Posted on 2013-05-19 16:54
S.l.e!ep.￠% 閱讀(1373)
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C++
好東西一定要分享, 分享而快樂(lè)..
#include?<stdio.h>
#include?<stdlib.h>
#define?ccrContParam?????void?**ccrParam
#define?ccrBeginContext(x)??struct?ccrContextTag?{?int?ccrLine
#define?ccrEndContext(x)?}?*x?=?(struct?ccrContextTag?*)*ccrParam
#define?ccrBegin(x)??????if(!x)?{*ccrParam=malloc(sizeof(*x));?x=?(struct?ccrContextTag?*)*ccrParam;?x->ccrLine=0;}\
????if?(x)?switch(x->ccrLine)?{?case?0:;
#define?ccrFinish(z)?????}?free(*ccrParam);?*ccrParam=0;?return?(z)
#define?ccrFinishV???????}?free(*ccrParam);?*ccrParam=0;?return
#define?ccrReturn(z)?????\
????do?{\
????((struct?ccrContextTag?*)*ccrParam)->ccrLine=__LINE__;\
????return?(z);?case?__LINE__:;\
????}?while?(0)
#define?ccrReturnV???????\
????do?{\
????((struct?ccrContextTag?*)*ccrParam)->ccrLine=__LINE__;\
????return;?case?__LINE__:;\
????}?while?(0)
#define?ccrStop(z)???????do{?free(*ccrParam);?*ccrParam=0;?return?(z);?}while(0)
#define?ccrStopV?????????do{?free(*ccrParam);?*ccrParam=0;?return;?}while(0)
#define?ccrContext???????void?*
#define?ccrAbort(ctx)????do?{?free?(ctx);?ctx?=?0;?}?while?(0)
int?ascending(ccrContParam)?
{
????ccrBeginContext(foo);
????int?i;
????ccrEndContext(foo);
????ccrBegin(foo);
????for?(foo->i?=?0;?foo->i?<?10;?foo->i++)?
????{
????????ccrReturn(foo->i);
????}
????ccrFinish(-1);
}
void?main(void)?
{
????ccrContext?z?=?0;
????do?
????{
????????int?res?=?ascending(&z);
????????if(z)
????????????printf("got?number?%d\n",?res);
????}?while?(z);
}