c++ - Overloading assignment operator in order to return std::vector -

the function below converts contents stored in class cvector, std::vector , returns this.

template <class t> std::vector<t> cvector<t>::converttostdvector() {     std::vector<t> vec;     vec.resize(m_nsize);     (unsigned = 0; < m_nsize; ++i) {         vec[i] = m_pdata[i];     }     return vec; } 

the above works perfect, instead of using function this, overload assignment operator , same thing.

i've tried following:

template <class t> class cvector { public:      cvector(unsigned nsize, allocenum ealloctype=malloc);     cvector(t *pdata, unsigned nsize, bool bcopy=false);      // convert std vector     std::vector<t> operator=(const cvector<t> &cvec);      //..     //.... }  template <class t> std::vector<t> cvector<t>::operator=(const cvector<t> &cvec) {     std::vector<t> vec;     vec.resize(m_nsize);     (unsigned = 0; < m_nsize; ++i) {         vec[i] = m_pdata[i];     }     return vec; } 

this compiles fine, when try call in code, e.g.

std::vector<float> vec = cvectorinstance; 

than following error during compilation:

error: conversion 'cvector' non-scalar type 'std::vector >' requested"

i'm not sure going wrong here, hope can / explain.

the assignment operator looks this:

class c  { public:     c& operator=(const c& other) {...} }; 

it used assign instance of class c not of class. can overload it, takes objects of other classes , assigns them class not other way around. so

cvector& operator=(const std::vector<...>& other) { ... } 

would take values inside other , assign them cvector. if want other thing use converttostdvector function.