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<chrono>: Reduce put_time calls in [time.format] #1900

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mnatsuhara opened this issue May 4, 2021 · 0 comments
Open

<chrono>: Reduce put_time calls in [time.format] #1900

mnatsuhara opened this issue May 4, 2021 · 0 comments
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chrono C++20 chrono performance Must go faster

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@mnatsuhara
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mnatsuhara commented May 4, 2021 •
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Observed by @statementreply

The current [time.format] implementation calls put_time once for each formatting field - we should investigate improving performance here (perhaps by leveraging internal machinery).

Discovered while implementing #12.
@mnatsuhara mnatsuhara changed the title @statementreply [observes](https://github.com/microsoft/STL/pull/1870#discussion_r617528729) that the current [time.format] implementation calls put_time once for each formatting field - we should investigate improving performance here (perhaps by leveraging internal machinery). <chrono>: Reduce put_time calls in [time.format] May 4, 2021
@mnatsuhara mnatsuhara added chrono C++20 chrono performance Must go faster labels May 4, 2021
@TheStormN TheStormN mentioned this issue Aug 8, 2024
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