Realsoft Graphics Oy
C++ vs. Realsoft-C
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C++ vs. Realsoft-C

Realsoft-C objects are not 'C++' objects. C++ can be used for implementing Realsoft-C objects.

The main philosophical difference between C++ and Realsoft-C is the static nature of C++ versus the dynamic nature of Realsoft-C.

As Realsoft-C is pure 'C' there is also differences in the syntax how objects get created and manipulated. The following table demonstrates the main differences between C++ and Realsoft-C API.

Table 7.1. C++ vs. Realsoft-C

C++ Realsoft-C 
  
sphere = new R3Sphere();
   

  
sphere = R3New(R3CLID_SPHERE,
               R3TAG_END);
  

  
R3VECTOR center = {0.1, 0.0, 0.0};
R3FLOAT radius = 1.0;            
sphere = new R3Sphere(center, radius);
  


R3VECTOR center = {0.1, 0.0, 0.0};
R3FLOAT radius = 1.0;            
sphere = R3New(R3CLID_SPHERE,
    R3T(R3SPHA_Center, &center),
    R3T(R3SPHA_Radius, &radius),
    R3TAG_END);


              
sphere->setCenter(center);
sphere->setRadius(radius);
  

 
R3SetAttrs(sphere,
    R3T(R3SPHA_Center, &center),
    R3T(R3SPHA_Radius, &radius),
    R3TAG_END);


            
R3VECTOR center;
R3FLOAT radius;            
center = sphere->getCenter();
radius = sphere->setRadius();


  
R3VECTOR center;
R3FLOAT radius;            
R3GetAttrs(sphere,
    R3T(R3SPHA_Center, &center),
    R3T(R3SPHA_Radius, &radius),
    R3TAG_END);
  

              
rc = sphere->foo("hello", c, r);
  


rc=R3DoA3(sphere, R3SPHM_FOO, "hello", &c, &r);


            
// call with arbitrary number of args
rvalue = sphere->foo("hello", c, r, rgb);



R3Do(sphere, R3SPHM_FOO,
    R3T(R3RA_Name, "hello"),
    R3T(R3SPHA_Center, &center),
    R3T(R3SPHA_Radius, &radius),
    R3T(R3PRIMA_Color, &rgb),
    R3TAG_END);
  

            
delete sphere;



R3Dispose(sphere);

There is an example samples/kernel/cplusplus demonstrating how to integrate C++ code into Realsoft-C.

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