Having compilation error: no match for call to ‘(const __gnu_cxx::hash<long long int>) (const long

V

veryhotsausage

I'm really hoping that someone can give me some pointers. I've been
using sparsehash on windows with no problems, but when i tried to
compile the same code on linux, it threw a fit.

I've been using linux for about a week and eclipse for about 3 days so
please excuse my ignorance.

My code to use sparsehash compiles under eclipse (no red lines) but
I'm getting a bunch of really cryptic messages which basically says
this:

/usr/local/include/google/sparsehash/densehashtable.h:656: error: no
match for call to ‘(const __gnu_cxx::hash<long long int>) (const long
long int&)’

I think it's a compiler error but i have no idea how to solve it.

Thank you in advance

------------------------------------------------

The entire message is as follows:

/usr/local/include/google/sparsehash/densehashtable.h:521: error: no
match for call to ‘(__gnu_cxx::hash<long long int>) (const long long
int&)’
/usr/local/include/google/sparsehash/densehashtable.h: In member
function ‘std::pair<unsigned int, unsigned int>
google::dense_hashtable<Value, Key, HashFcn, ExtractKey, EqualKey,
Alloc>::find_position(const Key&) const [with Value = std::pair<const
long long int, indigo::common::Feature>, Key = long long int, HashFcn
= __gnu_cxx::hash<long long int>, ExtractKey =
google::dense_hash_map<long long int, indigo::common::Feature,
__gnu_cxx::hash<long long int>, std::equal_to<long long int>,
std::allocator<indigo::common::Feature> >::SelectKey, EqualKey =
std::equal_to<long long int>, Alloc =
std::allocator<indigo::common::Feature>]’:
/usr/local/include/google/sparsehash/densehashtable.h:681:
instantiated from ‘google::dense_hashtable_iterator<V, K, HF, ExK,
EqK, A> google::dense_hashtable<Value, Key, HashFcn, ExtractKey,
EqualKey, Alloc>::find(const Key&) [with Value = std::pair<const long
long int, indigo::common::Feature>, Key = long long int, HashFcn =
__gnu_cxx::hash<long long int>, ExtractKey =
google::dense_hash_map<long long int, indigo::common::Feature,
__gnu_cxx::hash<long long int>, std::equal_to<long long int>,
std::allocator<indigo::common::Feature> >::SelectKey, EqualKey =
std::equal_to<long long int>, Alloc =
std::allocator<indigo::common::Feature>]’
/usr/local/include/google/dense_hash_map:185: instantiated from
‘typename google::dense_hashtable<std::pair<const Key, T>, Key,
HashFcn, google::dense_hash_map<Key, T, HashFcn, EqualKey,
Alloc>::SelectKey, EqualKey, Alloc>::iterator
google::dense_hash_map<Key, T, HashFcn, EqualKey, Alloc>::find(const
typename google::dense_hashtable<std::pair<const Key, T>, Key,
HashFcn, google::dense_hash_map<Key, T, HashFcn, EqualKey,
Alloc>::SelectKey, EqualKey, Alloc>::key_type&) [with Key = long long
int, T = indigo::common::Feature, HashFcn = __gnu_cxx::hash<long long
int>, EqualKey = std::equal_to<long long int>, Alloc =
std::allocator<indigo::common::Feature>]’
../src/indigo.tree/tree_gen.cpp:52: instantiated from here
/usr/local/include/google/sparsehash/densehashtable.h:656: error: no
match for call to ‘(const __gnu_cxx::hash<long long int>) (const long
long int&)’
/usr/local/include/google/sparsehash/densehashtable.h: In member
function ‘std::pair<unsigned int, unsigned int>
google::dense_hashtable<Value, Key, HashFcn, ExtractKey, EqualKey,
Alloc>::find_position(const Key&) const [with Value = std::pair<const
long long int, int>, Key = long long int, HashFcn =
__gnu_cxx::hash<long long int>, ExtractKey =
google::dense_hash_map<long long int, int, __gnu_cxx::hash<long long
int>, std::equal_to<long long int>, std::allocator<int> >::SelectKey,
EqualKey = std::equal_to<long long int>, Alloc =
std::allocator<int>]’:
/usr/local/include/google/sparsehash/densehashtable.h:681:
instantiated from ‘google::dense_hashtable_iterator<V, K, HF, ExK,
EqK, A> google::dense_hashtable<Value, Key, HashFcn, ExtractKey,
EqualKey, Alloc>::find(const Key&) [with Value = std::pair<const long
long int, int>, Key = long long int, HashFcn = __gnu_cxx::hash<long
long int>, ExtractKey = google::dense_hash_map<long long int, int,
__gnu_cxx::hash<long long int>, std::equal_to<long long int>,
std::allocator<int> >::SelectKey, EqualKey = std::equal_to<long long
int>, Alloc = std::allocator<int>]’
/usr/local/include/google/dense_hash_map:185: instantiated from
‘typename google::dense_hashtable<std::pair<const Key, T>, Key,
HashFcn, google::dense_hash_map<Key, T, HashFcn, EqualKey,
Alloc>::SelectKey, EqualKey, Alloc>::iterator
google::dense_hash_map<Key, T, HashFcn, EqualKey, Alloc>::find(const
typename google::dense_hashtable<std::pair<const Key, T>, Key,
HashFcn, google::dense_hash_map<Key, T, HashFcn, EqualKey,
Alloc>::SelectKey, EqualKey, Alloc>::key_type&) [with Key = long long
int, T = int, HashFcn = __gnu_cxx::hash<long long int>, EqualKey =
std::equal_to<long long int>, Alloc = std::allocator<int>]’
../src/indigo.tree/tree_gen.cpp:437: instantiated from here
/usr/local/include/google/sparsehash/densehashtable.h:656: error: no
match for call to ‘(const __gnu_cxx::hash<long long int>) (const long
long int&)’
/usr/local/include/google/sparsehash/densehashtable.h: In member
function ‘std::pair<unsigned int, unsigned int>
google::dense_hashtable<Value, Key, HashFcn, ExtractKey, EqualKey,
Alloc>::find_position(const Key&) const [with Value = std::pair<const
long long int, indigo::tree::GenChangeRecord>, Key = long long int,
HashFcn = __gnu_cxx::hash<long long int>, ExtractKey =
google::dense_hash_map<long long int, indigo::tree::GenChangeRecord,
__gnu_cxx::hash<long long int>, std::equal_to<long long int>,
std::allocator<indigo::tree::GenChangeRecord> >::SelectKey, EqualKey =
std::equal_to<long long int>, Alloc =
std::allocator<indigo::tree::GenChangeRecord>]’:
/usr/local/include/google/sparsehash/densehashtable.h:681:
instantiated from ‘google::dense_hashtable_iterator<V, K, HF, ExK,
EqK, A> google::dense_hashtable<Value, Key, HashFcn, ExtractKey,
EqualKey, Alloc>::find(const Key&) [with Value = std::pair<const long
long int, indigo::tree::GenChangeRecord>, Key = long long int, HashFcn
= __gnu_cxx::hash<long long int>, ExtractKey =
google::dense_hash_map<long long int, indigo::tree::GenChangeRecord,
__gnu_cxx::hash<long long int>, std::equal_to<long long int>,
std::allocator<indigo::tree::GenChangeRecord> >::SelectKey, EqualKey =
std::equal_to<long long int>, Alloc =
std::allocator<indigo::tree::GenChangeRecord>]’
/usr/local/include/google/dense_hash_map:185: instantiated from
‘typename google::dense_hashtable<std::pair<const Key, T>, Key,
HashFcn, google::dense_hash_map<Key, T, HashFcn, EqualKey,
Alloc>::SelectKey, EqualKey, Alloc>::iterator
google::dense_hash_map<Key, T, HashFcn, EqualKey, Alloc>::find(const
typename google::dense_hashtable<std::pair<const Key, T>, Key,
HashFcn, google::dense_hash_map<Key, T, HashFcn, EqualKey,
Alloc>::SelectKey, EqualKey, Alloc>::key_type&) [with Key = long long
int, T = indigo::tree::GenChangeRecord, HashFcn = __gnu_cxx::hash<long
long int>, EqualKey = std::equal_to<long long int>, Alloc =
std::allocator<indigo::tree::GenChangeRecord>]’
/usr/local/include/google/dense_hash_map:189: instantiated from ‘T&
google::dense_hash_map<Key, T, HashFcn, EqualKey, Alloc>::eek:perator[]
(const typename google::dense_hashtable<std::pair<const Key, T>, Key,
HashFcn, google::dense_hash_map<Key, T, HashFcn, EqualKey,
Alloc>::SelectKey, EqualKey, Alloc>::key_type&) [with Key = long long
int, T = indigo::tree::GenChangeRecord, HashFcn = __gnu_cxx::hash<long
long int>, EqualKey = std::equal_to<long long int>, Alloc =
std::allocator<indigo::tree::GenChangeRecord>]’
../src/indigo.tree/tree_gen.cpp:452: instantiated from here
/usr/local/include/google/sparsehash/densehashtable.h:656: error: no
match for call to ‘(const __gnu_cxx::hash<long long int>) (const long
long int&)’
/usr/local/include/google/sparsehash/densehashtable.h: In member
function ‘void google::dense_hashtable<Value, Key, HashFcn,
ExtractKey, EqualKey, Alloc>::copy_from(const
google::dense_hashtable<Value, Key, HashFcn, ExtractKey, EqualKey,
Alloc>&, size_t) [with Value = std::pair<const long long int, int>,
Key = long long int, HashFcn = __gnu_cxx::hash<long long int>,
ExtractKey = google::dense_hash_map<long long int, int,
__gnu_cxx::hash<long long int>, std::equal_to<long long int>,
std::allocator<int> >::SelectKey, EqualKey = std::equal_to<long long
int>, Alloc = std::allocator<int>]’:
/usr/local/include/google/sparsehash/densehashtable.h:571:
instantiated from ‘google::dense_hashtable<Value, Key, HashFcn,
ExtractKey, EqualKey, Alloc>::dense_hashtable(const
google::dense_hashtable<Value, Key, HashFcn, ExtractKey, EqualKey,
Alloc>&, size_t) [with Value = std::pair<const long long int, int>,
Key = long long int, HashFcn = __gnu_cxx::hash<long long int>,
ExtractKey = google::dense_hash_map<long long int, int,
__gnu_cxx::hash<long long int>, std::equal_to<long long int>,
std::allocator<int> >::SelectKey, EqualKey = std::equal_to<long long
int>, Alloc = std::allocator<int>]’
/usr/local/include/google/sparsehash/densehashtable.h:466:
instantiated from ‘void google::dense_hashtable<Value, Key, HashFcn,
ExtractKey, EqualKey, Alloc>::resize_delta(size_t, size_t) [with Value
= std::pair<const long long int, int>, Key = long long int, HashFcn =
__gnu_cxx::hash<long long int>, ExtractKey =
google::dense_hash_map<long long int, int, __gnu_cxx::hash<long long
int>, std::equal_to<long long int>, std::allocator<int> >::SelectKey,
EqualKey = std::equal_to<long long int>, Alloc = std::allocator<int>]’
/usr/local/include/google/sparsehash/densehashtable.h:743:
instantiated from ‘std::pair<google::dense_hashtable_iterator<V, K,
HF, ExK, EqK, A>, bool> google::dense_hashtable<Value, Key, HashFcn,
ExtractKey, EqualKey, Alloc>::insert(const Value&) [with Value =
std::pair<const long long int, int>, Key = long long int, HashFcn =
__gnu_cxx::hash<long long int>, ExtractKey =
google::dense_hash_map<long long int, int, __gnu_cxx::hash<long long
int>, std::equal_to<long long int>, std::allocator<int> >::SelectKey,
EqualKey = std::equal_to<long long int>, Alloc = std::allocator<int>]’
/usr/local/include/google/dense_hash_map:207: instantiated from
‘std::pair<typename google::dense_hashtable<std::pair<const Key, T>,
Key, HashFcn, google::dense_hash_map<Key, T, HashFcn, EqualKey,
Alloc>::SelectKey, EqualKey, Alloc>::iterator, bool>
google::dense_hash_map<Key, T, HashFcn, EqualKey, Alloc>::insert(const
typename google::dense_hashtable<std::pair<const Key, T>, Key,
HashFcn, google::dense_hash_map<Key, T, HashFcn, EqualKey,
Alloc>::SelectKey, EqualKey, Alloc>::value_type&) [with Key = long
long int, T = int, HashFcn = __gnu_cxx::hash<long long int>, EqualKey
= std::equal_to<long long int>, Alloc = std::allocator<int>]’
/usr/local/include/google/dense_hash_map:193: instantiated from ‘T&
google::dense_hash_map<Key, T, HashFcn, EqualKey, Alloc>::eek:perator[]
(const typename google::dense_hashtable<std::pair<const Key, T>, Key,
HashFcn, google::dense_hash_map<Key, T, HashFcn, EqualKey,
Alloc>::SelectKey, EqualKey, Alloc>::key_type&) [with Key = long long
int, T = int, HashFcn = __gnu_cxx::hash<long long int>, EqualKey =
std::equal_to<long long int>, Alloc = std::allocator<int>]’
../src/indigo.tree/tree_gen.cpp:379: instantiated from here
/usr/local/include/google/sparsehash/densehashtable.h:521: error: no
match for call to ‘(__gnu_cxx::hash<long long int>) (const long long
int&)’
/usr/local/include/google/sparsehash/densehashtable.h: In member
function ‘void google::dense_hashtable<Value, Key, HashFcn,
ExtractKey, EqualKey, Alloc>::copy_from(const
google::dense_hashtable<Value, Key, HashFcn, ExtractKey, EqualKey,
Alloc>&, size_t) [with Value = std::pair<const long long int,
indigo::tree::GenChangeRecord>, Key = long long int, HashFcn =
__gnu_cxx::hash<long long int>, ExtractKey =
google::dense_hash_map<long long int, indigo::tree::GenChangeRecord,
__gnu_cxx::hash<long long int>, std::equal_to<long long int>,
std::allocator<indigo::tree::GenChangeRecord> >::SelectKey, EqualKey =
std::equal_to<long long int>, Alloc =
std::allocator<indigo::tree::GenChangeRecord>]’:
/usr/local/include/google/sparsehash/densehashtable.h:571:
instantiated from ‘google::dense_hashtable<Value, Key, HashFcn,
ExtractKey, EqualKey, Alloc>::dense_hashtable(const
google::dense_hashtable<Value, Key, HashFcn, ExtractKey, EqualKey,
Alloc>&, size_t) [with Value = std::pair<const long long int,
indigo::tree::GenChangeRecord>, Key = long long int, HashFcn =
__gnu_cxx::hash<long long int>, ExtractKey =
google::dense_hash_map<long long int, indigo::tree::GenChangeRecord,
__gnu_cxx::hash<long long int>, std::equal_to<long long int>,
std::allocator<indigo::tree::GenChangeRecord> >::SelectKey, EqualKey =
std::equal_to<long long int>, Alloc =
std::allocator<indigo::tree::GenChangeRecord>]’
/usr/local/include/google/sparsehash/densehashtable.h:466:
instantiated from ‘void google::dense_hashtable<Value, Key, HashFcn,
ExtractKey, EqualKey, Alloc>::resize_delta(size_t, size_t) [with Value
= std::pair<const long long int, indigo::tree::GenChangeRecord>, Key =
long long int, HashFcn = __gnu_cxx::hash<long long int>, ExtractKey =
google::dense_hash_map<long long int, indigo::tree::GenChangeRecord,
__gnu_cxx::hash<long long int>, std::equal_to<long long int>,
std::allocator<indigo::tree::GenChangeRecord> >::SelectKey, EqualKey =
std::equal_to<long long int>, Alloc =
std::allocator<indigo::tree::GenChangeRecord>]’
/usr/local/include/google/sparsehash/densehashtable.h:743:
instantiated from ‘std::pair<google::dense_hashtable_iterator<V, K,
HF, ExK, EqK, A>, bool> google::dense_hashtable<Value, Key, HashFcn,
ExtractKey, EqualKey, Alloc>::insert(const Value&) [with Value =
std::pair<const long long int, indigo::tree::GenChangeRecord>, Key =
long long int, HashFcn = __gnu_cxx::hash<long long int>, ExtractKey =
google::dense_hash_map<long long int, indigo::tree::GenChangeRecord,
__gnu_cxx::hash<long long int>, std::equal_to<long long int>,
std::allocator<indigo::tree::GenChangeRecord> >::SelectKey, EqualKey =
std::equal_to<long long int>, Alloc =
std::allocator<indigo::tree::GenChangeRecord>]’
/usr/local/include/google/dense_hash_map:207: instantiated from
‘std::pair<typename google::dense_hashtable<std::pair<const Key, T>,
Key, HashFcn, google::dense_hash_map<Key, T, HashFcn, EqualKey,
Alloc>::SelectKey, EqualKey, Alloc>::iterator, bool>
google::dense_hash_map<Key, T, HashFcn, EqualKey, Alloc>::insert(const
typename google::dense_hashtable<std::pair<const Key, T>, Key,
HashFcn, google::dense_hash_map<Key, T, HashFcn, EqualKey,
Alloc>::SelectKey, EqualKey, Alloc>::value_type&) [with Key = long
long int, T = indigo::tree::GenChangeRecord, HashFcn =
__gnu_cxx::hash<long long int>, EqualKey = std::equal_to<long long
int>, Alloc = std::allocator<indigo::tree::GenChangeRecord>]’
/usr/local/include/google/dense_hash_map:193: instantiated from ‘T&
google::dense_hash_map<Key, T, HashFcn, EqualKey, Alloc>::eek:perator[]
(const typename google::dense_hashtable<std::pair<const Key, T>, Key,
HashFcn, google::dense_hash_map<Key, T, HashFcn, EqualKey,
Alloc>::SelectKey, EqualKey, Alloc>::key_type&) [with Key = long long
int, T = indigo::tree::GenChangeRecord, HashFcn = __gnu_cxx::hash<long
long int>, EqualKey = std::equal_to<long long int>, Alloc =
std::allocator<indigo::tree::GenChangeRecord>]’
../src/indigo.tree/tree_gen.cpp:452: instantiated from here
/usr/local/include/google/sparsehash/densehashtable.h:521: error: no
match for call to ‘(__gnu_cxx::hash<long long int>) (const long long
int&)’
make: *** [src/indigo.tree/tree_gen.o] Error 1
 
V

veryhotsausage

I've figured it out after doing some research on the internet and
looking at the source code....

There is no function for __gnc_cxx::hash<long long int> defined in ext/
hash_fun.h !!


I'm not too sure if this is a very smart idea.... but I added two more
methods to ext/hash_fun.h... and it successfully built:

template<>
struct hash<long long int>
{
size_t
operator()(long long int __x) const
{ return __x; }
};

template<>
struct hash<unsigned long long int>
{
size_t
operator()(unsigned long long int __x) const
{ return __x; }
};


I think that there is a reason that the long long int types are not
supported in gcc. I'm hoping someone can tell me why they are not
supported and if there is another way besides adding those template
functions for a hash.

Also, I would really like someone to tell me if by adding those two
template functions, I just shot myself in the foot?

Thanks in advance
 

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