我收到错误消息:
iterDelayEst.cpp:32:21: error: no matching function for call to ‘conj(CArray&)’
auto nf1= ((x*conj(x)) * (x2*conj(x2)))
^
iterDelayEst.cpp:32:21: note: candidates are:
In file included from myfft.cpp:1:0:
/usr/include/c++/4.9/complex:669:5: note: template<class _Tp> std::complex<_Tp> std::conj(const std::complex<_Tp>&)
conj(const complex<_Tp>& __z)
^
/usr/include/c++/4.9/complex:669:5: note: template argument deduction/substitution failed:
In file included from myfft.cpp:16:0:
iterDelayEst.cpp:32:21: note: ‘CArray {aka std::valarray<std::complex<double> >}’ is not derived from ‘const std::complex<_Tp>’
auto nf1= ((x*conj(x)) * (x2*conj(x2)))
^
In file included from myfft.cpp:1:0:
/usr/include/c++/4.9/complex:1924:5: note: template<class _Tp> typename __gnu_cxx::__promote<_Tp>::__type std::conj(_Tp)
conj(_Tp __x)
^
/usr/include/c++/4.9/complex:1924:5: note: template argument deduction/substitution failed:
/usr/include/c++/4.9/complex: In substitution of ‘template<class _Tp> typename __gnu_cxx::__promote<_Tp>::__type std::conj(_Tp) [with _Tp = std::valarray<std::complex<double> >]’:
iterDelayEst.cpp:32:21: required from here
/usr/include/c++/4.9/complex:1924:5: error: no type named ‘__type’ in ‘struct __gnu_cxx::__promote<std::valarray<std::complex<double> >, false>’
In file included from myfft.cpp:16:0:
iterDelayEst.cpp:32:37: error: no matching function for call to ‘conj(CArray&)’
auto nf1= ((x*conj(x)) * (x2*conj(x2)))
^
尝试在我的程序中运行以下函数时:
//iterDelayEst.cpp
#include <complex>
#include "binFreq.cpp"
#include <valarray>
typedef std::complex<double> Complex;
typedef std::valarray<Complex> CArray;
double iterDelayEst(int n,CArray& x, CArray& x2)
{
/****************************constants*********************/
//exit if uncertainty below threshold
double thr_samples = 1e-7;
//exit after fixed number of iterations
double nIter = 25;
fft(x);
fft(x2);
//frequency domain representation of signals
std::vector<double> tau;
auto f = binFreq(n);
std::vector<double> e;
int j;
for ( j = 0 ; j < n ; j++ ){
auto nf1= ((x*std::conj(x) * (x2*std::conj(x2));
nf1 +=nf1;
auto nf2 =std::sqrt(nf1);
auto nf =nf2/(double)n;
}
}
我想这可能与conj参数类型有关,但我可以弄清楚如何解决它。感谢您的帮助,并随时要求我澄清任何事情。