一个函数返回值为vector类型的问题

[hxwangcong]

我的代码这样写：

#include "iostream"
#include "vector"
using namespace std;

vector<int> plus(vector<int> &v1,vector<int> &v2)
{
    int lenth=v1.size()>v2.size()?v1.size():v2.size();
    vector<int> v(lenth+1);
    for(int i=0;i<lenth;i++)
    {
        v[i]=v1[i]+v2[i];
        if(v[i]>=10)
        {
            v[i+1]++;
            v[i]-=10;
        }
    }
    if(v[lenth]==0)
    {
        vector<int>::iterator it=v.end()-1;
        v.erase(it);
    }
    return v;
}

int main()
{
	vector<int> v1;
    vector<int> v2;
	v1.push_back(3);
	v1.push_back(5);
	v1.push_back(8);
	v2.push_back(9);
	v2.push_back(9);
	v2.push_back(9);
    vector<int> v3;
    v3=plus(v1,v2);
    for(int i=0;i<v3.size();i++)
    {
        cout<<v3[i];
    }
	//system("pause");
	return 0;
}

VC++里编译通过，但DEV-CPP里编不过去，错误信息：
In function `int main()':
1.cpp non-lvalue in unary `&'
no match for call to `(std::plus<_Tp>) (std::vector<int, std::allocator<int> >&, std::vector<int, std::allocator<int> >&)'
note d:\DEV-CPP\include\c++\3.4.2\bits\stl_function.h:138 candidates are: _Tp std::plus<_Tp>::operator()(const _Tp&, const _Tp&) const

[yshuise]

这个plus同标准的std::plus发生冲突了，改一个名字。

[Walf_ghoul]

:: === 简单, Debug ===
\main.cpp:54: error: non-lvalue in unary `&'
\main.cpp:54: error: no match for call to `(std::plus<_Tp>) (std::vector<int, std::allocator<int> >&, std::vector<int, std::allocator<int> >&)'
C:\My software\CodeBlocks\CodeBlocks\bin\..\lib\gcc\mingw32\3.4.4\..\..\..\..\include\c++\3.4.4\bits\stl_function.h:138: note: candidates are: _Tp std::plus<_Tp>::operator()(const _Tp&, const _Tp&) const\main.cpp:55: warning: comparison between signed and unsigned integer expressions
:: === Build finished: 3 errors, 1 warnings ===

[pengzhixi]

名字冲突了 ！