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POProblem properly pushing 2D vector of structs (C++)
 

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  1. POProblem properly pushing 2D vector of structs (C++)
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    <p>I am having trouble filling a vector of type <code>vector&lt;vector&lt;clickable&gt; &gt;</code>. The compiler seems to be ok with pushing back <code>vector&lt;clickable&gt;</code> onto it as long as the push_back happens in the same function as the declaration of the variable, but it doesn't allow it when the variable is declared in a .h file and the push_back is executed in another function of the class.</p> <p>In the following examples, the loops should be exactly the same, except that one calls push_back on a <code>vector&lt;vector&lt;clickable&gt; &gt;</code> that was just declared in the same function, and the other calls push_back on one declared in the .h file.</p> <p>Example of what works (This is from the main function, but it works in any function.):</p> <pre><code>vector&lt;vector&lt;clickable&gt; &gt; clicks; for(int i = 0; i &lt; 10; i++){ vector&lt;clickable&gt; click; for(int j = 0; j &lt; 10; j++){ click.push_back(clickable(Rect(Point(50,50),5,10),"blar")); } clicks.push_back(click); } </code></pre> <p>Example of what doesn't work:</p> <p>Gui.h:</p> <pre><code>#include &lt;vector&gt; //... struct clickable { Rect rect; string msg; bool visible; clickable(Rect rectangle, string message){ rect = rectangle; msg = message; visible = true; } }; //... class Gui{ public: //... void load_environment(); //... private: vector&lt;vector&lt;clickable&gt; &gt; ship; //... } </code></pre> <p>Gui.cpp:</p> <pre><code>#include "Gui.h" //... void Gui::load_environment(){ for(int i = 0; i &lt; 10; i++){ vector&lt;clickable&gt; click; for(int j = 0; j &lt; 10; j++){ click.push_back(clickable(Rect(Point(50,50),5,10), "blar")); } ship.push_back(click); } } //... </code></pre> <p>I think it might have something to do with my failure to overload some operators, but I don't actually have any idea if that is even the cause of the problem, or what I should overload if it is.</p> <p><strong>edit</strong> Here is the text of the error:</p> <p><code>Gui.cpp:47: error: no matching function for call to ‘std::vector&lt;std::vector&lt;std::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt;, std::allocator&lt;std::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt; &gt; &gt;, std::allocator&lt;std::vector&lt;std::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt;, std::allocator&lt;std::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt; &gt; &gt; &gt; &gt;::push_back(std::vector&lt;clickable, std::allocator&lt;clickable&gt; &gt;&amp;)’ /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/stl_vector.h:602: note: candidates are: void std::vector&lt;_Tp, _Alloc&gt;::push_back(const _Tp&amp;) [with _Tp = std::vector&lt;std::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt;, std::allocator&lt;std::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt; &gt; &gt;, _Alloc = std::allocator&lt;std::vector&lt;std::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt;, std::allocator&lt;std::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt; &gt; &gt; &gt;] </code></p>
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      1. POProblem properly pushing 2D vector of structs (C++)
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