Fix always creating profile.csv

Author: WardBrian

makefile

@@ -283,8 +283,8 @@ clean: clean-tests
 	$(RM) bin/stanc$(EXE) bin/stansummary$(EXE) bin/print$(EXE) bin/diagnose$(EXE)
 	$(RM) -r bin/cmdstan
 	@echo '  removing cached compiler objects'
-	$(RM) $(wildcard src/cmdstan/main*.o) $(wildcard $(STAN)src/stan/model/model_header*.hpp.gch)
-	$(RM) -r $(STAN)src/stan/model/model_header.hpp.gch/
+	$(RM) $(wildcard src/cmdstan/main*.o)
+	$(RM) -r $(wildcard $(STAN)src/stan/model/model_header*.hpp.gch)
 	@echo '  removing built example model'
 	$(RM) examples/bernoulli/bernoulli$(EXE) examples/bernoulli/bernoulli.o examples/bernoulli/bernoulli.d examples/bernoulli/bernoulli.hpp $(wildcard examples/bernoulli/*.csv)
 

src/cmdstan/command.hpp

@@ -786,7 +786,7 @@ int command(int argc, const char *argv[]) {
           }
         }
       }  // end static HMC
-    }    // ---- sample end ---- //
+    }  // ---- sample end ---- //
   } else if (user_method->arg("variational")) {
     // ---- variational start ---- //
     list_argument *algo = dynamic_cast<list_argument *>(
@@ -831,7 +831,7 @@ int command(int argc, const char *argv[]) {
   //////////////////////////////////////////////////
 
   stan::math::profile_map &profile_data = get_stan_profile_data();
-  if (profile_data.size() > 0) {
+  if (profile_data.begin() != profile_data.end()) {
     std::string profile_file_name
         = get_arg_val<string_argument>(parser, "output", "profile_file");
     std::fstream profile_stream(profile_file_name.c_str(), std::fstream::out);