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myvec3f a = myvec3f(0.0f, 0.0f, 0.0f); myvec3f b = myvec3f(1.0f, 0.0f, 1.0f); f c = 2.0f; a += b * c;
myvec3f& operator+=(const myvec3f&);
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myvec3f& myvec3f::operator+=(const myvec3f& vec3f_to_add) { // code code code... return *this; }
using namespace common;