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View Compilation Error

0_0_37146546_3674.cpp:13:48: error: 'Complext Complext::operator+(Complext, Complext)' must take either zero or one argument
     Complext operator + (Complext a, Complext b) { return Complext(a.a + b.a, a.b + b.b); }
                                                ^
0_0_37146546_3674.cpp:14:48: error: 'Complext Complext::operator-(Complext, Complext)' must take either zero or one argument
     Complext operator - (Complext a, Complext b) { return Complext(a.a - b.a, a.b - b.b); }
                                                ^
0_0_37146546_3674.cpp:15:48: error: 'Complext Complext::operator*(Complext, Complext)' must take either zero or one argument
     Complext operator * (Complext a, Complext b) { return Complext(a.a * b.a - a.b * b.b, a.a * b.b + a.b * b.a); }
                                                ^
0_0_37146546_3674.cpp: In function 'void fft(Complext*, int, int)':
0_0_37146546_3674.cpp:35:42: error: no match for 'operator*' (operand types are 'Complext' and 'Complext')
    for(int j = 0;j<mid;j++,omega = omega * com)
                                          ^
0_0_37146546_3674.cpp:35:42: 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_37146546_3674.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_37146546_3674.cpp:35:44: note:   'Complext' is not derived from 'const std::complex<_Tp>'
    for(int j = 0;j<mid;j++,omega = omega * com)
                                            ^
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_37146546_3674.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_37146546_3674.cpp:35:44: note:   'Complext' is not derived from 'const std::complex<_Tp>'
    for(int j = 0;j<mid;j++,omega = omega * com)
                                            ^
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_37146546_3674.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_37146546_3674.cpp:35:44: note:   'Complext' is not derived from 'const std::complex<_Tp>'
    for(int j = 0;j<mid;j++,omega = omega * com)
                                            ^
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_37146546_3674.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_37146546_3674.cpp:35:44: note:   'Complext' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
    for(int j = 0;j<mid;j++,omega = omega * com)
                                            ^
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_37146546_3674.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_37146546_3674.cpp:35:44: note:   'Complext' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
    for(int j = 0;j<mid;j++,omega = omega * com)
                                            ^
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_37146546_3674.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_37146546_3674.cpp:35:44: note:   'Complext' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
    for(int j = 0;j<mid;j++,omega = omega * com)
                                            ^
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_37146546_3674.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_37146546_3674.cpp:35:44: note:   'Complext' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
    for(int j = 0;j<mid;j++,omega = omega * com)
                                            ^
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_37146546_3674.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_37146546_3674.cpp:35:44: note:   'Complext' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
    for(int j = 0;j<mid;j++,omega = omega * com)
                                            ^
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_37146546_3674.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, _Tp>, typename std::__fun<std::__multiplies, _Tp>::result_type> std::operator*(const std::valarray<_Tp>&, const std::valarray<_Tp>&)
 _DEFINE_BINARY_OPERATOR(*, __multiplies)
 ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/valarray:1169:1: note:   template argument deduction/substitution failed:
0_0_37146546_3674.cpp:35:44: note:   'Complext' is not derived from 'const std::valarray<_Tp>'
    for(int j = 0;j<mid;j++,omega = omega * com)
                                            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/includ


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