[Issue 953] Multiple C style declarations of same type cannot be in one statement

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=953

Vladimir Panteleev  changed:

   What|Removed |Added

 Status|REOPENED|RESOLVED
 Resolution|--- |WORKSFORME

--- Comment #8 from Vladimir Panteleev  ---
(In reply to Matti Niemenmaa from comment #0)
> int foo[2], bar[2];
> 
> The above fails with the error message "multiple declarations must have the
> same type, not int[2] and int[2]" which makes no sense. int[2] is the same
> type as int[2].

Fixed by https://github.com/dlang/dmd/pull/4021. Now it prints:

test.d(1): Deprecation: instead of C-style syntax, use D-style syntax 'int[2]
foo'
test.d(1): Deprecation: instead of C-style syntax, use D-style syntax 'int[2]
bar'

--

[Issue 953] Multiple C style declarations of same type cannot be in one statement

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=953

--- Comment #9 from Vladimir Panteleev  ---
*** Issue 12196 has been marked as a duplicate of this issue. ***

--

[Issue 953] Multiple C style declarations of same type cannot be in one statement

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=953

Andrei Alexandrescu  changed:

   What|Removed |Added

   Keywords||bootcamp
 CC||and...@erdani.com

--

[Issue 953] Multiple C style declarations of same type cannot be in one statement

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=953

Andrei Alexandrescu and...@erdani.com changed:

   What|Removed |Added

Version|D1  D2 |D2

--

[Issue 953] Multiple C style declarations of same type cannot be in one statement

[d-bugmail]

http://d.puremagic.com/issues/show_bug.cgi?id=953


bearophile_h...@eml.cc changed:

   What|Removed |Added

 CC||bearophile_h...@eml.cc


--- Comment #7 from bearophile_h...@eml.cc 2013-07-03 10:17:37 PDT ---
So this code has different meanings in C and D:

void main() {
int *a, b;
}


And to keep the D language simple this is disallowed:

int a[8], c[8];


Then what is this issue asking for?

In Issue 5807 I have suggested to disallow mixing C and D style of array in a
single declaration:

// array of 5 dynamic arrays of ints.
int[][5] c;
int[] c[5];
int c[5][];

Also because of some problems it causes with vector ops syntax:

void main() {
int[] a1 = [1, 2, 3];
int[] a2 = new int[3];
a2[] = a1[];   // OK
int[3] a3[] = a2[];// line 5, Error
}


Beside disallowing the mix of C and D syntaxes in a single declaration, another
thing that may be good to do is to perpetually deprecate the C syntax (and do
not turn it into an error).

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[Issue 953] Multiple C style declarations of same type cannot be in one statement

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Andrej Mitrovic andrej.mitrov...@gmail.com changed:

   What|Removed |Added

   Priority|P4  |P2
 CC||andrej.mitrov...@gmail.com
   Platform|x86 |All
Version|1.005   |D1  D2
 AssignedTo|bugzi...@digitalmars.com|nob...@puremagic.com
 OS/Version|Windows |All
   Severity|trivial |normal


--- Comment #4 from Andrej Mitrovic andrej.mitrov...@gmail.com 2013-01-20 
11:37:50 PST ---
This affects both D1 and D2.

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[Issue 953] Multiple C style declarations of same type cannot be in one statement

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--- Comment #5 from Andrej Mitrovic andrej.mitrov...@gmail.com 2013-01-20 
11:45:33 PST ---
This would be more simple to implement if we simply destroyed C-style array
syntax. I don't know why we're waiting so long to get rid of them.

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[Issue 953] Multiple C style declarations of same type cannot be in one statement

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--- Comment #6 from Andrej Mitrovic andrej.mitrov...@gmail.com 2013-01-20 
11:46:05 PST ---
(In reply to comment #5)
 This would be more simple to implement if we simply destroyed C-style array
 syntax.

Read that as: C-style declarations, because it also affects pointers.

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