Re: 2D Array

From:

Paavo Helde <myfirstname@osa.pri.ee>

Newsgroups:

comp.lang.c++

Date:

Sat, 29 Jun 2013 01:12:00 -0500

Message-ID:

<XnsA1EE5D96E4E1Fmyfirstnameosapriee@216.196.109.131>

axcytz@gmail.com wrote in
news:ae2340d7-4be6-4e9f-a89f-0c5bfa0b2ce2@googlegroups.com:

On Friday, June 28, 2013 5:37:46 PM UTC-5, ?? Tiib wrote:

On Saturday, 29 June 2013 01:07:38 UTC+3, axc...@gmail.com wrote:

The error is "c++98 array must be initialized by constructor, not
by {.

..}".

Is it something to be fixed?

You likely need to add --std=c++0x (or something like that) to your

compiler command line to enable C++11 features. It seemingly assumes
that

you want to compile using C++98 features.

It didn't work out. Is there a way to fix it within the code?

In C++98 style one must either use intermediate raw arrays or construct
the inner vectors by some other way, e.g. element-by-element. Both
approaches exemplified below:

#include <iostream>
#include <vector>
int main()
{
    std::vector< std::vector<int> > array;

    int init1[] = {2, 3, 5, 1, 5};
    std::vector<int> row1( init1, init1+sizeof(init1)/sizeof(init1[0]));
    array.push_back(row1);

    int init2[] = {0, 1, 1, 4};
    std::vector<int> row2( init2, init2+sizeof(init2)/sizeof(init2[0]));
    array.push_back(row2);

    std::vector<int> row;
    row.push_back(8);
    row.push_back(2);
    row.push_back(8);
    row.push_back(1);
    array.push_back(row);

}