inserter

1. DefinitionThe insert iterator is also called the inserter ).2. RoleThe main function of inserting an iterator is to convert a value assignment operation into an operation that inserts the corresponding value into the container.The algorithm library imposes restrictions on all operations on the container: Never modify the container size (no insert or delete ). With the plug-in iterator, the algorithm library can insert new elements to the container

# Include # include # include using namespace STD; int iarray [5] = {1, 2, 3, 4, 5 }; void display (list & A, const char * s) {cout (cout, ""); cout ilist; copy (iarray, iarray + 5, front_inserter (ilist); display (ilist, "Before find and copy"

There are three types of iterators in C + +, namely Insert iterators (Inserter), reverse iterators (reverse_iterator), and Flow iterators. Here (vs2003 for example) introduces the insertion iterator, which is the Std::inserter_iterator,std::back_inserter_iterator,std::front_inserter_iterator three classes, respectively, The corresponding iterator adapter should be Std::inserter,std::back_inserter,std::front

"));Std::copy (Iodat.begin (), Iodat.end (), Map_back_inserter (M_version_map)); This sentence is not compiled butStd::copy (Iodat.begin (), Iodat.end (), Std::back_inserter (M_version_map)); Has entered the high man instruction, the following this sentence actually also can achieve the effect, has adopted the Std::inseter the iterative device Std::copy (Iodat.begin (), Iodat.end (), Std::inserter (M_version_map,m_version_map.begin ())); After the exp

greater int Main () { setint> S1; setint,greaterint> > s2; for (int i = 1;i { S1.insert (i); S2.insert (i); } if (S1 = = s2) cout Else cout } Split line here-------------------------------------------------------------------------------------- Several operations of Set Set_union (A.begin (), A.end (), B.begin (), B.end (), Inserter (C,c.begin ())); cout print (c); C.clear (); Set_intersection (A.begin

results at the container backend, surprisingly, inserter allows you to force algorithms to insert their results to any location in the container: Vector No matter whether you use back_inserter, front_inserter, or inserter, each insert to the destination interval completes only one object. Clause 5 explains that this may be expensive for continuous memory containers (vector, string, and deque), but clause

body.Cases:struct INFO{String name;Float score;Overloaded "BOOL operator {Press score to arrange from large to smallReturn a.score}}Set......SetSet_intersection (S.begin (), S.end (), S2.begin (), S2.end (), Inserter (Si, Si.begin ())); //IntersectionSet_union (S.begin (), S.end (), S2.begin (), S2.end (), Inserter (Su, Su.begin ())); //and setSet_difference (S.begin (), S.end (), S2.begin (), S2.end (),

information related to STL For vector and string, the iterator is sometimes a pointer, So if you make an error using the iterator, the compiler diagnostic information may mention the pointer type. For example, if your source code involves vector When it comes to messages of listener, front_insert_iterator, or insert_iterator, it often means that you have mistakenly called back_inserter, front_inserter, or inserter. (back_inserter returns objects of

set and the difference between the second and firstcombine B and use the above tips to quickly ac! Append Code#include #include#includeSet>using namespacestd;intMain () {intt,j; while(cin>>t) {Setint>A; Setint>B; Setint>Tmp1,tmp2,tmp3; if(t!=0) {A.insert (t); while(cin>>tt!=0) A.insert (t); } while(cin>>tt!=0) B.insert (t); Set_difference (A.begin (), A.end (), B.begin (), B.end (), Inserter (TMP1, Tmp1.begin ())); Set_differe

Recently, a big customer in the commissioning of the time, has complained to me, our online debugging tools reveal has been error, error, or diamond flash back. After my detailed debugging, I can be very sure to tell you that this is the customer is not in accordance with the standard use caused.Here I put the correct use of reveal process, write to everyone.First step: Insert Reveal Inserter, click the icon, then come out a dialog box, as followsIf y

Set: After inserting automatically in order from small to large, if the structure of the need to overload Some of the operations of set are shown in code:#include #includeSet>using namespaceStd;typedefstructtagstudentinfo{intNID; stringStrName; BOOL operatorConst _a)Const//Ascending order { if(nid_a.nid)return true; if(NID = =_a.nid)returnStrname.compare (_a.strname) 0; return false; }}sinfo,*PsInfo;intMain () {Setsets; Sinfo Stuinfo; Stuinfo.nid=Ten; Stuinfo.strname="test1"; Sets.ins

#include #include #include #include using namespace Std; Int main () { Set set set X.insert (1); X.insert (2); A.insert (5); A.insert (6); A.insert (7); B.insert (4); B.insert (6); B.insert (8); Set for (Ip=a.begin (); Ip!=a.end (); ip++) { cout }cout for (Ip=b.begin (); Ip!=b.end (); ip++) { cout } cout //target collection x where to insert X.begin () from the head of x insert Set_union (A.begin (), A.end (), B.begin (), B.end (), Inserter