bsonobjiterator.h File Reference

#include <boost/preprocessor/cat.hpp>

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Classes
class	mongo::BSONObjIterator
class	mongo::BSONObjIteratorSorted
Namespaces
namespace	mongo
Defines
#define	BSONForEach(e, obj)

---

Define Documentation

#define BSONForEach	(	e,
		obj		)

Value:

BSONObjIterator BOOST_PP_CAT(it_,__LINE__)(obj);            \
    for ( BSONElement e;                                        \
            (BOOST_PP_CAT(it_,__LINE__).more() ?                  \
             (e = BOOST_PP_CAT(it_,__LINE__).next(), true) :  \
             false) ;                                         \
            /*nothing*/ )

Similar to BOOST_FOREACH

because the iterator is defined outside of the for, you must use {} around the surrounding scope. Don't do this:

if (foo) BSONForEach(e, obj) doSomething(e);

but this is OK:

if (foo) { BSONForEach(e, obj) doSomething(e); }

Definition at line 123 of file bsonobjiterator.h.