please help me with these small question on circle drawing strcuture

This is a discussion on please help me with these small question on circle drawing strcuture within the C++ Programming forums, part of the General Programming Boards category; Hi Would you please help me with the simple question in blue? Thanks. Code: // circstrc.cpp // circles as graphics ...

  1. #1
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    please help me with these small question on circle drawing strcuture

    Hi

    Would you please help me with the simple question in blue? Thanks.


    Code:
    // circstrc.cpp
    // circles as graphics objects
    #include "msoftcon.h"         // for graphics functions
    ////////////////////////////////////////////////////////////////
    struct circle                 //graphics circle
       {
       int xCo, yCo;              //coordinates of center
       int radius;                
       color fillcolor;           //color
       fstyle fillstyle;          //fill pattern
       };
    ////////////////////////////////////////////////////////////////
    
    /* Are "color" and "fstyle" some kind of data types? Perhaps, the details for these data types are in 'msoftcon' source file. */
    
    void circ_draw(circle c)             
       {
       set_color(c.fillcolor);               //set color
       set_fill_style(c.fillstyle);          //set fill pattern
       draw_circle(c.xCo, c.yCo, c.radius);  //draw solid circle            
       }
    //--------------------------------------------------------------
    
    int main()
       {
       init_graphics();           //initialize graphics system
                                  //create circles
    
    /* Is "init_graphics()" a some kind of function? */
       
       circle c1 = { 15, 7, 5, cBLUE, X_FILL };
       circle c2 = { 41, 12, 7, cRED, O_FILL }; 
       circle c3 = { 65, 18, 4, cGREEN, MEDIUM_FILL };
    
    /* The original structure was in this format:
    struct circle { int xCo, yCo; int radius; color fillcolor; fstyle fillstyle; };
    
    The don't you think the initialization should be this way (please notice the semicolons):
    circle c1 = { 15, 7; 5; cBLUE; X_FILL }; */
    
       circ_draw(c1);             //draw circles
       circ_draw(c2);
       circ_draw(c3);
       set_cursor_pos(1, 25);     //cursor to lower left corner
       return 0;
       }
    I'm an outright beginner. Using Win XP Pro and Code::Blocks. Be nice to me, please.

  2. #2
    and the Hat of Guessing tabstop's Avatar
    Join Date
    Nov 2007
    Posts
    14,185
    1. If color, fstyle, and init_graphics() mean anything at all, then they have to come from msoftcon.h.

    2. We haven't ever, and don't now, use semicolons inside initialization groups.

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