Changeset 82:bce6c8f93d10 in lemon for lemon/maps.h
 Timestamp:
 03/15/08 23:39:41 (16 years ago)
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 default
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 public
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lemon/maps.h
r81 r82 87 87 /// Constant map. 88 88 89 /// This is a \ref concepts::ReadMap "readable" map which assigns a90 /// specifiedvalue to each key.89 /// This \ref concepts::ReadMap "readable map" assigns a specified 90 /// value to each key. 91 91 /// 92 92 /// In other aspects it is equivalent to \ref NullMap. … … 150 150 /// Constant map with inlined constant value. 151 151 152 /// This is a \ref concepts::ReadMap "readable" map which assigns a153 /// specifiedvalue to each key.152 /// This \ref concepts::ReadMap "readable map" assigns a specified 153 /// value to each key. 154 154 /// 155 155 /// In other aspects it is equivalent to \ref NullMap. … … 190 190 191 191 192 /// \briefIdentity map.193 /// 194 /// This map gives back the given key as value without any195 /// modification.192 /// Identity map. 193 194 /// This \ref concepts::ReadMap "readonly map" gives back the given 195 /// key as value without any modification. 196 196 /// 197 197 /// \sa ConstMap … … 204 204 205 205 /// Gives back the given value without any modification. 206 const T& operator[](const T& t) const {207 return t;206 Value operator[](const Key &k) const { 207 return k; 208 208 } 209 209 }; … … 465 465 /// Composition of two maps 466 466 467 /// This \ref concepts::ReadMap "read 467 /// This \ref concepts::ReadMap "readonly map" returns the 468 468 /// composition of two given maps. That is to say, if \c m1 is of 469 469 /// type \c M1 and \c m2 is of \c M2, then for … … 517 517 /// Combination of two maps using an STL (binary) functor. 518 518 519 /// This \ref concepts::ReadMap "read 519 /// This \ref concepts::ReadMap "readonly map" takes two maps and a 520 520 /// binary functor and returns the combination of the two given maps 521 521 /// using the functor. … … 596 596 /// Converts an STL style (unary) functor to a map 597 597 598 /// This \ref concepts::ReadMap "read 598 /// This \ref concepts::ReadMap "readonly map" returns the value 599 599 /// of a given functor. Actually, it just wraps the functor and 600 600 /// provides the \c Key and \c Value typedefs. … … 776 776 /// Sum of two maps 777 777 778 /// This \ref concepts::ReadMap "read 778 /// This \ref concepts::ReadMap "readonly map" returns the sum 779 779 /// of the values of the two given maps. 780 780 /// Its \c Key and \c Value types are inherited from \c M1. … … 825 825 /// Difference of two maps 826 826 827 /// This \ref concepts::ReadMap "read 827 /// This \ref concepts::ReadMap "readonly map" returns the difference 828 828 /// of the values of the two given maps. 829 829 /// Its \c Key and \c Value types are inherited from \c M1. … … 873 873 /// Product of two maps 874 874 875 /// This \ref concepts::ReadMap "read 875 /// This \ref concepts::ReadMap "readonly map" returns the product 876 876 /// of the values of the two given maps. 877 877 /// Its \c Key and \c Value types are inherited from \c M1. … … 922 922 /// Quotient of two maps 923 923 924 /// This \ref concepts::ReadMap "read 924 /// This \ref concepts::ReadMap "readonly map" returns the quotient 925 925 /// of the values of the two given maps. 926 926 /// Its \c Key and \c Value types are inherited from \c M1. … … 970 970 /// Shifts a map with a constant. 971 971 972 /// This \ref concepts::ReadMap "read 972 /// This \ref concepts::ReadMap "readonly map" returns the sum of 973 973 /// the given map and a constant value (i.e. it shifts the map with 974 974 /// the constant). Its \c Key and \c Value are inherited from \c M. … … 1071 1071 /// Scales a map with a constant. 1072 1072 1073 /// This \ref concepts::ReadMap "read 1073 /// This \ref concepts::ReadMap "readonly map" returns the value of 1074 1074 /// the given map multiplied from the left side with a constant value. 1075 1075 /// Its \c Key and \c Value are inherited from \c M. … … 1173 1173 /// Negative of a map 1174 1174 1175 /// This \ref concepts::ReadMap "read 1175 /// This \ref concepts::ReadMap "readonly map" returns the negative 1176 1176 /// of the values of the given map (using the unary \c  operator). 1177 1177 /// Its \c Key and \c Value are inherited from \c M. … … 1271 1271 /// Absolute value of a map 1272 1272 1273 /// This \ref concepts::ReadMap "read 1273 /// This \ref concepts::ReadMap "readonly map" returns the absolute 1274 1274 /// value of the values of the given map. 1275 1275 /// Its \c Key and \c Value are inherited from \c M. … … 1312 1312 } 1313 1313 1314 /// @} 1315 1316 // Logical maps and map adaptors: 1317 1318 /// \addtogroup maps 1319 /// @{ 1320 1321 /// Constant \c true map. 1322 1323 /// This \ref concepts::ReadMap "readonly map" assigns \c true to 1324 /// each key. 1325 /// 1326 /// Note that 1327 /// \code 1328 /// TrueMap<K> tm; 1329 /// \endcode 1330 /// is equivalent to 1331 /// \code 1332 /// ConstMap<K,bool> tm(true); 1333 /// \endcode 1334 /// 1335 /// \sa FalseMap 1336 /// \sa ConstMap 1337 template <typename K> 1338 class TrueMap : public MapBase<K, bool> { 1339 public: 1340 typedef MapBase<K, bool> Parent; 1341 typedef typename Parent::Key Key; 1342 typedef typename Parent::Value Value; 1343 1344 /// Gives back \c true. 1345 Value operator[](const Key&) const { return true; } 1346 }; 1347 1348 /// Returns a \ref TrueMap class 1349 1350 /// This function just returns a \ref TrueMap class. 1351 /// \relates TrueMap 1352 template<typename K> 1353 inline TrueMap<K> trueMap() { 1354 return TrueMap<K>(); 1355 } 1356 1357 1358 /// Constant \c false map. 1359 1360 /// This \ref concepts::ReadMap "readonly map" assigns \c false to 1361 /// each key. 1362 /// 1363 /// Note that 1364 /// \code 1365 /// FalseMap<K> fm; 1366 /// \endcode 1367 /// is equivalent to 1368 /// \code 1369 /// ConstMap<K,bool> fm(false); 1370 /// \endcode 1371 /// 1372 /// \sa TrueMap 1373 /// \sa ConstMap 1374 template <typename K> 1375 class FalseMap : public MapBase<K, bool> { 1376 public: 1377 typedef MapBase<K, bool> Parent; 1378 typedef typename Parent::Key Key; 1379 typedef typename Parent::Value Value; 1380 1381 /// Gives back \c false. 1382 Value operator[](const Key&) const { return false; } 1383 }; 1384 1385 /// Returns a \ref FalseMap class 1386 1387 /// This function just returns a \ref FalseMap class. 1388 /// \relates FalseMap 1389 template<typename K> 1390 inline FalseMap<K> falseMap() { 1391 return FalseMap<K>(); 1392 } 1393 1394 /// @} 1395 1396 /// \addtogroup map_adaptors 1397 /// @{ 1398 1399 /// Logical 'and' of two maps 1400 1401 /// This \ref concepts::ReadMap "readonly map" returns the logical 1402 /// 'and' of the values of the two given maps. 1403 /// Its \c Key type is inherited from \c M1 and its \c Value type is 1404 /// \c bool. \c M2::Key must be convertible to \c M1::Key. 1405 /// 1406 /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for 1407 /// \code 1408 /// AndMap<M1,M2> am(m1,m2); 1409 /// \endcode 1410 /// <tt>am[x]</tt> will be equal to <tt>m1[x]&&m2[x]</tt>. 1411 /// 1412 /// The simplest way of using this map is through the andMap() 1413 /// function. 1414 /// 1415 /// \sa OrMap 1416 /// \sa NotMap, NotWriteMap 1417 template<typename M1, typename M2> 1418 class AndMap : public MapBase<typename M1::Key, bool> { 1419 const M1 &_m1; 1420 const M2 &_m2; 1421 public: 1422 typedef MapBase<typename M1::Key, bool> Parent; 1423 typedef typename Parent::Key Key; 1424 typedef typename Parent::Value Value; 1425 1426 /// Constructor 1427 AndMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} 1428 /// \e 1429 Value operator[](const Key &k) const { return _m1[k]&&_m2[k]; } 1430 }; 1431 1432 /// Returns an \ref AndMap class 1433 1434 /// This function just returns an \ref AndMap class. 1435 /// 1436 /// For example, if \c m1 and \c m2 are both maps with \c bool values, 1437 /// then <tt>andMap(m1,m2)[x]</tt> will be equal to 1438 /// <tt>m1[x]&&m2[x]</tt>. 1439 /// 1440 /// \relates AndMap 1441 template<typename M1, typename M2> 1442 inline AndMap<M1, M2> andMap(const M1 &m1, const M2 &m2) { 1443 return AndMap<M1, M2>(m1,m2); 1444 } 1445 1446 1447 /// Logical 'or' of two maps 1448 1449 /// This \ref concepts::ReadMap "readonly map" returns the logical 1450 /// 'or' of the values of the two given maps. 1451 /// Its \c Key type is inherited from \c M1 and its \c Value type is 1452 /// \c bool. \c M2::Key must be convertible to \c M1::Key. 1453 /// 1454 /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for 1455 /// \code 1456 /// OrMap<M1,M2> om(m1,m2); 1457 /// \endcode 1458 /// <tt>om[x]</tt> will be equal to <tt>m1[x]m2[x]</tt>. 1459 /// 1460 /// The simplest way of using this map is through the orMap() 1461 /// function. 1462 /// 1463 /// \sa AndMap 1464 /// \sa NotMap, NotWriteMap 1465 template<typename M1, typename M2> 1466 class OrMap : public MapBase<typename M1::Key, bool> { 1467 const M1 &_m1; 1468 const M2 &_m2; 1469 public: 1470 typedef MapBase<typename M1::Key, bool> Parent; 1471 typedef typename Parent::Key Key; 1472 typedef typename Parent::Value Value; 1473 1474 /// Constructor 1475 OrMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} 1476 /// \e 1477 Value operator[](const Key &k) const { return _m1[k]_m2[k]; } 1478 }; 1479 1480 /// Returns an \ref OrMap class 1481 1482 /// This function just returns an \ref OrMap class. 1483 /// 1484 /// For example, if \c m1 and \c m2 are both maps with \c bool values, 1485 /// then <tt>orMap(m1,m2)[x]</tt> will be equal to 1486 /// <tt>m1[x]m2[x]</tt>. 1487 /// 1488 /// \relates OrMap 1489 template<typename M1, typename M2> 1490 inline OrMap<M1, M2> orMap(const M1 &m1, const M2 &m2) { 1491 return OrMap<M1, M2>(m1,m2); 1492 } 1493 1314 1494 1315 1495 /// Logical 'not' of a map 1316 1496 1317 /// This \ref concepts::ReadMap "read 1497 /// This \ref concepts::ReadMap "readonly map" returns the logical 1318 1498 /// negation of the values of the given map. 1319 1499 /// Its \c Key is inherited from \c M and its \c Value is \c bool. … … 1392 1572 } 1393 1573 1574 1575 /// Combination of two maps using the \c == operator 1576 1577 /// This \ref concepts::ReadMap "readonly map" assigns \c true to 1578 /// the keys for which the corresponding values of the two maps are 1579 /// equal. 1580 /// Its \c Key type is inherited from \c M1 and its \c Value type is 1581 /// \c bool. \c M2::Key must be convertible to \c M1::Key. 1582 /// 1583 /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for 1584 /// \code 1585 /// EqualMap<M1,M2> em(m1,m2); 1586 /// \endcode 1587 /// <tt>em[x]</tt> will be equal to <tt>m1[x]==m2[x]</tt>. 1588 /// 1589 /// The simplest way of using this map is through the equalMap() 1590 /// function. 1591 /// 1592 /// \sa LessMap 1593 template<typename M1, typename M2> 1594 class EqualMap : public MapBase<typename M1::Key, bool> { 1595 const M1 &_m1; 1596 const M2 &_m2; 1597 public: 1598 typedef MapBase<typename M1::Key, bool> Parent; 1599 typedef typename Parent::Key Key; 1600 typedef typename Parent::Value Value; 1601 1602 /// Constructor 1603 EqualMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} 1604 /// \e 1605 Value operator[](const Key &k) const { return _m1[k]==_m2[k]; } 1606 }; 1607 1608 /// Returns an \ref EqualMap class 1609 1610 /// This function just returns an \ref EqualMap class. 1611 /// 1612 /// For example, if \c m1 and \c m2 are maps with keys and values of 1613 /// the same type, then <tt>equalMap(m1,m2)[x]</tt> will be equal to 1614 /// <tt>m1[x]==m2[x]</tt>. 1615 /// 1616 /// \relates EqualMap 1617 template<typename M1, typename M2> 1618 inline EqualMap<M1, M2> equalMap(const M1 &m1, const M2 &m2) { 1619 return EqualMap<M1, M2>(m1,m2); 1620 } 1621 1622 1623 /// Combination of two maps using the \c < operator 1624 1625 /// This \ref concepts::ReadMap "readonly map" assigns \c true to 1626 /// the keys for which the corresponding value of the first map is 1627 /// less then the value of the second map. 1628 /// Its \c Key type is inherited from \c M1 and its \c Value type is 1629 /// \c bool. \c M2::Key must be convertible to \c M1::Key. 1630 /// 1631 /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for 1632 /// \code 1633 /// LessMap<M1,M2> lm(m1,m2); 1634 /// \endcode 1635 /// <tt>lm[x]</tt> will be equal to <tt>m1[x]<m2[x]</tt>. 1636 /// 1637 /// The simplest way of using this map is through the lessMap() 1638 /// function. 1639 /// 1640 /// \sa EqualMap 1641 template<typename M1, typename M2> 1642 class LessMap : public MapBase<typename M1::Key, bool> { 1643 const M1 &_m1; 1644 const M2 &_m2; 1645 public: 1646 typedef MapBase<typename M1::Key, bool> Parent; 1647 typedef typename Parent::Key Key; 1648 typedef typename Parent::Value Value; 1649 1650 /// Constructor 1651 LessMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} 1652 /// \e 1653 Value operator[](const Key &k) const { return _m1[k]<_m2[k]; } 1654 }; 1655 1656 /// Returns an \ref LessMap class 1657 1658 /// This function just returns an \ref LessMap class. 1659 /// 1660 /// For example, if \c m1 and \c m2 are maps with keys and values of 1661 /// the same type, then <tt>lessMap(m1,m2)[x]</tt> will be equal to 1662 /// <tt>m1[x]<m2[x]</tt>. 1663 /// 1664 /// \relates LessMap 1665 template<typename M1, typename M2> 1666 inline LessMap<M1, M2> lessMap(const M1 &m1, const M2 &m2) { 1667 return LessMap<M1, M2>(m1,m2); 1668 } 1669 1394 1670 /// @} 1395 1671 }
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