QxForeach.h File Reference

foreach-style (based on BOOST_FOREACH macro) to iterate over all stl, boost and Qt containers + qx::QxCollection<Key, Value> QxOrm library container More...

#include <boost/foreach.hpp>
#include <QxTraits/is_qx_collection.h>

Go to the source code of this file.

Classes
struct	qx::foreach::qx_deref_boost_or_qx< T, C, is_qx_collection >
struct	qx::foreach::qx_deref_boost_or_qx< T, C, true >
struct	qx::foreach::qx_deref_deduce< T, C, is_qx_collection >
struct	qx::foreach::qx_deref_deduce< T, C, true >
struct	qx::foreach::qx_deref
Namespaces
namespace	qx
	Root namespace for all QxOrm library features.
namespace	qx::foreach
	Foreach-style (based on BOOST_FOREACH macro) to iterate over all stl, boost and Qt containers + qx::QxCollection<Key, Value> QxOrm library container.
Defines
#define	BOOST_FOREACH_ID(x)   x
#define	QX_FOREACH_DEREF(COL)   qx::foreach::qx_deref::deref(BOOST_FOREACH_ID(_foreach_cur), BOOST_FOREACH_TYPEOF(COL))
#define	QX_FOREACH_DEREF_REVERSE(COL)   qx::foreach::qx_deref::deref_reverse(BOOST_FOREACH_ID(_foreach_cur), BOOST_FOREACH_TYPEOF(COL))
#define	QX_FOREACH(VAR, COL)
#define	QX_FOREACH_REVERSE(VAR, COL)
#define	_foreach   QX_FOREACH
#define	_foreach_reverse   QX_FOREACH_REVERSE
#define	_foreach_if(VAR, COL, COND)   _foreach(VAR, COL) if (COND)
#define	_foreach_reverse_if(VAR, COL, COND)   _foreach_reverse(VAR, COL) if (COND)

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Detailed Description

foreach-style (based on BOOST_FOREACH macro) to iterate over all stl, boost and Qt containers + qx::QxCollection<Key, Value> QxOrm library container

Author:

Lionel Marty

Quick sample using QX_FOREACH (or _foreach) macro :

// iterate over drugs container using QxOrm '_foreach' keyword
_foreach(drug_ptr p, lstDrugs)
{ qDebug() << qPrintable(p->name) << " " << qPrintable(p->desc); }

Note:

QxOrm library provides also other macros to iterator over all containers : _foreach_reverse, _foreach_if, _foreach_reverse_if

Definition in file QxForeach.h.

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Define Documentation

#define _foreach   QX_FOREACH

Definition at line 165 of file QxForeach.h.

#define _foreach_if	(		VAR,
			COL,
			COND
	)		_foreach(VAR, COL) if (COND)

Definition at line 168 of file QxForeach.h.

#define _foreach_reverse   QX_FOREACH_REVERSE

Definition at line 166 of file QxForeach.h.

#define _foreach_reverse_if	(		VAR,
			COL,
			COND
	)		_foreach_reverse(VAR, COL) if (COND)

Definition at line 169 of file QxForeach.h.

#define BOOST_FOREACH_ID

(

x

)

x

Definition at line 59 of file QxForeach.h.

#define QX_FOREACH	(		VAR,
			COL
	)

Value:

BOOST_FOREACH_PREAMBLE()                                                                     \
   if (boost::foreach_detail_::auto_any_t BOOST_FOREACH_ID(_foreach_col) = BOOST_FOREACH_CONTAIN(COL)) {} else    \
   if (boost::foreach_detail_::auto_any_t BOOST_FOREACH_ID(_foreach_cur) = BOOST_FOREACH_BEGIN(COL)) {} else      \
   if (boost::foreach_detail_::auto_any_t BOOST_FOREACH_ID(_foreach_end) = BOOST_FOREACH_END(COL)) {} else        \
   for (bool BOOST_FOREACH_ID(_foreach_continue) = true;                                                          \
         BOOST_FOREACH_ID(_foreach_continue) && !BOOST_FOREACH_DONE(COL);                                         \
         BOOST_FOREACH_ID(_foreach_continue) ? BOOST_FOREACH_NEXT(COL) : (void)0)                                 \
      if  (boost::foreach_detail_::set_false(BOOST_FOREACH_ID(_foreach_continue))) {} else                        \
      for (VAR = QX_FOREACH_DEREF(COL); !BOOST_FOREACH_ID(_foreach_continue); BOOST_FOREACH_ID(_foreach_continue) = true)

Definition at line 127 of file QxForeach.h.

#define QX_FOREACH_DEREF

(

COL

)

qx::foreach::qx_deref::deref(BOOST_FOREACH_ID(_foreach_cur), BOOST_FOREACH_TYPEOF(COL))

Definition at line 121 of file QxForeach.h.

#define QX_FOREACH_DEREF_REVERSE

(

COL

)

qx::foreach::qx_deref::deref_reverse(BOOST_FOREACH_ID(_foreach_cur), BOOST_FOREACH_TYPEOF(COL))

Definition at line 124 of file QxForeach.h.

#define QX_FOREACH_REVERSE	(		VAR,
			COL
	)

Value:

BOOST_FOREACH_PREAMBLE()                                                                     \
   if (boost::foreach_detail_::auto_any_t BOOST_FOREACH_ID(_foreach_col) = BOOST_FOREACH_CONTAIN(COL)) {} else    \
   if (boost::foreach_detail_::auto_any_t BOOST_FOREACH_ID(_foreach_cur) = BOOST_FOREACH_RBEGIN(COL)) {} else     \
   if (boost::foreach_detail_::auto_any_t BOOST_FOREACH_ID(_foreach_end) = BOOST_FOREACH_REND(COL)) {} else       \
   for (bool BOOST_FOREACH_ID(_foreach_continue) = true;                                                          \
         BOOST_FOREACH_ID(_foreach_continue) && !BOOST_FOREACH_RDONE(COL);                                        \
         BOOST_FOREACH_ID(_foreach_continue) ? BOOST_FOREACH_RNEXT(COL) : (void)0)                                \
      if  (boost::foreach_detail_::set_false(BOOST_FOREACH_ID(_foreach_continue))) {} else                        \
      for (VAR = QX_FOREACH_DEREF_REVERSE(COL); !BOOST_FOREACH_ID(_foreach_continue); BOOST_FOREACH_ID(_foreach_continue) = true)

Definition at line 138 of file QxForeach.h.