Annex G (informative) Ill-formed, no diagnostic required [ifndr]

G.8 [class]: Classes [ifndr.class]

G.8.1[ifndr:class.base.init.delegate.itself]
Specified in: [class.base.init]

If a constructor delegates to itself directly or indirectly, the program is ill-formed, no diagnostic required
[Example 1: struct C { C( int ) { } // #1: non-delegating constructor C(): C(42) { } // #2: delegates to #1 C( char c ) : C(42.0) { } // #3: IFNDR due to recursion with #4 C( double d ) : C('a') { } // #4: IFNDR due to recursion with #3 }; — end example]