RE: Any idea why build failed on cpp?

[Mark Slee]

It looks like you are using the set<> container on one of your types, which 
requires that you implement a comparator, since Thrift doesn't know how to 
provide one for you.

Since you are using sets, you must provide an implementation of this function 
in your source code:
tc_petclinic::Pet::operator<(tc_petclinic::Pet const&) const

-----Original Message-----
From: EY Tsai [mailto:ey.t...@comcast.net] 
Sent: Monday, August 16, 2010 5:22 PM
To: thrift-user@incubator.apache.org
Subject: Any idea why build failed on cpp?


g++ -o CppClinicClient -I./gen-cpp -I/usr/local/include/thrift 
-I/usr/include/boost/  -I./ -L/usr/local/lib -lthrift main/CppClinicClient.cpp 
gen-cpp/petclinic_constants.cpp gen-cpp/petclinic_types.cpp  
gen-cpp/PetClinic.cpp
/tmp/ccSEmUDT.o: In function 
`std::less<tc_petclinic::Specialty>::operator()(tc_petclinic::Specialty const&, 
tc_petclinic::Specialty const&) const':
petclinic_types.cpp:(.text._ZNKSt4lessIN12tc_petclinic9SpecialtyEEclERKS1_S4_[std::less<tc_petclinic::Specialty>::operator()(tc_petclinic::Specialty
 const&, tc_petclinic::Specialty const&) const]+0x14): undefined reference to 
`tc_petclinic::Specialty::operator<(tc_petclinic::Specialty const&) const'
/tmp/ccSEmUDT.o: In function 
`std::less<tc_petclinic::Visit>::operator()(tc_petclinic::Visit const&, 
tc_petclinic::Visit const&) const':
petclinic_types.cpp:(.text._ZNKSt4lessIN12tc_petclinic5VisitEEclERKS1_S4_[std::less<tc_petclinic::Visit>::operator()(tc_petclinic::Visit
 const&, tc_petclinic::Visit const&) const]+0x14): undefined reference to 
`tc_petclinic::Visit::operator<(tc_petclinic::Visit const&) const'
/tmp/ccSEmUDT.o: In function 
`std::less<tc_petclinic::Pet>::operator()(tc_petclinic::Pet const&, 
tc_petclinic::Pet const&) const':
petclinic_types.cpp:(.text._ZNKSt4lessIN12tc_petclinic3PetEEclERKS1_S4_[std::less<tc_petclinic::Pet>::operator()(tc_petclinic::Pet
 const&, tc_petclinic::Pet const&) const]+0x14): undefined reference to 
`tc_petclinic::Pet::operator<(tc_petclinic::Pet const&) const'
collect2: ld returned 1 exit status
make: *** [client] Error 1

petclinic.thrif:

struct PetType {
   1: i32 id,
   2: string name
}

struct Specialty {
   1: i32 id,
   2: string name
}

struct Vet {
   1: i32 id,
   2: string firstName,
   3: string lastName,
   4: set<Specialty>  specialties
}

struct Visit {
   1: i32 id,
   2: i64 date,
   3: string description,
   4: i32 petFK
}

struct Pet {
   1: i32 id,
   2: string name
   3: string birthDate,
   4: PetType type,
   5: set<Visit>  visits,
   6: i32 ownerFK,
   7: i32 typeFK
}

struct Owner {
   1: i32 id,
   2: string firstName,
   3: string lastName
   4: i32 account,
   5: string address,
   6: string city,
   7: string telephone,
   8: set<Pet>  pets
}

service PetClinic {
   void putPetType(1: PetType petType),
   PetType getPetType(1: i32 id),
   void putPet(1: Pet pet),
   Pet getPet(1: i32 id),
   void putVisit(1: Visit visit),
   Visit getVisit(1: i32 id),
   void putOwnerPets(1: i32 ownerId, 2: set<Pet>  pets),
   set<Pet>  getOwnerPets(1: i32 ownerId),
   void putPetVisits(1: i32 petId, 2: set<Visit>  visits),
   set<Visit>  getPetVisits(1: i32 petId),
   void putOwner(1: Owner owner),
   Owner getOwner(1: i32 id)
}

Thanks