Update README.md

helensgit · Mar 20, 2019 · e375c61 · e375c61
1 parent 57f55ee
commit e375c61
Showing 1 changed file with 24 additions and 15 deletions.
diff --git a/ch16/README.md b/ch16/README.md
@@ -455,27 +455,36 @@ f(42); f(p); f(ci); f(p2);
 ```
 > Answer:
 ```cpp
-g(42);  //type: int(rvalue) call template 3  T: int          instantiation: void g(int)
-g(p);   //type: int *       call template 4  T: int          instantiation: void g(int *)
-g(ci);  //type: const int   call template 3  T: const int    instantiation: void g(const int)
-g(p2);  //type: const int * call template 4  T: const int    instantiation: void g(const int *)
-f(42);  //type: int(rvalue) call template 1  T: int          instantiation: void f(int)
-f(p);   //type: int *       call template 1  T: int *        instantiation: void f(int *)
-# f(int *) is an exact match for p(int *) while f(const int *) has an conversion from int * to const int *.
-f(ci);  //type: const int   call template 1  T: const int    instantiation: void f(const int)
-f(p2);  //type: const int * call template 2  T：int          instantiation: void f(const int *)
+g(42);  // type: int(rvalue) call template 3  T: int          instantiation: void g(int)
+g(p);   // type: int *       call template 4  T: int          instantiation: void g(int *)
+g(ci);  // type: const int   call template 3  T: const int    instantiation: void g(const int)
+g(p2);  // type: const int * call template 4  T: const int    instantiation: void g(const int *)
+f(42);  // type: int(rvalue) call template 1  T: int          instantiation: void f(int)
+f(p);   // type: int *       call template 1  T: int *        instantiation: void f(int *)
+// f(int *) is an exact match for p(int *) while f(const int *) has an conversion from int * to const int *.
+f(ci);  // type: const int   call template 1  T: const int    instantiation: void f(const int)
+f(p2);  // type: const int * call template 2  T：int          instantiation: void f(const int *)
 ```
 
-##  Exercise 16.51
+## Exercise 16.50
+> Define the functions from the previous exercise so that they print an identifying message. Run the code from that exercise. If the calls behave differently from what you expected, make sure you understand why.
+[overload template](ex16_50_overload_template.cpp)
+
+## Exercise 16.51
 
 > Determine what sizeof...(Args) and sizeof...(rest) return for each call to foo in this section.
 ```cpp
 template <typename T, typename ... Args>
 void foo(const T & t, const Args & ... rest);
 int i = 0; double d = 3.14; string s = "how";
-foo(i, s, 42, d);  # input in Args: string, int(rvalue), double  sizeof...(Args): 3  sizeof...(rest): 3
-foo(s, 42, "hi");  # input in Args: int(rvalue), const char[3]   sizeof...(Args): 2  sizeof...(rest): 2
-foo(d, s);         # input in Args: string                       sizeof...(Args): 1  sizeof...(rest): 1
-foo("hi");         # input in Args: None                         sizeof...(Args): 0  sizeof...(rest): 0
-foo(i, s, s, d);   # input in Args: string, string, double       sizeof...(Args): 3  sizeof...(rest): 3
+foo(i, s, 42, d);  // input in Args: string, int(rvalue), double  sizeof...(Args): 3  sizeof...(rest): 3
+foo(s, 42, "hi");  // input in Args: int(rvalue), const char[3]   sizeof...(Args): 2  sizeof...(rest): 2
+foo(d, s);         // input in Args: string                       sizeof...(Args): 1  sizeof...(rest): 1
+foo("hi");         // input in Args: None                         sizeof...(Args): 0  sizeof...(rest): 0
+foo(i, s, s, d);   // input in Args: string, string, double       sizeof...(Args): 3  sizeof...(rest): 3
 ```
+
+# Exercise 16.52
+> Write a program to check your answer to the previous question.
+[variadic template](ex16_52_variadic_template.cpp)
+