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POC++ error: 'Line2' has not been declared
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  1. POC++ error: 'Line2' has not been declared
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    copied!<blockquote> <p>C:\CodeBlocks\kool\praks2\src..\include\circle2.h|8|error: 'Line2' does not name a type| C:\CodeBlocks\kool\praks2\src..\include\circle2.h|17|error: 'Line2' has not been declared| ||=== Build finished: 2 errors, 0 warnings ===|</p> </blockquote> <p>circle2.h : </p> <pre><code>#ifndef CIRCLE2_H #define CIRCLE2_H #include "geometry.h" class Circle2 { public: Vector2 p1; float r; Circle2(); Circle2(Vector2 np1, float nr); float circumference(); float area(); bool contains(Vector2 v); bool contains(Line2 l); // error is here. void scale(float factor); friend ostream&amp; operator &lt;&lt;(ostream&amp; out, const Circle2&amp; cir); }; #endif // CIRCLE2_H </code></pre> <p>circle.cpp:</p> <pre><code>bool Circle2::contains(Line2 l) { return 0; } </code></pre> <p>geometry.h:</p> <pre><code>#ifndef GEOMETRY_H #define GEOMETRY_H // These are needed to use the functions in our library #include &lt;iostream&gt; using namespace std; // Include own headers // NB! Add your own headers here! #include "vector2.h" #include "line2.h" #include "circle2.h" #endif // GEOMETRY_H </code></pre> <p>This is circle2.cpp:</p> <pre><code>#include "../include/circle2.h" #include &lt;math.h&gt; Circle2::Circle2() { p1 = Vector2(); r = 0; } Circle2::Circle2(Vector2 np1, float nr) { p1 = np1; r = nr; } float Circle2::circumference() { return 2 * r * M_PI; } float Circle2::area() { return pow(r, 2) * M_PI; } bool Circle2::contains(Vector2 v) { if(p1.distanceFrom(v) &lt;= r) return 1; return 0; } bool Circle2::contains(Line2 l) { return 0; } void Circle2::scale(float factor) { r *= factor; } ostream&amp; operator&lt;&lt;(ostream&amp; out, const Circle2&amp; cir) { out &lt;&lt; "(" &lt;&lt; cir.p1 &lt;&lt; ", " &lt;&lt; cir.r &lt;&lt; ")"; return out; } </code></pre> <p>line2.cpp:</p> <pre><code> #include "../include/line2.h" #include &lt;math.h&gt; Line2::Line2() { p1 = Vector2(); p2 = Vector2(); } Line2::Line2(Vector2 np1, Vector2 np2) { p1 = np1; p2 = np2; } float Line2::length() { return p1.distanceFrom(p2); } ostream&amp; operator&lt;&lt;(ostream&amp; out, const Line2&amp; line) { out &lt;&lt; "(" &lt;&lt; line.p1 &lt;&lt; " - " &lt;&lt; line.p2 &lt;&lt; ")"; return out; } </code></pre> <p>line2.h:</p> <pre><code> #ifndef LINE2_H #define LINE2_H #include "geometry.h" class Line2 { public: Vector2 p1; Vector2 p2; Line2(); Line2(Vector2 np1, Vector2 np2); float length(); friend ostream&amp; operator &lt;&lt;(ostream&amp; out, const Line2&amp; line); }; #endif // LINE2_H </code></pre>
 

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