Algorithm for executing function calls on each element of a sequence by a generic algorithm (ii)

1, For_each (Initerbegin, Initerend, Ufunc): Invokes each element of the sequence in a function object Ufunc

For example, the entire element of the output sequence can be written like this:

std::vector<int> c;c.reserve ()//Add element to C  for (int 0 ten; i++) {    c.push_back (i);} Output c all elements Std::for_each (C.begin (), C.end (), [] (int  element) {    std::cout<< element<<",";});
Print Result: 0,1,2,3,4,5,6,7,8,9

2, transform (Inputiterator first1, Inputiterator last1, outputiterator result, unaryoperation op): Performs unary operation op for each element of the sequence, The result is written in another sequence

For example, by multiplying the elements in C1 by 10 and putting them in C2, you can write:

std::vector<int>C1; Std::vector<int>C2; C2.resize (Ten);//This must be there, specifically refer to clause 30 of the effective STL: Ensure that the target range is large enough//adding elements to C1     for(inti =0; I <Ten; i++) {c1.push_back (i); }    //multiply each element in the C1 by 10 and deposit it in C2Std::transform (C1.begin (), C1.end (), C2.begin (), [] (intElement) {        returnElement *Ten;    }); //elements in the output C2     for(Autovar: C2) {Std::cout<<var<<","; }
Print Result: 0,10,20,30,40,50,60,70,80,90

3, transform (InputIterator1 first1, InputIterator1 last1,inputiterator2 first2, Outputiterator result,binaryoperation BINARY_OP): Performs a two-binary_op operation on each pair of elements in the two sequence, and the result is written in another sequence

For example, the sum of the corresponding elements in the above c1,c2 is deposited into the C3, which can be written as follows:

std::vector<int>C1; Std::vector<int>C2; Std::vector<int>C3; C2.resize (Ten);//This must be there, specifically refer to clause 30 of the effective STL: Ensure that the target range is large enoughC3.resize (Ten); //adding elements to C1     for(inti =0; I <Ten; i++) {c1.push_back (i); }    //multiply each element in the C1 by 10 and deposit it in C2Std::transform (C1.begin (), C1.end (), C2.begin (), [] (intElement) {        returnElement *Ten;    }); //each element in the C1, C2, and stored in the C3Std::transform (C1.begin (), C1.end (), C2.begin (), C3.begin (), [] (intElement1,intElement2) {        returnElement1 +Element2;    });  for(Autovar: C3) {Std::cout<<var<<","; }    //Print Result: 0,11,22,33,44,55,66,77,88,99

Algorithm for executing function calls on each element of a sequence by a generic algorithm (ii)