[cfe-dev] Use of deleted function std::unique_ptr

[Masoud Ataei via cfe-dev]

Hello Chenwj,

Thank you for your reply. I did the following and it did work:

replace:
###
Token *Toks = new Token[Pragma.size()];
std::copy(Pragma.begin(), Pragma.end(), Toks);
PP.EnterTokenStream(Toks, Pragma.size(), /*DisableMacroExpansion=*/true,
/*OwnsTokens=*/true);
##
by:
##
auto Toks = llvm::make_unique<Token[]>(Pragma.size());
Toks[0] = Pragma[0];Toks[1] = Pragma[1];Toks[2] = Pragma[2];Toks[3] =
Pragma[3];
PP.EnterTokenStream(std::move(Toks), Pragma.size(), true);
##

Bests

On Wed, Jun 14, 2017 at 6:20 PM, 陳韋任 <chenwj.cs97g at g2.nctu.edu.tw> wrote:

> Probably you can `grep -r "EnterTokenStream" lib/*` to see how pass
> unique_ptr to
> EnterTokenStream. Seem you need to use std::move.
>
> HTH,
> chenwj
>
>
> 2017-06-15 0:43 GMT+08:00 Masoud Ataei via cfe-dev <cfe-dev at lists.llvm.org
> >:
>
>> Hello all,
>>
>> I have the following lines of code. To run it, I need to change the rule
>> of the function "EnterTokenStream" from private to a public function
>> in "/usr/local/include/clang/Lex/Preprocessor.h". In this case this code
>> will working with raw pointer "*Toks".
>> ------------------------------------
>> PP.Lex(Tok);
>> SmallVector<Token, 4> Pragma;
>> Pragma.push_back(Tok);
>>
>> Token *Toks = new Token[Pragma.size()];
>> std::copy(Pragma.begin(), Pragma.end(), Toks);
>> PP.EnterTokenStream(Toks, Pragma.size(), true, true);
>> --------------------------------------------------------------
>>
>> But default rule for the function "EnterTokenStream" is private. So I
>> cannot call this function, and I should call this one:
>> ---------------------------------------------
>> void EnterTokenStream(std::unique_ptr<Token[]> Toks, unsigned NumToks,
>> bool DisableMacroExpansion)
>> ---------------------------------------------
>>
>>
>> First argument of this function needs  "std::unique_ptr<Token[]> Toks".
>> So I have tried to define Toks as a unique pointer. I did like this:
>> --------------------------------------------
>> PP.Lex(Tok);
>> SmallVector<Token, 4> Pragma;
>> Pragma.push_back(Tok);
>>
>> unique_ptr<Token[]> Toks(new Token[Pragma.size()]);
>> std::copy(Pragma.begin(), Pragma.end(), Toks);
>> PP.EnterTokenStream(Toks, Pragma.size(), true);
>> ------------------------------------------------
>>
>> but it gives me the following error for std::copy:
>> ---------------------------------------------
>>  error: use of deleted function ‘std::unique_ptr<_Tp [],
>> _Dp>::unique_ptr(const std::unique_ptr<_Tp [], _Dp>&) [with _Tp =
>> clang::Token; _Dp = std::default_delete<clang::Token []>]’
>>     std::copy(Pragma.begin(), Pragma.end(), Toks);
>> ----------------------------------------------------------
>>
>> and the same error for EnterTokenStream:
>> ------------------------------------------------------
>> error: use of deleted function ‘std::unique_ptr<_Tp [],
>> _Dp>::unique_ptr(const std::unique_ptr<_Tp [], _Dp>&) [with _Tp =
>> clang::Token; _Dp = std::default_delete<clang::Token []>]’
>>     PP.EnterTokenStream(Toks, Pragma.size(), true);
>> ------------------------------------------------------------
>>
>> Can anyone help me how to fix this errors? How can I change my original
>> code to something that I can use the new EnterTokenStream function?
>>
>> Thank you.
>>
>> --
>> ------
>> ----------
>> Masoud Ataei (Mr.)
>>
>>
>> _______________________________________________
>> cfe-dev mailing list
>> cfe-dev at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev
>>
>>
>
>
> --
> Wei-Ren Chen (陳韋任)
> Homepage: https://people.cs.nctu.edu.tw/~chenwj
>



-- 
------
----------
Masoud Ataei (Mr.)
http://publish.uwo.ca/~mataeija
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/cfe-dev/attachments/20170614/56a5b709/attachment.html>