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POC++ How to Sort Vector making use of Template
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2012-11-16T08:34:39.127
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C++ How to Sort Vector making use of Template Hi Guys, thanks for looking at my question. I got a Templates.h file that goes this way.. <pre><code>/* Template Less Than */ template<typename T> bool lessThan(T a,T b) { return a<b; } /* Template greater Than */ template<typename T> bool greaterThan(T a,T b) { return a>b; } /* Template Equals */ template<typename T> bool equals(T a,T b) { return a==b; } </code></pre> Then i got this class <pre><code>Map2D </code></pre> About Map2D.. <pre><code>class Map2D { protected: int x; int y; public: Map2D(); Map2D(int,int); int getX(); int getY(); }; </code></pre> At my main.cpp i got a vector class of Map2D <pre><code>vector<Map2D> map2d; </code></pre> So now i need to sort it by X Ascending.. how do i make use of the template file to do a sort on the vector of it X Ascending.. Consider i will need overload another for DESCENDING later.. Normally i will use <pre><code>sort(map2d.begin(),map2d.end(),sortByX); </code></pre> and sortByX will be a struct with overload by it () operator. But the question now is since i got a template that is lesser than and greater than.. how can i make use of it to sort X by ascending and then another X by descending with the template generic function of Templates.H . Updates: I think i need to overload the class Map2D operator > , < and == but my question is how do i overload it with the help of MyTemplates.h function such as lesserThan , greaterThan, equals Thanks.
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<c++><templates><sorting><vector>
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C++ How to Sort Vector making use of Template
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