Merge pull request jieniyimiao#4 from Mooophy/master

SYN

ch09/ex9_13.cpp

@@ -1,4 +1,4 @@
-//! @Alan
+//! @author @shbling @Alan
 //!
 //! Exercise 9.13:
 //! How would you initialize a vector<double> from a list<int>?
@@ -8,15 +8,27 @@
 #include <iostream>
 #include <string>
 #include <vector>
-#include <deque>
 #include <list>
 
+using std::list;using  std::vector;using std::cout;using std::endl;
 
 int main()
 {
-    std::list<int> ls(10,1);
-    std::vector<int> vi(10,2);
+    list<int> ilst(5, 4);
+    vector<int> ivc(5, 5);
+
+    //! from list<int>  to  vector<double>
+    vector<double> dvc (ilst.begin(),ilst.end());
+    for (auto i : ilst) cout << i;
+    cout << endl;
+    for (auto t : dvc)  cout << t;
+    cout << endl;
+
+    //! from vector<int>   to  vector<double>
+    vector<double> dvc2(ivc.begin(), ivc.end());
+    for (auto i : ivc)  cout << i;
+    cout << endl;
+    for (auto t : dvc2) cout << t;
 
-    std::vector<double> v(vi.begin(),   vi.end());
     return 0;
 }

ch09/ex9_15_16_17.cpp

@@ -23,11 +23,19 @@ bool is_equal(const std::vector<int> &v1, const std::vector<int> &v2);
 bool is_equal2(const std::vector<int> &v, const std::list<int> &l);
 int main()
 {
-    std::list<char*> l(10);
-    std::vector<std::string> v;
-    v.assign(l.cbegin(), l.cend());
+	std::vector<int> iv{ 10, 1 };
+	std::vector<int> iv2{ 10, 1 };
+	std::list<int> il{ 10, 2 };
+
+	if (is_equal(iv, iv2))//EX9.15
+		std::cout << "iv and iv2 are equal;" << std::endl;
+	else std::cout << "iv and iv2 are different;" << std::endl;
 
-    return 0;
+	if (is_equal2(iv, il))//EX9.16
+		std::cout << "iv and il are equal." << std::endl;
+	else std::cout << "iv and il are different." << std::endl;
+
+	return 0;
 }
 
 

ch09/ex9_26.cpp

@@ -1,72 +1,44 @@
-//! @Alan
+//!
+//! @author @huangjuncmj @Alan
+//! @date   19.11.2014
 //!
 //! Exercise 9.26:
 //! Using the following definition of ia, copy ia into a vector and into a list.
 //! Use the single-iterator form of erase to remove the elements with odd values from your
 //! list and the even values from your vector.
-//  note the subtle difference between list and vector.
 //!
 #include <iostream>
-#include <string>
 #include <vector>
-#include <deque>
 #include <list>
 
 
 int main()
 {
     int ia[] = { 0, 1, 1, 2, 3, 5, 8, 13, 21, 55, 89 };
 
-    //! cal the lenth of the array.
-    int size = sizeof(ia)/sizeof(int);
-
-    std::vector<int> v;
-    std::list<int> l;
-
-    // copy in to v and l
-    for (auto *p = ia; p != ia + size ; ++p)
+    //! init
+    std::vector<int> vec;
+    std::vector<int> lst;
+    for(auto i : ia)
     {
-        v.push_back(*p);
-        l.push_back(*p);
+        vec.push_back(i);
+        lst.push_back(i);
     }
 
-    // ease even value element from v
-    for (auto it = v.begin(); it != v.end(); ++it)
-    {
-        if((*it)%2 == 0)
-        {
-            v.erase(it);
-        }
-    }
-    //print content of v
-    for(auto it = v.begin(); it != v.end(); ++it)
-    {
-        std::cout << *it <<" ";
-    }
-
-    std::cout << "\n";
-
-
-    //ease odd value element from l
-    for(auto it = l.begin(); it != l.end(); ++it)
-    {
-        if((*it)%2 == 1)
-        {
-            l.erase(it);
-
-            //! @note without this statement it does not work
-            --it;
-        }
-    }
-    //print l
-    for (auto it = l.begin(); it != l.end(); ++it)
-    {
-        std::cout << *it << " ";
-    }
-
-
+    //! remove odd value
+    for(auto it = lst.begin();  it != lst.end();    )
+        if(*it & 0x1)       it = lst.erase(it);     else    ++it;
 
+    //! remove even value
+    for(auto it = vec.begin();  it != vec.end();    )
+        if(!(*it & 0x1))    it = vec.erase(it);     else    ++it;
 
+    //! print
+    std::cout << "list : ";
+    for(auto i : lst)   std::cout << i << " ";
+    std::cout << "\nvector : ";
+    for(auto i : vec)   std::cout << i << " ";
+    std::cout << std::endl;
 
     return 0;
 }