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Subject: Re: [boost] [optional] memory use for optional refs and ptrs
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2010-10-06 14:22:58

Larry Evans wrote:
> A copy of the code posted here:
> followed by:
> struct C {
> int a;
> bool ta;
> double b;
> bool tb;
> double c;
> bool tc;
> std::string d;
> bool td;
> };
> int main(void)
> {
> std::cout<<"sizeof(A)="<<sizeof(A)<<"\n";
> std::cout<<"sizeof(B)="<<sizeof(B)<<"\n";
> std::cout<<"sizeof(C)="<<sizeof(C)<<"\n";
> return 0;
> }
> showed sizeof(B) = sizeof(C), justifying Sebastian's doubt.

If any of the types, other than bool, were smaller than int, I think you'll find some differences, but the answer does depend upon compiler options.

Rob Stewart robert.stewart_at_[hidden]
Software Engineer, Core Software using std::disclaimer;
Susquehanna International Group, LLP

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