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View Compilation Error

0_0_17322562_598.cpp: In function 'void init()':
0_0_17322562_598.cpp:94:21: error: reference to 'hash' is ambiguous
  unsigned hashval = hash(dest);
                     ^
0_0_17322562_598.cpp:46:10: note: candidates are: unsigned int hash(const char*)
 unsigned hash(const char *str)
          ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bitset:47,
                 from 0_0_17322562_598.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_17322562_598.cpp:105:14: error: reference to 'hash' is ambiguous
    hashval = hash(status);
              ^
0_0_17322562_598.cpp:46:10: note: candidates are: unsigned int hash(const char*)
 unsigned hash(const char *str)
          ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bitset:47,
                 from 0_0_17322562_598.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_17322562_598.cpp: In function 'int main()':
0_0_17322562_598.cpp:125:25: error: reference to 'hash' is ambiguous
   for(int i = ans_heads[hash(orig)]; que[i].pre != -1; i = que[i].pre)
                         ^
0_0_17322562_598.cpp:46:10: note: candidates are: unsigned int hash(const char*)
 unsigned hash(const char *str)
          ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bitset:47,
                 from 0_0_17322562_598.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^


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