X-Git-Url: http://git.harvie.cz/?p=svn%2FCll1h%2F.git;a=blobdiff_plain;f=demos%2Fansi-c%2Fobjects-c99.c;fp=demos%2Fansi-c%2Fobjects-c99.c;h=0000000000000000000000000000000000000000;hp=f9884ff876a43962e4a250d1d31af693f02a33a4;hb=e63f1bc2438012b5f2f6592a474892501149af18;hpb=6a60bc82e8b8e6cccd0d4c2214a1f291662215f0 diff --git a/demos/ansi-c/objects-c99.c b/demos/ansi-c/objects-c99.c deleted file mode 100644 index f9884ff..0000000 --- a/demos/ansi-c/objects-c99.c +++ /dev/null @@ -1,134 +0,0 @@ -#include -#include -#include - -#define CONFEDERATION(IFACE,TYPE) struct IFACE *interface;struct TYPE *next -#define CREATE(TYPE) (struct TYPE *)malloc(sizeof(struct TYPE)) -#define APPEND(TYPE,MEMBER,LIST) (MEMBER?MEMBER->next=(struct TYPE *)LIST:0,LIST=(struct TYPE *)MEMBER) -#define SELF void *_self, void *_dummy -#define I_AM(TYPE) struct TYPE *self=(struct TYPE *)_self; - -struct Drawable_data -{ - CONFEDERATION(Drawable_interface,Drawable_data); -}; - -struct Drawable_interface -{ - void (*draw)(SELF); - int (*desc)(SELF, int something); -}; - -struct Tri -{ - CONFEDERATION(Drawable_interface,Drawable_data); - int x1; int y1; int x2; int y2; int x3; int y3; -}; - -struct Rect -{ - CONFEDERATION(Drawable_interface,Drawable_data); - int x1; int y1; int x2; int y2; -}; - -void draw_tri(SELF) -{ - I_AM(Tri); - printf("imagine I am drawing %d,%d - %d,%d - %d,%d\n",self->x1,self->y1,self->x2,self->y2,self->x3,self->y3); -}; - -void draw_rect(SELF) -{ - I_AM(Rect); - printf("imagine I am drawing %d,%d - %d,%d\n",self->x1,self->y1,self->x2,self->y2); -}; - -int desc_tri(SELF, int something) -{ - I_AM(Tri); - printf("I am triangle %d,%d - %d,%d - %d,%d, method draw called with argument: %d\n",self->x1,self->y1,self->x2,self->y2,self->x3,self->y3, something); - return something; -}; - -int desc_rect(SELF, int something) -{ - I_AM(Rect); - printf("I am rectangle %d,%d - %d,%d, method draw called with argument: %d\n",self->x1,self->y1,self->x2,self->y2, something); - return something; -}; - -struct Drawable_interface *init_tri_interface(void) -{ - struct Drawable_interface *i=CREATE(Drawable_interface); - /* vsechny metody je bohuzel potreba bindnout rucne, neda se svitit... */ - if(i) { i->draw=draw_tri; i->desc=desc_tri; } - return i; -} - -struct Drawable_interface *init_rect_interface(void) -{ - struct Drawable_interface *i=CREATE(Drawable_interface); - /* vsechny metody je bohuzel potreba bindnout rucne, neda se svitit... */ - if(i) { i->draw=draw_rect; i->desc=desc_rect; } - return i; -} - -struct Tri *create_tri(struct Drawable_interface *i, int x1, int y1, int x2, int y2, int x3, int y3) -{ - struct Tri *t=CREATE(Tri); - if(i && t) - { - t->interface=i; - t->x1=x1;t->y1=y1;t->x2=x2;t->y2=y2;t->x3=x3;t->y3=y3; - } - return t; -} - -struct Rect *create_rect(struct Drawable_interface *i, int x1, int y1, int x2, int y2) -{ - struct Rect *r=CREATE(Rect); - if(i && r) - { - r->interface=i; - r->x1=x1;r->y1=y1;r->x2=x2;r->y2=y2; - } - return r; -} - -int main(void) -{ - struct Drawable_interface *tri_interface=init_tri_interface(); - struct Drawable_interface *rect_interface=init_rect_interface(); - struct Drawable_data *all=NULL,*one; - struct Tri *t; - struct Rect *r; - - r=create_rect(rect_interface,0,10,1,11); - APPEND(Drawable_data,r,all); - t=create_tri(tri_interface,0,0,0,4,3,0); - APPEND(Drawable_data,t,all); - r=create_rect(rect_interface,10,0,11,1); - APPEND(Drawable_data,r,all); - - /* a nyni ... bylo to hodne prace, ale povedlo se ... ! */ - - for(one=all;one;one=one->next) - { - printf("(return value %d)\n",(*(one->interface->desc)) (one,NULL,0)); - (*(one->interface->draw)) (one,NULL); - } - - /* ...a nakonec pro efekt jeste instatni nudlovy kod s kanci prichuti dle ANSI C99: */ - -#define _ARG1(ARG1,...) ARG1 -#define _(OBJECT,...) (assert(OBJECT),/**/(*(OBJECT->interface->_ARG1(__VA_ARGS__,)))/**/(OBJECT,OBJECT->interface->__VA_ARGS__)/**/) -#define FOR_EACH(ONE,ALL) for(ONE=ALL;ONE;ONE=ONE->next) - - FOR_EACH(one,all) - { - printf("(return value %d)\n",_(one,desc,1)); - _(one,draw); - } - - return 0; -}