Interpretation of c ++ pointer-heavy application code

C ++ is an advanced C language version. Of course, it has all the functions of C language. To some extent, it also has many practical application functions. Today, we will introduce pointer operations and specific application methods of C ++ pointer overloading.

Example code of C ++ pointer overloading:

 
 

  
  
# Include "stdafx. h"
  
  
# Include <iostream>
  
  
# Include <string>
  
  
Template <typename T>
  
  
Inline T const & max (T const & a, T const & B)
  
  
{
  
  
Return a <B? B:;
  
  
}
  
  
// Evaluate the iterator of the two pointer values
  
  
Template <typename T>
  
  
Inline T const & max (T * const & a, T * const & B)
  
  
{
  
  
Return * a <* B? * B: *;
  
  
}
  
  
// Evaluate the referers of two strings
  
  
Inline char const * const & max (char const * const &,
Char const * const & B)
  
  
{
  
  
Return strcmp (a, B) <0? B:;
  
  
}
  
  
Int _ tmain (int argc, _ TCHAR * argv [])
  
  
{
  
  
// Compare the maximum values of two int values. The first max template is called.
  
  
Int a = 7;
  
  
Int B = 42;
  
  
Std: cout <"max (a, B) =>" <: max (a, B) <std: endl;
  
  
// Compare the maximum values of two strings. The first max template is called.
  
  
Std: string s = "hey ";
  
  
Std: string t = "you ";
  
  
Std: cout <"max (s, t) =>" <: max (s, t) <std: endl;
  
  
// Compare the maximum value of the two pointers. The second max template is called.
  
  
Int * p1 = &;
  
  
Int * p2 = & B;
  
  
Std: cout <"max (p1, p2) =>" <: max (p1, p2) <std: endl;
  
  
// Compare the maximum values of two c strings. The third non-template max function is called.
  
  
Char const * s1 = "David ";
  
  
Char const * s2 = "Nico ";
  
  
Std: cout <"max (s1, s2) =>" <: max (s1, s2) <std: endl;
  
  
Return 0;
  
  
}
 
 

• Analysis on Application Methods of C ++ object Replication
• Analysis of basic implementation methods of C ++ Using Interfaces
• Analysis of the similarities and differences between the left and right values of C ++
• C ++ template parameters
• C ++ template function reloads different comments

Note the following when reloading the above C ++ pointer code:

1): max (a, B) and max (s, t) call the same max template function. Because they satisfy the definition of the first template function, they only have different types.

2): max (p1, p2) calls are somewhat mysterious.

3): max (s1, s2) calls the third non-template max function. The second template function is not used to generate new instances.