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View Compilation Error

0_0_31835761_13900.cpp:57:16: error: invalid use of non-static data member 'Complex::maxn'
 const int maxn=55555;
                ^
0_0_31835761_13900.cpp:58:11: error: from this location
 Complex A[maxn<<2],B[maxn<<2];
           ^
0_0_31835761_13900.cpp:57:16: error: invalid use of non-static data member 'Complex::maxn'
 const int maxn=55555;
                ^
0_0_31835761_13900.cpp:58:22: error: from this location
 Complex A[maxn<<2],B[maxn<<2];
                      ^
0_0_31835761_13900.cpp:100:1: error: expected '}' at end of input
 }
 ^
0_0_31835761_13900.cpp: In constructor 'Complex::Complex(double, double)':
0_0_31835761_13900.cpp:14:36: error: a function-definition is not allowed here before '{' token
     Complex operator+(Complex &tt) { return Complex(x + tt.x, y + tt.y); }
                                    ^
0_0_31835761_13900.cpp:15:36: error: a function-definition is not allowed here before '{' token
     Complex operator-(Complex &tt) { return Complex(x - tt.x, y - tt.y); }
                                    ^
0_0_31835761_13900.cpp:16:36: error: a function-definition is not allowed here before '{' token
     Complex operator*(Complex &tt) { return Complex(x * tt.x - y * tt.y, x * tt.y + y * tt.x); }
                                    ^
0_0_31835761_13900.cpp: In member function 'void Complex::FFT::fft(Complex*, int, int)':
0_0_31835761_13900.cpp:31:35: error: no match for 'operator*' (operand types are 'Complex' and 'Complex')
                     Complex t = w * a[j + m / 2];
                                   ^
0_0_31835761_13900.cpp:31:35: note: candidates are:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_31835761_13900.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:381:5: note: template<class _Tp> std::complex<_Tp> std::operator*(const std::complex<_Tp>&, const std::complex<_Tp>&)
     operator*(const complex<_Tp>& __x, const complex<_Tp>& __y)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:381:5: note:   template argument deduction/substitution failed:
0_0_31835761_13900.cpp:31:48: note:   'Complex' is not derived from 'const std::complex<_Tp>'
                     Complex t = w * a[j + m / 2];
                                                ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_31835761_13900.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:390:5: note: template<class _Tp> std::complex<_Tp> std::operator*(const std::complex<_Tp>&, const _Tp&)
     operator*(const complex<_Tp>& __x, const _Tp& __y)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:390:5: note:   template argument deduction/substitution failed:
0_0_31835761_13900.cpp:31:48: note:   'Complex' is not derived from 'const std::complex<_Tp>'
                     Complex t = w * a[j + m / 2];
                                                ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_31835761_13900.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:399:5: note: template<class _Tp> std::complex<_Tp> std::operator*(const _Tp&, const std::complex<_Tp>&)
     operator*(const _Tp& __x, const complex<_Tp>& __y)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:399:5: note:   template argument deduction/substitution failed:
0_0_31835761_13900.cpp:31:48: note:   'Complex' is not derived from 'const std::complex<_Tp>'
                     Complex t = w * a[j + m / 2];
                                                ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/valarray:587:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:94,
                 from 0_0_31835761_13900.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/valarray_after.h:404:5: note: template<class _Dom1, class _Dom2> std::_Expr<std::_BinClos<std::__multiplies, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__multiplies, typename _Dom1::value_type>::result_type> std::operator*(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(*, __multiplies)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/valarray_after.h:404:5: note:   template argument deduction/substitution failed:
0_0_31835761_13900.cpp:31:48: note:   'Complex' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
                     Complex t = w * a[j + m / 2];
                                                ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/valarray:587:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:94,
                 from 0_0_31835761_13900.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/valarray_after.h:404:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__multiplies, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__multiplies, typename _Dom1::value_type>::result_type> std::operator*(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)
     _DEFINE_EXPR_BINARY_OPERATOR(*, __multiplies)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/valarray_after.h:404:5: note:   template argument deduction/substitution failed:
0_0_31835761_13900.cpp:31:48: note:   'Complex' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
                     Complex t = w * a[j + m / 2];
                                                ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/valarray:587:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:94,
                 from 0_0_31835761_13900.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/valarray_after.h:404:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__multiplies, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__multiplies, typename _Dom1::value_type>::result_type> std::operator*(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(*, __multiplies)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/valarray_after.h:404:5: note:   template argument deduction/substitution failed:
0_0_31835761_13900.cpp:31:48: note:   'Complex' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
                     Complex t = w * a[j + m / 2];
                                                ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/valarray:587:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:94,
                 from 0_0_31835761_13900.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/valarray_after.h:404:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__multiplies, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__multiplies, typename _Dom1::value_type>::result_type> std::operator*(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray<typename _Dom::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(*, __multiplies)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/valarray_after.h:404:5: note:   template argument deduction/substitution failed:
0_0_31835761_13900.cpp:31:48: note:   'Complex' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
                     Complex t = w * a[j + m / 2];
                                                ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/valarray:587:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:94,
                 from 0_0_31835761_13900.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/valarray_after.h:404:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__multiplies, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__multiplies, typename _Dom1::value_type>::result_type> std::operator*(const std::valarray<typename _Dom::value_type>&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(*, __multiplies)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/valarray_after.h:404:5: note:   template argument deduction/substitution failed:
0_0_31835761_13900.cpp:31:48: note:   'Complex' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
                     Complex t = w * a[j + m / 2];
                                                ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:94:0,
                 from 0_0_31835761_13900.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/valarray:1169:1: note: template<class _Tp> std::_Expr<std::_BinClos<std::__multiplies, std::_ValArray, std::_ValArray, _Tp, _T


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