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showing all angle brackets

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Jidong Xiao
2023-09-25 23:51:18 -04:00
parent f7d7da368f
commit d558312b1d
1 changed files with 8 additions and 8 deletions
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lectures/08_vector_implementation/README.md
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@@ -51,10 +51,10 @@ template <class T> void Vec<T>::create(...
## 8.3 Syntax and Compilation ## 8.3 Syntax and Compilation
- Templated classes and templated member functions are not created/compiled/instantiated until they are - Templated classes and templated member functions are not created/compiled/instantiated until they are
needed. Compilation of the class declaration is triggered by a line of the form: Vec<int> v1; with int needed. Compilation of the class declaration is triggered by a line of the form: Vec&lt;int&gt; v1; with int
replacing T. This also compiles the default constructor for Vec<int> because it is used here. Other member replacing T. This also compiles the default constructor for Vec&lt;int&gt; because it is used here. Other member
functions are not compiled unless they are used. functions are not compiled unless they are used.
- When a different type is used with Vec, for example in the declaration: Vec<double> z; the template class - When a different type is used with Vec, for example in the declaration: Vec&lt;double&gt; z; the template class
declaration is compiled again, this time with double replacing T instead of int. Again, however, only the declaration is compiled again, this time with double replacing T instead of int. Again, however, only the
member functions used are compiled. member functions used are compiled.
- This is very different from ordinary classes, which are usually compiled separately and all functions are compiled - This is very different from ordinary classes, which are usually compiled separately and all functions are compiled
@@ -69,7 +69,7 @@ about functions being “multiply defined”. Some of you have already seen thes
## 8.4 Member Variables ## 8.4 Member Variables
Now, looking inside the Vec<T> class at the member variables: Now, looking inside the Vec&lt;T&gt; class at the member variables:
- m_data is a pointer to the start of the array (after it has been allocated). Recall the close relationship between - m_data is a pointer to the start of the array (after it has been allocated). Recall the close relationship between
pointers and arrays. pointers and arrays.
- m_size indicates the number of locations currently in use in the vector. This is exactly what the size() - m_size indicates the number of locations currently in use in the vector. This is exactly what the size()
@@ -81,13 +81,13 @@ m alloc.
## 8.5 Typedefs ## 8.5 Typedefs
- Several types are created through typedef statements in the first public area of Vec. Once created the names - Several types are created through typedef statements in the first public area of Vec. Once created the names
are used as ordinary type names. For example Vec<int>::size type is the return type of the size() function, are used as ordinary type names. For example Vec&lt;int&gt;::size type is the return type of the size() function,
defined here as an unsigned int. defined here as an unsigned int.
## 8.6 operator[] ## 8.6 operator[]
Access to the individual locations of a Vec is provided through operator[]. Syntactically, use of this operator Access to the individual locations of a Vec is provided through operator[]. Syntactically, use of this operator
is translated by the compiler into a call to a function called operator[]. For example, if v is a Vec<int>, is translated by the compiler into a call to a function called operator[]. For example, if v is a Vec&lt;int&gt;,
then: then:
```cpp ```cpp
v[i] = 5; v[i] = 5;
@@ -119,9 +119,9 @@ want to create a copy of the entire array! Let’s look at this more closely...
## 8.8 Exercise ## 8.8 Exercise
Suppose we used the default version of the assignment operator and copy constructor in our Vec<T> class. What Suppose we used the default version of the assignment operator and copy constructor in our Vec&lt;T&gt; class. What
would be the output of the following program? Assume all of the operations except the copy constructor behave as would be the output of the following program? Assume all of the operations except the copy constructor behave as
they would with a std::vector<double>. they would with a std::vector&lt;double&gt;.
```cpp ```cpp
Vec<double> v(4, 0.0); Vec<double> v(4, 0.0);
v[0] = 13.1; v[2] = 3.14; v[0] = 13.1; v[2] = 3.14;