// bsltf_nonequalcomparabletesttype.h -*-C++-*- #ifndef INCLUDED_BSLTF_NONEQUALCOMPARABLETESTTYPE #define INCLUDED_BSLTF_NONEQUALCOMPARABLETESTTYPE #include <bsls_ident.h> BSLS_IDENT("$Id: $") //@PURPOSE: Provide an attribute class that is not equal comparable. // //@CLASSES: // bsltf::NonEqualComparableTestType: non-equal-comparable class // //@SEE_ALSO: bsltf_templatetestfacility // //@DESCRIPTION: This component provides a single, unconstrained // (value-semantic) attribute class, 'NonEqualComparableTestType', that does // not provide equality-comparison operators. This is particularly valuable // when test containers that should work with non-equal-comparable types. // ///Attributes ///---------- //.. // Name Type Default // ------------------ ----------- ------- // data int 0 //.. //: o 'data': representation of the class value // ///Usage ///----- // This section illustrates intended use of this component. // ///Example 1: Demonstrating the Type Cannot be Equality Compared ///- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - // Suppose we wanted to show 'NonEqualComparableTestType' can't be equal // compared. // // First, we create two 'NonEqualComparableTestType' objects, 'X' and 'Y': //.. // NonEqualComparableTestType X(1); // NonEqualComparableTestType Y(2); //.. // Now, we show that equal comparing 'X' and 'Y' will not compile: //.. // assert(X != Y); // This will not compile //.. #include <bslscm_version.h> namespace BloombergLP { namespace bsltf { // ================================ // class NonEqualComparableTestType // ================================ class NonEqualComparableTestType { // This unconstrained (value-semantic) attribute class does not // provide equality-comparison operators. // DATA int d_data; // integer class value public: // CREATORS NonEqualComparableTestType(); // Create a 'NonEqualComparableTestType' object having the (default) // attribute values: //.. // data() == 0 //.. explicit NonEqualComparableTestType(int data); // Create a 'NonEqualComparableTestType' object having the specified // 'data' attribute value. // NonEqualComparableTestType( // const NonEqualComparableTestType& original) = default; // Create a 'NonEqualComparableTestType' object having the same value // as the specified 'original' object. ~NonEqualComparableTestType(); // Destroy this object. // MANIPULATORS // NonEqualComparableTestType& operator=( // const NonEqualComparableTestType& rhs) = default; // Assign to this object the value of the specified 'rhs' object, and // return a reference providing modifiable access to this object. void setData(int value); // Set the 'data' attribute of this object to the specified 'value'. // ACCESSORS int data() const; // Return the value of the 'data' attribute of this object. }; // ============================================================================ // INLINE AND TEMPLATE FUNCTION IMPLEMENTATIONS // ============================================================================ // -------------------------------- // class NonEqualComparableTestType // -------------------------------- // CREATORS inline NonEqualComparableTestType::NonEqualComparableTestType() : d_data(0) { } inline NonEqualComparableTestType::NonEqualComparableTestType(int data) : d_data(data) { } inline NonEqualComparableTestType::~NonEqualComparableTestType() { d_data = ~d_data & 0xf0f0f0f0; } // MANIPULATORS inline void NonEqualComparableTestType::setData(int value) { d_data = value; } // ACCESSORS inline int NonEqualComparableTestType::data() const { return d_data; } } // close package namespace } // close enterprise namespace #endif // ---------------------------------------------------------------------------- // Copyright 2013 Bloomberg Finance L.P. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. // ----------------------------- END-OF-FILE ----------------------------------