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Starting with C++11, we have a full range of specialized string classes... E.g., std::u8string, std::u16string... std::u8string_view, and so forth. Strictly speaking they were introduced with C++11 (…
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Given `void f(concept int);`, Clang will emit the following:
```console
error: variable has incomplete type 'void'
void f(concept int);
^
error: expected expression
void f(concept int);
…
cjdb updated
6 months ago
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### Check duplicate issues.
- [X] Checked for duplicates
### Describe the bug
With ROOT v6-28-00-patches@v6-28-04-96-g9248a09 compiled with C++17 (**not** C++20) the code
```cpp
#ifdef __has_incl…
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On main, running `clang-scan-deps -format=p1689 -- clang++ -std=c++20 test.cc` on this program
```c++
// File: test.cc
#if 123'124
#endif
```
gives:
```
Error while scanning dependencies for t…
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Hello,
Compiling the latest trick on Ubuntu 20.04 with LLVM 10 produces the following error message:
```bash
/usr/bin/g++ -g -I/usr/lib/llvm-10/include -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MA…
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- [x] Checked for duplicates
### Describe the bug
When building CMS offline software stack with the ROOT commit 6f02c75fea, we get the following errors:
```
/data/cmsbld/jenkins/workspace/ib-run…
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when wrapping c++20 code,including concept and other new features,the swig may not work
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| | |
| --- | --- |
| Bugzilla Link | [51462](https://llvm.org/bz51462) |
| Version | trunk |
| OS | Windows NT |
| CC | @zygoloid |
## Extended Description
Currently _MSVC_LANG is defined as 2017…
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Hi,
We are trying to test latest ROOT 6.28 patches (commit 36349764e9) and ROOT master (commit 84d6328434) branch changes in cmssw. Though root itself builds fine in both cases but we get CMSSW bu…
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Many configuration macros need to be defined with a value (i.e. `-D=`). For some this cannot be avoided (e.g. `gsl_api`, `gsl_CONFIG_SPAN_INDEX_TYPE`), but most simply switch a particular feature on o…