In the Turkish locale, "INFO".lower() != "info"

Re:In the Turkish locale, "INFO".lower() != "info" by cesarb on Sunday August 16, 2020 @12:01PM (#24178837)

Java has two variants of toLowerCase(): one which uses the default/current locale (almost never what you want), and one which receives an explicit locale (Locale.ROOT is almost always the one you want). At work, we use the "forbidden APIs" checker (https://github.com/policeman-tools/forbidden-apis) to fail the CI if the variant which uses the default locale is ever used; if you really want to use a locale-dependent toLowerCase(), you have to explicitly call Locale.getDefault() and use it as the locale.

Is there something similar for C and C++? It could help in your case, by making your well-meaning colleagues aware of the issue.

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Re:In the Turkish locale, "INFO".lower() != "info" by vesinisa on Sunday August 16, 2020 @06:50PM (#24182054)

> Locale.ROOT is almost always the one you want

At least Android developers are advised to use Locale.US: https://developer.android.com/reference/java/util/Locale

> The default locale is not appropriate for machine-readable output. The best choice there is usually Locale.US – this locale is guaranteed to be available on all devices, and the fact that it has no surprising special cases and is frequently used

It would be indeed interesting to see in which features these two locales actually differ.

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Re:In the Turkish locale, "INFO".lower() != "info" by rvnx on Sunday August 16, 2020 @04:32PM (#24181035)

Yes, tolower_l(string, locale)

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