EXTERN_FUNCTION_TEMPLATE.cpp

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// checking for extern function template extension
 
 
// include a file containing the definition of a template
// and an extern template directive referencing an explicit
// instantiation of the same template in extern_function_template_imp.o
 
#include "extern_function_template_imp.h"
 
// establish a dependency on extern_function_template_imp.o to make sure
// the extern_function_template_imp.cpp is compiled before this file
#ifndef _RWSTD_NO_extern_function_template_imp
 
// link with the object file below
// LDOPTS = extern_function_template_imp.o
 
#endif   // _RWSTD_NO_extern_function_template_imp
 
int main ()
{
    S<int> s;
 
    int res = 0;
 
    // verify that the call compiles and links
    res += foobar (s).t;
 
    // verify that the call resolves to the definition emitted
    // by the explicit instantiation in extern_function_template_imp.o
    // and not the one here
    return !(1 == res);
}