implicit_cast.h

   1 // Explicit requests for implicit type conversion
   2 // Copyright © 2009 The University of Chicago
   3 #ifndef IMPLICIT_CAST_H
   4 #define IMPLICIT_CAST_H
   5
   6 namespace linguistica {
   7         template<class T, class U> T implicit_cast(U x);
   8 }
   9
  10 /// Helper function: Convert CPrefix* or CSuffix* to CAffix*
  11 /// Reference: B. Stroustroup, "The C++ Programming Language"
  12 ///
  13 /// Usage:
  14 ///     CPrefix* prefix;
  15 ///     CSuffix* suffix;
  16 ///     /* ... */
  17 ///     CAffix* affix = analyzingSuffixes ?
  18 ///             implicit_cast<CAffix*>(suffix) :
  19 ///             implicit_cast<CAffix*>(prefix);
  20 template<class T, class U> T linguistica::implicit_cast(U x) { return x; }
  21
  22 #endif // IMPLICIT_CAST_H