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I recently added std::__detail::__int_limits as a lightweight alternative to std::numeric_limits, forgetting that the values it provides (digits, min and max) are already provided by __gnu_cxx::__numeric_traits. This change adds __int_traits as an alias for __numeric_traits_integer. This avoids instantiating __numeric_traits to decide whether to use __numeric_traits_integer or __numeric_traits_floating. Then all uses of __int_limits can be replaced with __int_traits, and __int_limits can be removed. libstdc++-v3/ChangeLog: * include/Makefile.am: Remove bits/int_limits.h. * include/Makefile.in: Regenerate. * include/bits/int_limits.h: Removed. * include/bits/parse_numbers.h (_Select_int_base): Replace __int_limits with __int_traits. * include/bits/range_access.h (_SSize::operator()): Likewise. * include/ext/numeric_traits.h (__numeric_traits_integer): Add static assertion. (__int_traits): New alias template. * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one) (__countr_zero, __countr_one, __popcount, __bit_ceil) (__bit_floor, __bit_width) Replace __int_limits with __int_traits. * include/std/charconv (__to_chars_8, __from_chars_binary) (__from_chars_alpha_to_num, from_chars): Likewise. * include/std/memory_resource (polymorphic_allocator::allocate) (polymorphic_allocator::allocate_object): Likewise. * include/std/string_view (basic_string_view::_S_compare): Likewise. * include/std/utility (cmp_equal, cmp_less, in_range): Likewise.
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