Using Balloon Evaluation

See Also 

The balloon expression evaluator instantly shows you the current value of the expression at which your cursor is pointing in the Source Editor. If the expression is active in the current context, the value is displayed in a tooltip.

In cases where a program includes different variables with the same name, the Source Editor displays the value based on the current context, and not on the instance of the variable in the source code.

See also
C and C++ Variables and Expressions in the IDE
C and C++ Variables Window

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