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Top Forums Programming Size of Derived class, upon virtual base class inheritance Post 302866733 by Corona688 on Tuesday 22nd of October 2013 03:45:19 PM
Old 10-22-2013
Sorry, I was away last week, but that's exactly it.

Making it 'virtual' means the computer needs to store extra information in the class, since it doesn't know what functions to call it it from the type it's supposed to be alone.
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TAU_MAPPING_OBJECT(3)						  TAU Mapping API					     TAU_MAPPING_OBJECT(3)

NAME
TAU_MAPPING_OBJECT - Declares a mapping object SYNOPSIS
C/C++: TAU_MAPPING_OBJECT(FunctionInfo FuncIdVar); DESCRIPTION
To create storage for an identifier associated with a higher level statement that is mapped using TAU_MAPPING, we use the TAU_MAPPING_OBJECT macro. For example, in the TAU_MAPPING example, the array expressions are created into objects of a class ExpressionKernel, and each statement is an object that is an instance of this class. To embed the identity of the statement we store the mapping object in a data field in this class. This is shown below: EXAMPLE
C/C++ : template<class LHS,class Op,class RHS,class EvalTag> class ExpressionKernel : public Pooma::Iterate_t { public: typedef ExpressionKernel<LHS,Op,RHS,EvalTag> This_t; // // Construct from an Expr. // Build the kernel that will evaluate the expression on the // given domain. // Acquire locks on the data referred to by the expression. // ExpressionKernel(const LHS&,const Op&,const RHS&, Pooma::Scheduler_t&); virtual ~ExpressionKernel(); // Do the loop. virtual void run(); private: // The expression we will evaluate. LHS lhs_m; Op op_m; RHS rhs_m; TAU_MAPPING_OBJECT(TauMapFI) }; SEE ALSO
TAU_MAPPING_CREATE(3), TAU_MAPPING_LINK(3), TAU_MAPPING_PROFILE(3) 08/31/2005 TAU_MAPPING_OBJECT(3)
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