EXPLICIT_INSTANTIATION_BEFORE_DEFINITION.cpp

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// checking for instantiation before definition
 
 
#include "config.h"
 
#ifdef _RWSTD_NO_IMPLICIT_INCLUSION
   // tell "instantiation_before_definition.h" to #include its
   // implementation file, instantiation_before_definition.cc
#  define INCLUDE_CC_FILE
#endif   // _RWSTD_NO_IMPLICIT_INCLUSION
 
#ifdef _RWSTD_NO_EXTERN_FUNCTION_TEMPLATE
   // tell "instantiation_before_definition.h" to use explicit
   // function template specialization instead of the extern
   // template extension
#  define SPECIALIZE_FUNCTION_TEMPLATE
#endif   // _RWSTD_NO_EXTERN_FUNCTION_TEMPLATE
 
#define INSTANTIATE_TEMPLATE
#include "instantiation_before_definition.h"
 
// test exercises the ability to explicitly instantiate a template
// lexically before the definition of the template (exercises, for
// example, IBM VAC++ 7.0 bug #448:
// http://iwww.cvo.roguewave.com/bugzilla/show_bug.cgi?id=448)
 
int main ()
{
    InstantiatedBeforeDefined<int> ibd;
 
    return   ibd.defined_first (0)
           + ibd.instantiated_first (0)
           + instantiated_before_defined (0);
}