
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P["Y"] = 0.815; //must remove default status
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if(P.is_default("Y")) throw TRIQS_RUNTIME_ERROR << "parameter " << P["X"] << " is still a default parameter" << std::endl;
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}//rank=0
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mpi::broadcast(world,P,0);
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if (world.rank() == 0)
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std::cout << "rank 0" << std::endl << P << std::endl ;
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if (world.rank() == 1)
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std::cout << "rank 1" << std::endl << P << std::endl ;
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if (world.rank() == 0) {
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somefunc(P); //check that copying works (pass by value)
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param p(4.0); //declare a single parameter
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somefunc(p); //check that copying works (pass by value)
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param p2=P["A"]; //creation of a param from the type in P["A"]
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P["T"] = p2; //this should not register the type as param but as the type of P["A"]
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if(type_hash_code(P["T"]) != type_hash_code(P["A"])) throw TRIQS_RUNTIME_ERROR << "types don't match" << std::endl;
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param p3 = p2; //no call of any cast operator
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if(p2==p3) std::cout << "ok." << std::endl;
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if(p2!=p3) throw TRIQS_RUNTIME_ERROR << "param value mismatch" << std::endl;
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parameters P2(P);
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parameters P3; //new parameter list
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P3=P; //deep copy
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if(P2==P) std::cout << "ok." << std::endl;
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if(P2!=P) TRIQS_RUNTIME_ERROR << "parameter lists are not equal" << std::endl;
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if(P3!=P) TRIQS_RUNTIME_ERROR << "parameter lists are not equal" << std::endl;
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P2["ABC"]=5.0;
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if(P2==P) TRIQS_RUNTIME_ERROR << "parameter lists shouldn't be equal" << std::endl;
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tqa::array<double,2> A(2,2);
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P2["ArrayA"] = A;
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P2["ArrayB"] = tqa::array<double,2> B(3,3);
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P2["ArrayC"] = P2["ArrayA"] + P2["ArrayB"];
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} // rank==0
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return 0;
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}
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