411 REFERENCE · Wikibooks
C++ Language/Variables/DefineAtSameTimeAsType
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Programmers usually define a class (class CRType {...};) separately from using that class' name in an object's definition (a subsequent CRType oObject; statement).
However, it is possible to combine these into a single codeline (class CRType {...} oObject;).
Additional information about defining a variable at the same time as a type