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POC++ overloading an operator double * Vec
 

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    <p>I'm trying to make a Vec class to represent a set of 3 doubles, x, y, z, respectively. What I would like to do is make it so that I can multiply a scalar times the vector and have it multiply each component. </p> <p>I have been able to get it to work when I mutliply a vector by a scalar, but not when I do the reverse. For example, the following works:</p> <pre><code>Vec a = Vec(1.0, 1.0, 1.0); Vec b = a * 2.0; </code></pre> <p>But, whenever I try to multiply a scalar by a vector, it doesn't work. Ideally the command would look like this:</p> <pre><code>Vec a = Vec(1.0, 1.0, 1.0); Vec b = 2.0 * a; </code></pre> <p>Here is the code I've done so far:</p> <pre><code>#include "Vec.h" #include &lt;limits&gt; #include &lt;cmath&gt; #include "constants.h" #include &lt;iostream&gt; #include &lt;string&gt; double Vec::angle( const Vec &amp; vec) { return acos((this-&gt;dot(vec))/(this-&gt;mag() * mag())); } double Vec::angle_d(const Vec &amp; vec) { return (angle(vec) * _PI / 180.0); } double Vec::angle_r(const Vec &amp; vec) { return this-&gt;angle(vec); } Vec Vec::cross( const Vec&amp; vec) { return Vec( (y * vec.z - z * vec.y), (z * vec.x - x * vec.z), (x * vec.y - y * vec.x)); } double Vec::dot( const Vec &amp; vec) { return (x * vec.x + y * vec.y + z * vec.z); } double Vec::mag() { return std::sqrt(x*x + y*y + z*z); } Vec Vec::operator=(const Vec&amp; rhs) { return Vec(rhs); } Vec Vec::operator*(const Vec&amp; rhs) { return Vec( x * rhs.x, y * rhs.y, z * rhs.z); } Vec Vec::operator*(const double rhs) { return Vec(rhs * x, rhs * y, rhs * z); } Vec::Vec() : x(std::numeric_limits&lt;double&gt;::signaling_NaN()), y(std::numeric_limits&lt;double&gt;::signaling_NaN()), z(std::numeric_limits&lt;double&gt;::signaling_NaN()) { } Vec::Vec( double c) : x(c), y(c), z(c) {} Vec::Vec(const Vec &amp; vec) : x(vec.x), y(vec.y), z(vec.z) { } Vec::Vec(double a, double b, double c) : x(a), y(b), z(c) { } </code></pre>
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