"Expected initializer before '<' token" in header file
- by Sarah
I'm pretty new to programming and am generally confused by header files and includes. I would like help with an immediate compile problem and would appreciate general suggestions about cleaner, safer, slicker ways to write my code.
I'm currently repackaging a lot of code that used to be in main() into a Simulation class. I'm getting a compile error with the header file for this class. I'm compiling with gcc version 4.2.1.
// Simulation.h
#ifndef SIMULATION_H
#define SIMULATION_H
#include <cstdlib>
#include <iostream>
#include <cmath>
#include <string>
#include <fstream>
#include <set>
#include <boost/multi_index_container.hpp>
#include <boost/multi_index/hashed_index.hpp>
#include <boost/multi_index/member.hpp>
#include <boost/multi_index/ordered_index.hpp>
#include <boost/multi_index/mem_fun.hpp>
#include <boost/multi_index/composite_key.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/tuple/tuple_comparison.hpp>
#include <boost/tuple/tuple_io.hpp>
#include "Parameters.h"
#include "Host.h"
#include "rng.h"
#include "Event.h"
#include "Rdraws.h"
typedef multi_index_container< // line 33 - first error
boost::shared_ptr< Host >,
indexed_by<
hashed_unique< const_mem_fun<Host,int,&Host::getID> >, // 0 - ID index
ordered_non_unique< tag<age>,const_mem_fun<Host,int,&Host::getAgeInY> >, // 1 - Age index
hashed_non_unique< tag<household>,const_mem_fun<Host,int,&Host::getHousehold> >, // 2 - Household index
ordered_non_unique< // 3 - Eligible by age & household
tag<aeh>,
composite_key<
Host,
const_mem_fun<Host,int,&Host::getAgeInY>,
const_mem_fun<Host,bool,&Host::isEligible>,
const_mem_fun<Host,int,&Host::getHousehold>
>
>,
ordered_non_unique< // 4 - Eligible by household (all single adults)
tag<eh>,
composite_key<
Host,
const_mem_fun<Host,bool,&Host::isEligible>,
const_mem_fun<Host,int,&Host::getHousehold>
>
>,
ordered_non_unique< // 5 - Household & age
tag<ah>,
composite_key<
Host,
const_mem_fun<Host,int,&Host::getHousehold>,
const_mem_fun<Host,int,&Host::getAgeInY>
>
>
> // end indexed_by
> HostContainer;
typedef std::set<int> HHSet;
class Simulation
{
public:
Simulation( int sid );
~Simulation();
// MEMBER FUNCTION PROTOTYPES
void runDemSim( void );
void runEpidSim( void );
void ageHost( int id );
int calcPartnerAge( int a );
void executeEvent( Event & te );
void killHost( int id );
void pairHost( int id );
void partner2Hosts( int id1, int id2 );
void fledgeHost( int id );
void birthHost( int id );
void calcSI( void );
double beta_ij_h( int ai, int aj, int s );
double beta_ij_nh( int ai, int aj, int s );
private:
// SIMULATION OBJECTS
double t;
double outputStrobe;
int idCtr;
int hholdCtr;
int simID;
RNG rgen;
HostContainer allHosts; // shared_ptr to Hosts - line 102 - second error
HHSet allHouseholds;
int numInfecteds[ INIT_NUM_AGE_CATS ][ INIT_NUM_STYPES ];
EventPQ currentEvents;
// STREAM MANAGEMENT
void writeOutput();
void initOutput();
void closeOutput();
std::ofstream ageDistStream;
std::ofstream ageDistTStream;
std::ofstream hhDistStream;
std::ofstream hhDistTStream;
std::string ageDistFile;
std::string ageDistTFile;
std::string hhDistFile;
std::string hhDistTFile;
};
#endif
I'm hoping the other files aren't so relevant to this problem. When I compile with
g++ -g -o -c a.out -I /Applications/boost_1_42_0/ Host.cpp Simulation.cpp rng.cpp main.cpp Rdraws.cpp
I get
Simulation.h:33: error: expected initializer before '<' token
Simulation.h:102: error: 'HostContainer' does not name a type
and then a bunch of other errors related to not recognizing the HostContainer.
It seems like I have all the right Boost #includes for the HostContainer to be understood. What else could be going wrong?
I would appreciate immediate suggestions, troubleshooting tips, and other advice about my code. My plan is to create a "HostContainer.h" file that includes the typedef and structs that define its tags, similar to what I'm doing in "Event.h" for the EventPQ container. I'm assuming this is legal and good form.
