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### 3807. The feature test macro for `ranges::find_last` should be renamed

Section: 17.3.2 [version.syn] Status: Ready Submitter: Daniel Marshall Opened: 2022-11-02 Last modified: 2022-11-12

Priority: Not Prioritized

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Discussion:

The current feature test macro is `__cpp_lib_find_last` which is inconsistent with almost all other ranges algorithms which are in the form `__cpp_lib_ranges_xxx`.

Proposed resolution is to rename the macro to `__cpp_lib_ranges_find_last`.

[Kona 2022-11-12; Move to Ready]

Proposed resolution:

This wording is relative to N4917.

1. Modify 17.3.2 [version.syn], header `<version>` synopsis, as indicated:

   >     […]
   >     #define __cpp_lib_filesystem              201703L // also in <filesystem>
   >     #define __cpp_lib_ranges_find_last        202207L // also in <algorithm>
   >     #define __cpp_lib_flat_map                202207L // also in <flat_map>
   >     […]