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<format>: fix std::format("{:#.precision}", floating) #3815

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merged 17 commits into from
Jun 22, 2023
Merged

<format>: fix std::format("{:#.precision}", floating) #3815

merged 17 commits into from
Jun 22, 2023

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achabense
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@achabense achabense commented Jun 20, 2023 •
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@achabense achabense requested a review from a team as a code owner June 20, 2023 12:53
achabense
achabense commented Jun 20, 2023
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tests/std/tests/GH_003003_format_fix_decimal_point_and_trailing_zero/test.cpp Outdated
assert(std::format("{:#.3}", 10.1) == "10.1");
assert(std::format("{:#.4}", 10.1) == "10.1");
assert(std::format("{:#.5}", 10.1) == "10.1");
}
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@achabense achabense Jun 20, 2023 •
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Only none type is affected by this pr, so there are no checks for other format types('g','a','f',etc).

tests/std/tests/GH_003003_format_fix_decimal_point_and_trailing_zero/env.lst Outdated Show resolved Hide resolved
@StephanTLavavej StephanTLavavej added bug Something isn't working format C++20/23 format labels Jun 20, 2023
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I looked up the failing test names in the Azure Pipelines output, removed the corresponding lines from tests/libcxx/expected_results.txt, then validated that the directory and the newly added test are passing with:

python tests\utils\stl-lit\stl-lit.py %STL%\tests\std\tests\GH_003003_format_decimal_point %STL%\llvm-project\libcxx\test\std\utilities\format\format.functions --order=random -o testing_x64.log

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Thank you for these significant runtime correctness fixes! 😻 🛠️ ✨

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I'm speculatively mirroring this to the MSVC-internal repo - please notify me if any further changes are pushed.

@StephanTLavavej StephanTLavavej merged commit 057adf2 into microsoft:main Jun 22, 2023
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Thanks again for these fixes! 🚀 🚀 🚀

@achabense achabense deleted the _For_format branch June 23, 2023 03:23
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@frederick-vs-ja frederick-vs-ja frederick-vs-ja left review comments

@barcharcraz barcharcraz barcharcraz approved these changes

@strega-nil strega-nil strega-nil approved these changes

@StephanTLavavej StephanTLavavej StephanTLavavej approved these changes

@strega-nil-ms strega-nil-ms strega-nil-ms approved these changes

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<format>: Incorrect decimal point placement when using alternate form without a type
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@achabense @StephanTLavavej @barcharcraz @strega-nil @frederick-vs-ja @strega-nil-ms