microsoft / microsoft/vscode-cpptools

1.26 regression: hovering over a long double shows an invalid value on Linux

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#13,674 2 comments 0 reactions 1 assignee View on GitHub

@sean-mcmanus is already working on this.

Since Jun 5, 2025.

bug Language Service regression Visual Studio
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Description

Use code like const long double ldvar = 10.0l; and hover over the long double const variable or literal and it shows an invalid value. It works with 1.25.3. Reproed on Linux x64 (doesn't repro on Mac or Windows).

Image

Also, repros with 10.0W (__float80), but not 10.0Q (__float128).

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