Disabling / enabling a default parameter

[keanedawg]

I just don't get it. If I declare it in the .cpp, it works. If I remove the default parameter (changing it to just "bool sold"), it works. But this will not compile in the .h.

 Queue<string> analyzeQueue(Queue<Stock> holding, bool sold = false);

  Error: cannot overload functions distinguished by return type alone

This is the only analyzeQueue function I have.

What is happening?

[Jaybob66]

you only need the default value on the declaration in the header file.

file.h
Queue<string> analyzeQueue(Queue<Stock> holding, bool sold = false);

file.cpp

Queue<string> analyzeQueue(Queue<Stock> holding, bool sold)
{
   // blah
}

[keanedawg]

I tried that. No luck.

.h
Queue<string> analyzeQueue(Queue<Stock> holding, bool sold = false);

.cpp

Queue<string> analyzeQueue(Queue<Stock> holding, bool sold)
{
   Queue<string> analyzed;

   //copy by-value, shouldn't affect the source queue
   while (!holding.empty())
   {
      stringstream purchaseMessage;
      if (sold)
         purchaseMessage << "Sold ";
      else
         purchaseMessage << "Bought ";

      purchaseMessage << holding.front().numShares << " shares ";
      purchaseMessage << "at " << holding.front().price;

      if (sold)
         purchaseMessage << " for a profit of " << holding.front().profit;

      analyzed.push(purchaseMessage.str());
      holding.pop();
   }

   return analyzed;
}

[Jaybob66]

overloaded can only mean one thing, there is more than one of them and they have the same parameter types.

check the header files that you include.
if its a class method check the base class.

check the rest of the output from the compiler, almost all compilers show you where they found the declarations.

1>  test.cpp
1>c:\dev\my_projects\consoleapplication1\pool.cpp(5): error C2556: 'float analyzeQueue(int,bool)' : overloaded function differs only by return type from 'int analyzeQueue(int,bool)'
1>          c:\dev\my_projects\consoleapplication1\test.h(3) : see declaration of 'analyzeQueue'
1>c:\dev\my_projects\consoleapplication1\test.cpp(5): error C2371: 'analyzeQueue' : redefinition; different basic types
1>          c:\dev\my_projects\consoleapplication1\test.h(3) : see declaration of 'analyzeQueue'