101 lines
2.5 KiB
C++
101 lines
2.5 KiB
C++
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#include <pv/convert.h>
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#include <algorithm>
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#include <iterator>
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#include <sstream>
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namespace epics { namespace pvData {
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// PVXXX object comparison
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bool operator==(PVField& left, PVField& right)
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{
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return getConvert()->equals(left,right);
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}
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// Introspection object comparision
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/** Field equality conditions:
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* 1) same instance
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* 2) same type (field and scalar/element), same name, same subfields (if any)
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*/
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bool operator==(const Field& a, const Field& b)
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{
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if(&a==&b)
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return true;
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if(a.getType()!=b.getType())
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return false;
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switch(a.getType()) {
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case scalar: {
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const Scalar &A=static_cast<const Scalar&>(a);
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const Scalar &B=static_cast<const Scalar&>(b);
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return A==B;
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}
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case scalarArray: {
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const ScalarArray &A=static_cast<const ScalarArray&>(a);
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const ScalarArray &B=static_cast<const ScalarArray&>(b);
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return A==B;
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}
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case structure: {
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const Structure &A=static_cast<const Structure&>(a);
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const Structure &B=static_cast<const Structure&>(b);
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return A==B;
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}
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case structureArray: {
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const StructureArray &A=static_cast<const StructureArray&>(a);
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const StructureArray &B=static_cast<const StructureArray&>(b);
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return A==B;
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}
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default:
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throw std::logic_error("Invalid Field type in comparision");
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}
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}
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bool operator==(const Scalar& a, const Scalar& b)
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{
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if(&a==&b)
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return true;
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return a.getScalarType()==b.getScalarType();
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}
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bool operator==(const ScalarArray& a, const ScalarArray& b)
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{
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if(&a==&b)
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return true;
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return a.getElementType()==b.getElementType();
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}
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bool operator==(const Structure& a, const Structure& b)
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{
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if(&a==&b)
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return true;
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if (a.getID()!=b.getID())
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return false;
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size_t nflds=a.getNumberFields();
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if (b.getNumberFields()!=nflds)
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return false;
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// std::equals does not work, since FieldConstPtrArray is an array of shared_pointers
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FieldConstPtrArray af = a.getFields();
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FieldConstPtrArray bf = b.getFields();
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for (size_t i = 0; i < nflds; i++)
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if (*(af[i].get()) != *(bf[i].get()))
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return false;
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StringArray an = a.getFieldNames();
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StringArray bn = b.getFieldNames();
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return std::equal( an.begin(), an.end(), bn.begin() );
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}
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bool operator==(const StructureArray& a, const StructureArray& b)
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{
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return *(a.getStructure().get())==*(b.getStructure().get());
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}
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namespace nconvert {
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} // namespace nconvert
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}} // namespace epics::pvData
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