Re: are scope guards (scope(exit, success, failure)) zero-cost abstractions?

On Thursday, 8 February 2018 at 11:23:43 UTC, Daniel Kozak wrote: I mean scope(success), for scope(exit) there is no speed penalty On Thu, Feb 8, 2018 at 12:03 PM, Daniel Kozak wrote: Yes, it add, but is almost zero On Thu, Feb 8, 2018 at 12:00 PM, Timothee Cour via

Re: are scope guards (scope(exit, success, failure)) zero-cost abstractions?

On Thursday, 8 February 2018 at 10:44:37 UTC, Mike Parker wrote: On Thursday, 8 February 2018 at 10:09:12 UTC, Timothee Cour wrote: I'm curious whether scope guards add any cost over the naive way, eg: ``` void fun(){ ... scope(success) {bar;} ... } ``` vs: ``` void fun(){ ...

Re: are scope guards (scope(exit, success, failure)) zero-cost abstractions?

Yes, it add, but is almost zero On Thu, Feb 8, 2018 at 12:00 PM, Timothee Cour via Digitalmars-d-learn < digitalmars-d-learn@puremagic.com> wrote: > I know that, my question is whether it adds any runtime overhead over > naive way (which is to call the "bar" finalizer before each return >

Re: are scope guards (scope(exit, success, failure)) zero-cost abstractions?

I mean scope(success), for scope(exit) there is no speed penalty On Thu, Feb 8, 2018 at 12:03 PM, Daniel Kozak wrote: > Yes, it add, but is almost zero > > On Thu, Feb 8, 2018 at 12:00 PM, Timothee Cour via Digitalmars-d-learn < > digitalmars-d-learn@puremagic.com> wrote: >

Re: are scope guards (scope(exit, success, failure)) zero-cost abstractions?

I know that, my question is whether it adds any runtime overhead over naive way (which is to call the "bar" finalizer before each return statement) in the case where no exception is thrown On Thu, Feb 8, 2018 at 2:44 AM, Mike Parker via Digitalmars-d-learn

Re: are scope guards (scope(exit, success, failure)) zero-cost abstractions?

On Thursday, 8 February 2018 at 10:09:12 UTC, Timothee Cour wrote: I'm curious whether scope guards add any cost over the naive way, eg: ``` void fun(){ ... scope(success) {bar;} ... } ``` vs: ``` void fun(){ ... if(foo1){ bar; // add this before each return return; }

Re: are scope guards (scope(exit, success, failure)) zero-cost abstractions?

likewise, will scope(exit) add any overhead over naive code in the case where no exception is thrown? ``` void fun(){ ... scope(success) {bar;} ... } vs void fun(){ ... if(foo1){ bar; // add this before each return return; } ... bar; return; } ``` On Thu, Feb 8, 2018

are scope guards (scope(exit, success, failure)) zero-cost abstractions?

I'm curious whether scope guards add any cost over the naive way, eg: ``` void fun(){ ... scope(success) {bar;} ... } ``` vs: ``` void fun(){ ... if(foo1){ bar; // add this before each return return; } ... bar; return; } ``` For scope(success) and scope(failure), the