Source of storage_linkage_aux3.cpp

Structures and functions

  1: //storage_linkage_aux3.cpp
  2: //Goes with storage_linkage_main3.cpp. Compile the two files
  3: //separately and link the object files to produce an executable.
  4: //The use of the keyword "static" applied to the definition of
  5: //the function SayHi() in the global namespace of this file
  6: //restricts the visibility of the function to this file.

  8: #include <iostream>
  9: using namespace std;

 11: static void SayHi()
 12: {
 13:     cout << "\nHi from the auxiliary file!";
 14: }

 16: void DisplayGreeting()
 17: {
 18:     SayHi();
 19:     cout << "\nHow the heck are you?";
 20: }

 22: /*
 23: Question:
 24: What will the effect be if the keyword static is removed
 25: from the definition of the function SayHi() and the function
 26: is instead placed in the anonymous namespace for this file?

 28: Answer:
 29: No effect. In fact, this is the recommended approach to use
 30: for limiting visiblity to a file, rather than using "static".
 31: */