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problems compiling nightly on MSVS2019/2017 nested lambda's [message #56861]

Thu, 22 April 2021 15:40

Typhoor
Messages: 14
Registered: October 2012
Location: Erlangen, Germany

Promising Member

Hi fellow developers,
Am I the only one having problems on the "nightly" github code with MSVS 2019/2019?
Since early of the year I get compiling errors on lambdas in lambdas with MSVS 2019/2017 (debug/release)
error C2059: syntax error: '.'
error C2143; syntax error: missing ';' before '{'
error C2059: syntax error: ')'

In two files:
uppsrc\ide\Designers\md.cpp line 18 in "IdeMDDes::IdeMDDes()"

editor << [=] { tm.KillSet(250, [=] { Preview(); }); };

and uppsrc\ide\UppHub.cpp line 85 in "UppHubDlg::UppHubDlg()"

tm.KillPost([=] { UrlLoading(); });

included in

 list.WhenSel = [=] { ... }

I checked all over forum but couldn't find a hit.

Has support of MSVS been discontinued ?
I'm using newest MSVS compilers (VS19 = 16.9.4)

Thanx for a hint...
Ralph

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Re: problems compiling nightly on MSVS2019/2017 nested lambda's [message #56882 is a reply to message #56861]

Sun, 25 April 2021 08:13

mirek
Messages: 14284
Registered: November 2005

Ultimate Member

Thank you! We completely missed that (CLANG is too good to use MSVC...).

It looks like compiler bug - I guess that MSVC finds struct tm and somehow tries to use it in lambda as variable. It is easy to workaround though (just renamed tm to delay).

Trunk should now compile..

Miek

[Updated on: Sun, 25 April 2021 08:13]

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