Eclipse producing error warning but compiler says 'no'

Asked Mar 24 '17 at 20:07

Active Mar 27 '17 at 21:09

Viewed 78 times

I'm using eclipse Neon.2 (4.6.2) and I get an error message warning:

"Function 'next' could not be resolved"

I have included support for c++11 (used this: Enabling C++11 in Eclipse Juno/Kepler/Luna CDT) but I still get the warning which is very misleading.

Includes:

#include <stdlib.h>
#include <string>
#include <fstream>
#include <iostream>
#include <algorithm>
#include <functional>
#include <iterator>
#include <array>
#include <vector>

Code:

std::vector<int> myvector;

...

void feefiefoefoo(int** matrix, int rows, int cols) {
    int vec_size = myvector.size();
    int column_pointer = 0;
    auto it = myvector.begin();

    for (int i = 0; i < rows; ++i) {
        for (int j = column_pointer; j < vec_size; ++j) {
            matrix[i][j] = *it;
            it = std::next(it); // **THIS IS THE LINE**
        }

        column_pointer++;
        vec_size++;
        it = myvector.begin();
    }
}

edited May 23 '17 at 12:17

Community

asked Mar 24 '17 at 20:07

Anna K.

3

Did you [`#include `](http://en.cppreference.com/w/cpp/iterator/next)? – WhiZTiM Mar 24 '17 at 20:09
@WhiZTiM Yes, I updated my answer with all the includes. – Anna K. Mar 24 '17 at 20:11
What is the type of `it`? – NathanOliver Mar 24 '17 at 20:11
Is vec_size supposed to be cols? cols is unused – systemcpro Mar 24 '17 at 20:14
We need to see the definition of `myvetor.begin();` – Richard Critten Mar 24 '17 at 20:15
Replacing `auto` with `std::vector::iterator` (the actual type) does not remove the error. – Anna K. Mar 24 '17 at 20:16
Adding `std::vector myvetor;` above the function. It compiles for me. g++ 5.1.0 – Richard Critten Mar 24 '17 at 20:20
@RichardCritten Yes it compiles for me too, but eclipse produces an error *warning* . I know... it sounds like a contradiction using those two terms together :) – Anna K. Mar 24 '17 at 20:24
2

Sorry but we are going to enter opinion territory here: Eclipse CDT is not very good at parsing C++11 and beyond and can give false errors/warnings. Eclipse CDT does not use the compiler engine you use to do your compilations but its own parser, it gets things wrong on occasion. – Richard Critten Mar 24 '17 at 20:27
@RichardCritten 1) That's not helping with the question. 2) If you feel Eclipse CDT is lacking something you should at least recommend an alternative that is not lacking those features. – Anna K. Mar 24 '17 at 21:41

Eclipse producing error warning but compiler says 'no'

0 Answers0