Menu
Search

Forums

Forum Index

Thread overview
Invalid string literal in ASM
Oct 01, 2018
dokutoku
Oct 01, 2018
Basile B.
Oct 01, 2018
Basile B.
Oct 04, 2018
dokutoku
October 01, 2018
Gravatar of dokutokuPosted by dokutokuReply
dokutoku
Gravatar of dokutoku


Reply
I get a compiler error when I try to put non-ASCII characters in a string literal in the inline assembler.

Is this part of the specifications?
October 01, 2018
Gravatar of Basile B.Posted by Basile B.
in reply to dokutoku		Reply
Basile B.
Gravatar of Basile B.
Posted in reply to dokutoku


Reply
On Monday, 1 October 2018 at 08:14:07 UTC, dokutoku wrote:
> I get a compiler error when I try to put non-ASCII characters in a string literal in the inline assembler.
>
> Is this part of the specifications?

It's not clear, see https://dlang.org/spec/iasm.html#raw_data:

"if an operand is a string literal, it is as if there were length operands, where length is the number of characters in the string"

db "e"; // ok
db "é"; // error

it seems that the second case should be accepted as db 195 db 169
October 01, 2018
Gravatar of Basile B.Posted by Basile B.
in reply to Basile B.		Reply
Basile B.
Gravatar of Basile B.
Posted in reply to Basile B.


Reply
On Monday, 1 October 2018 at 09:24:47 UTC, Basile B. wrote:
> On Monday, 1 October 2018 at 08:14:07 UTC, dokutoku wrote:
>> I get a compiler error when I try to put non-ASCII characters in a string literal in the inline assembler.
>>
>> Is this part of the specifications?
>
> It's not clear, see https://dlang.org/spec/iasm.html#raw_data:
>
> "if an operand is a string literal, it is as if there were length operands, where length is the number of characters in the string"
>
> db "e"; // ok
> db "é"; // error
>
> it seems that the second case should be accepted as db 195 db 169

BUG imo. length is 2. "é" should be interpreted as the 2 bytes of its data.
Something with decoding is wrong here.
October 04, 2018
Gravatar of dokutokuPosted by dokutoku
in reply to Basile B.		Reply
dokutoku
Gravatar of dokutoku
Posted in reply to Basile B.


Reply
On Monday, 1 October 2018 at 10:45:25 UTC, Basile B. wrote:
> On Monday, 1 October 2018 at 09:24:47 UTC, Basile B. wrote:
>> On Monday, 1 October 2018 at 08:14:07 UTC, dokutoku wrote:
>>> I get a compiler error when I try to put non-ASCII characters in a string literal in the inline assembler.
>>>
>>> Is this part of the specifications?
>>
>> It's not clear, see https://dlang.org/spec/iasm.html#raw_data:
>>
>> "if an operand is a string literal, it is as if there were length operands, where length is the number of characters in the string"
>>
>> db "e"; // ok
>> db "é"; // error
>>
>> it seems that the second case should be accepted as db 195 db 169
>
> BUG imo. length is 2. "é" should be interpreted as the 2 bytes of its data.
> Something with decoding is wrong here.

As a conclusion, is it OK to say DMD bug?