Specifies that an instance of the type can be default constructed.
[edit] RequirementsThe type T satisfies DefaultConstructible if all following statements and expressions are valid and have their specified effects:
For objects of non-aggregate class type, a public default constructor must be defined (either user-defined or implicitly defined) to satisfy DefaultConstructible.
Non-const objects of non-class object type are always DefaultConstructible.
Const non-class types are not DefaultConstructible.
Const aggregate types are not DefaultConstructible if any of their members is an object of non-class type.
Non-object types (function types, reference types, and the (possibly cv-qualified) type void) as well as the const non-object types are never DefaultConstructible.
[edit] Defect reportsThe following behavior-changing defect reports were applied retroactively to previously published C++ standards.
DR Applied to Behavior as published Correct behavior LWG 724 C++98 the requirements of DefaultConstructible were missing added LWG 2170 C++98 initialzing an object of a DefaultConstructible type with anRetroSearch is an open source project built by @garambo | Open a GitHub Issue
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