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A Variable is a mutable memory cell that holds a value. More...
Public Member Functions | |
| virtual const Value & | GetValue () const =0 |
| Return the current value. More... | |
| virtual void | SetValue (Value &&value)=0 |
| Mutate the variable to have the new value. More... | |
| virtual PcpMapExpression | GetExpression () const =0 |
| Return an expression representing the value of this variable. More... | |
A Variable is a mutable memory cell that holds a value.
Changing a variable's value invalidates any expressions using that variable.
Definition at line 95 of file mapExpression.h.
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pure virtual |
Return an expression representing the value of this variable.
This lets you use the variable as a sub-term in other expressions.
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pure virtual |
Return the current value.
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pure virtual |
Mutate the variable to have the new value.
This will also invalidate dependant expressions.
1.8.5 
