lextvar.hpp File Reference

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Detailed Description

Access global C++ variables from Lisp.

This file defines the operator&(LFunctionConstructor,T)

Definition in file lextvar.hpp.

#include "../genlisp/extvar.hpp"

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Functions
template<class Tt>
SReference	operator & (const LFunctionConstructor &, Tt &var)
	Lisp external variable expression constructor.

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Function Documentation

template<class Tt> class SReference operator & (  const LFunctionConstructor &  , Tt &  var )

Lisp external variable expression constructor. Operator to form a pair of SExpressionIndirectAccessor and SExpressionIndirect, to be used with LFunctionConstructor. The operator takes a C++ lvalue of either any integer, float, or SString or SReference type. The operator forms a dotted pair in which the car is a SExpressionIndirectAccessor object and the cdr is a SExpressionIndirect object which incapsulates the given lvalue. Being evaluated, such a pair returns the current value of the variable; being used as the first argument of SETF, it performs the appropriate assignment. Definition at line 42 of file lextvar.hpp.

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