Question

I have the following template declaration:

template <typename T>
   void IterTable(int&                       rIdx,
                  std::vector<double>&       rVarVector,
                  const std::vector<T>&      aTable,
                  const T                    aValue,
                  T              aLowerBound = -(std::numeric_limits<T>::max()), //illegal token on right side of '::' shows here
                  bool                       aLeftOpen = true) const;

Which throws the illegal token error as noted, on the line with “-(std::numeric_limits::max())”. I got this code from some old linux source that I’m trying to compile on Windows. Any idea what the issue is?

Edit: It also fails using min(), and the compiler output is:

Error   92  error C2589: '::' : illegal token on right side of '::' c:\projects\r&d\prepaydll\include\cfcdefault.h  216 PrepayDLL

Error   93  error C2059: syntax error : '::'    c:\projects\r&d\prepaydll\include\cfcdefault.h  216 PrepayDLL

Line 216, is the line previously mentioned.

Answer 1

My guess is that max has been made a macro. This happens at some point inside windows.h.

Define NOMINMAX prior to including to stop windows.h from doing that.

EDIT:

I’m still confident this is your problem. (Not including <limits> would result in a different error). Place #undef max and #undef min just before the function and try again. If that fixes it, I was correct, and your NOMINMAX isn’t being defined properly. (Add it as a project setting.)

You can also prevent macro expansion by: (std::numeric_limits<T>::max)().

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On a side note, why not do std::numeric_limits<T>::min() instead of negating the max?