View Compilation Error

0_0_13481986_21564.cpp: In function 'std::vector<std::basic_string<char> > split(std::string&)':
0_0_13481986_21564.cpp:25:32: error: no matching function for call to 'find_if(iter&, iter&, <unresolved overloaded function type>)'
   b = find_if( b , e , isalpha );
                                ^
0_0_13481986_21564.cpp:25:32: note: candidate is:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:62:0,
                 from 0_0_13481986_21564.cpp:5:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:3794:5: note: template<class _IIter, class _Predicate> _IIter std::find_if(_IIter, _IIter, _Predicate)
     find_if(_InputIterator __first, _InputIterator __last,
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:3794:5: note:   template argument deduction/substitution failed:
0_0_13481986_21564.cpp:25:32: note:   couldn't deduce template parameter '_Predicate'
   b = find_if( b , e , isalpha );
                                ^