Struct constructors!

http://www.digitalmars.com/d/1.0/changelog.html
http://ftp.digitalmars.com/dmd.1.035.zip

http://www.digitalmars.com/d/2.0/changelog.html
http://ftp.digitalmars.com/dmd.2.019.zip

Reply to Walter,

> Struct constructors!
> 
> http://www.digitalmars.com/d/1.0/changelog.html
> http://ftp.digitalmars.com/dmd.1.035.zip
> http://www.digitalmars.com/d/2.0/changelog.html
> http://ftp.digitalmars.com/dmd.2.019.zip

bug soup!!!! :-)

Walter Bright wrote:
> Struct constructors!
> 
> http://www.digitalmars.com/d/1.0/changelog.html http://ftp.digitalmars.com/dmd.1.035.zip

Nice release, thanks! One nit: running "dmd" still says "Digital Mars D Compiler v1.034".

-- 
E-mail address: matti.niemenmaa+news, domain is iki (DOT) fi

Matti Niemenmaa wrote:
> Nice release, thanks! One nit: running "dmd" still says "Digital Mars D Compiler
> v1.034".

Fixed!

Great update once again, thanks!

> Special member functions _ctor, _dtor, etc., now have two leading _ in order to not conflict with the user identifier space.

Ow, just rename this/~this to ctor/dtor and get it over with! :O

L. 

Are opCalls deprecated now ? how do i call the ctor and how the opCall? a short example in the docs would have been nice.

nice release though. thanks for the bugfixing!

Walter Bright wrote:
> Struct constructors!
> 
> http://www.digitalmars.com/d/1.0/changelog.html
> http://ftp.digitalmars.com/dmd.1.035.zip
> 
> http://www.digitalmars.com/d/2.0/changelog.html
> http://ftp.digitalmars.com/dmd.2.019.zip

And why is it that there is no default ctor allowed for structs ?

struct S{this(){}} //constructor main.S.this default constructor not allowed for structs

Walter Bright wrote:
> Struct constructors!
> 
> http://www.digitalmars.com/d/1.0/changelog.html
> http://ftp.digitalmars.com/dmd.1.035.zip
> 
> http://www.digitalmars.com/d/2.0/changelog.html
> http://ftp.digitalmars.com/dmd.2.019.zip

To construct an object of struct S:

auto s = S(arguments);

Extrawurst wrote:
> Are opCalls deprecated now ? how do i call the ctor and how the opCall? a short example in the docs would have been nice.

yeah i figured, but if i have an opCall with the exact same arguments its never called, isnt that ambiguous ? what happens to opcall anyway ? will it sooner or later fall out ?

Walter Bright wrote:
> To construct an object of struct S:
> 
> auto s = S(arguments);
> 
> Extrawurst wrote:
>> Are opCalls deprecated now ? how do i call the ctor and how the opCall? a short example in the docs would have been nice.

Extrawurst wrote:
> And why is it that there is no default ctor allowed for structs ?

Good question. Because:

1. Having a default ctor conflicts with the concept of a .init property.

2. Using .init for default construction guarantees it can never throw, which is a useful property in many generic programming circumstances

3. It guarantees it is pure.

4. Nearly every instance of default construction I've seen would initialize it just to what .init does in D.

5. It eliminates the need for a member initializer syntax.