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Prettify STL error output #2897

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merged 9 commits into from
Aug 3, 2022

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strega-nil-ms
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@strega-nil-ms strega-nil-ms commented Jul 22, 2022

Fixes #2896

Before:

PS ...\stl-tests> cl /Tc .\stl-warnings.cxx
Microsoft (R) C/C++ Optimizing Compiler Version 19.33.31517 for x64
Copyright (C) Microsoft Corporation.  All rights reserved.

stl-warnings.cxx
...\yvals_core.h(23): fatal error C1189: #error:  STL1003: Unexpected compiler, expected C++ compiler.

After

PS ...\stl-tests> cl /Tc .\stl-warnings.cxx
Microsoft (R) C/C++ Optimizing Compiler Version 19.33.31517 for x64
Copyright (C) Microsoft Corporation.  All rights reserved.

stl-warnings.cxx
...\yvals_core.h(432): error STL1003: Unexpected compiler, expected C++ compiler.
...\yvals_core.h(432): error C2338: static_assert failed: 'Error in C++ Standard Library usage.'

Before:

```
PS ...\stl-tests> cl /Tc .\stl-warnings.cxx
Microsoft (R) C/C++ Optimizing Compiler Version 19.33.31517 for x64
Copyright (C) Microsoft Corporation.  All rights reserved.

stl-warnings.cxx
...\yvals_core.h(23): fatal error C1189: #error:  STL1003: Unexpected compiler, expected C++ compiler.
```

After

```
PS ...\stl-tests> cl /Tc .\stl-warnings.cxx
Microsoft (R) C/C++ Optimizing Compiler Version 19.33.31517 for x64
Copyright (C) Microsoft Corporation.  All rights reserved.

stl-warnings.cxx
...\yvals_core.h(432): error STL1003: Unexpected compiler, expected C++ compiler.
...\yvals_core.h(432): error C2338: static_assert failed: 'Error in C++ Standard Library usage.'
```
@strega-nil-ms strega-nil-ms added enhancement Something can be improved decision needed We need to choose something before working on this labels Jul 22, 2022
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Given that people generally seem happy with the idea of the changes, marking non-draft

@strega-nil-ms strega-nil-ms marked this pull request as ready for review July 26, 2022 00:37
@strega-nil-ms strega-nil-ms requested a review from a team as a code owner July 26, 2022 00:37
@strega-nil-ms strega-nil-ms removed the decision needed We need to choose something before working on this label Jul 26, 2022
@StephanTLavavej
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Need to merge main in order to pick up #2061.

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@strega-nil-ms @CaseyCarter I've pushed a correctness fix, message appearance fix, and completed workaround removal - please double-check 😸

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Thanks @StephanTLavavej, looks good to me :)

@StephanTLavavej StephanTLavavej self-assigned this Aug 3, 2022
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I'm mirroring this to the MSVC-internal repo - please notify me if any further changes are pushed.

@StephanTLavavej StephanTLavavej merged commit 222a558 into microsoft:main Aug 3, 2022
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Thanks for improving how these errors are displayed! ✨ 🎉 😺

strega-nil added a commit to strega-nil/stl that referenced this pull request Aug 6, 2022
Co-authored-by: Nicole Mazzuca <mazzucan@outlook.com>
Co-authored-by: Stephan T. Lavavej <stl@nuwen.net>
fsb4000 pushed a commit to fsb4000/STL that referenced this pull request Aug 13, 2022
Co-authored-by: Nicole Mazzuca <mazzucan@outlook.com>
Co-authored-by: Stephan T. Lavavej <stl@nuwen.net>
@strega-nil-ms strega-nil-ms deleted the better-error-message branch December 19, 2022 23:42
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Should STL errors use pragma message in order to make the output prettier/more obvious?
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