winamp/Src/Wasabi/bfc/foreach.h

56 lines
1014 B
C++

#ifndef _FOREACH_H
#define _FOREACH_H
#include "memblock.h"
#include "ptrlist.h"
// foreach stuff
/* use like this:
PtrList<blah> list;
foreach(list)
list.getfor()->booga();
something(list.getfor());
endfor
*/
// foreach stuff
class __foreach
{
public:
__foreach(const PtrListRoot &ptrlist, int reverse=FALSE);
__foreach(const PtrListRoot *ptrlist, int reverse=FALSE);
int done() const;
void *next(int advance = TRUE);
void *getPtr() const;
int getPos() const;
private:
MemBlock<void *> list;
int pos;
};
#define foreach(x) \
{ \
void *__fe_void; \
__foreach ___f(x); \
for (__fe_void = ___f.getPtr(); !___f.done(); __fe_void = ___f.next()) {
#define getfor() castFor(__fe_void)
#define endfor \
} \
}
#define foreach_reverse(x) \
{ \
void *__fe_void; \
__foreach ___f(x, TRUE); \
for (__fe_void = ___f.getPtr(); !___f.done(); __fe_void = ___f.next()) {
#define getfor() castFor(__fe_void)
#define endfor \
} \
}
#define foreach_index (___f.getPos())
#endif