index_id.cc.h

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// -*- C++ -*-
#ifndef __cxz_index_id_cc_h__
#define __cxz_index_id_cc_h__
 
#include "index_id.h"
 
namespace CNORXZ
{
 
    template <SizeT I>
    constexpr IndexId<I>::IndexId(PtrId id) :
    mId(id)
    {}
 
    template <SizeT I>
    constexpr const PtrId& IndexId<I>::id() const
    {
    return mId;
    }
 
    template <SizeT I>
    template <SizeT J>
    constexpr decltype(auto) IndexId<I>::operator==(const IndexId<J>& a) const
    {
    if constexpr(I != 0 or J != 0){
        if constexpr(I == J){
        CXZ_ASSERT(mId == a.id(),
               "got different index ids for equal static index label");
        return true;
        }
        else {
        CXZ_ASSERT(mId == a.id(),
               "got equal index ids for different static index label");
        return false;
        }
    }
    else {
        return mId == a.id();
    }
    }
 
    template <SizeT I>
    template <SizeT J>
    constexpr decltype(auto) IndexId<I>::operator!=(const IndexId<J>& a) const
    {
    if constexpr(I != 0 and J != 0){
        if constexpr(I == J){
        CXZ_ASSERT(mId == a.id(),
               "got different index ids for equal static index label");
        return false;
        }
        else {
        CXZ_ASSERT(mId == a.id(),
               "got equal index ids for different static index label");
        return true;
        }
    }
    else {
        return mId != a.id();
    }
    }
    
}
 
#endif