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POC++ class is not being included properly
 

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  1. POC++ class is not being included properly
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    <p>I have a problem which is either something I have completely failed to understand, or very strange. It's probably the first one, but I have spent the whole afternoon googling with no success, so here goes...</p> <p>I have a class called Schedule, which has as a member a vector of Room. However, when I compile using cmake, or even by hand, I get the following:</p> <pre><code>In file included from schedule.cpp:1: schedule.h:13: error: ‘Room’ was not declared in this scope schedule.h:13: error: template argument 1 is invalid schedule.h:13: error: template argument 2 is invalid schedule.cpp: In constructor ‘Schedule::Schedule(int, int, int)’: schedule.cpp:12: error: ‘Room’ was not declared in this scope schedule.cpp:12: error: expected ‘;’ before ‘r’ schedule.cpp:13: error: request for member ‘push_back’ in ‘((Schedule*)this)-&gt;Schedule::_sched’, which is of non-class type ‘int’ schedule.cpp:13: error: ‘r’ was not declared in this scope </code></pre> <p>Here are the relevant bits of code:</p> <pre><code>#include &lt;vector&gt; #include "room.h" class Schedule { private: std::vector&lt;Room&gt; _sched; //line 13 int _ndays; int _nrooms; int _ntslots; public: Schedule(); ~Schedule(); Schedule(int nrooms, int ndays, int ntslots); }; Schedule::Schedule(int nrooms, int ndays, int ntslots):_ndays(ndays), _nrooms(nrooms),_ntslots(ntslots) { for (int i=0; i&lt;nrooms;i++) { Room r(ndays,ntslots); _sched.push_back(r); } } </code></pre> <p>In theory, g++ should compile a class before the one that includes it. There are no circular dependencies here, it's all straightforward stuff. I am completely stumped on this one, which is what leads me to believe that I must be missing something. :-D</p> <p>Edit:<br> The contents of <code>room.h</code> from the comments below:</p> <pre><code>#include &lt;vector&gt; #include "day.h" class Room { private: std::vector&lt;Day&gt; _days; public: Room(); Room(int ndays, int length); ~Room(); }; </code></pre>
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    1. COWhat does room.h look like? Is the room class capitalized there, or lowercase?
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    2. COIs `Room` by any chance defined inside a namespace?
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    3. COIt looks like this: #include <vector> #include "day.h" class Room { private: std::vector<Day> _days; public: Room(); Room(int ndays, int length); ~Room(); };
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