c++ - new in Objective-C in init - how to handle std::bad_alloc? -

i need wrap c++ object inside objective-c class - did putting c++ objects inside @implementation in .mm file this:

myobjcclass.h:

@interface myobjcclass : nsobject @end 

myobjcclass.mm:

@implementation myobjcclass {     mycppclass member; } @end 

sadly had give since code used in project targets 32-bit architectures , feature not supported. did forward struct declaration, struct defined in .mm file , wraps c++ object:

myobjcclass.h:

struct myobjcclassprivate;  @interface myobjcclass : nsobject {     myobjcclassprivate* memberprivate; }  -(void)dealloc; -(id)init; @end 

myobjcclass.mm:

struct myobjcclassprivate {     mycppclass member; }  @implementation myobjcclass  -(void)dealloc {     delete memberprivate;     memberprivate = nullptr; }  -(id)init {     if (self = [super init])     {         memberprivate = new myobjcclassprivate; // happens if new throws std::bad_alloc ?     }     return self; }  @end 

the question - should care if allocation new fails? consequences (apart exception being thrown?) - need additional cleanup ojbective-c class instance?

i dont want put c++ stuff in header since class used plain objective-c code, fails compile.