std::numeri...::has_denorm(3)

🎀 NAME 🎀

okay so bestie, this page is for std::numeric_limits::has_denorm — and the NAME line literally says std::numeric_limits::has_denorm — std::numeric_limits::has_denorm. yes, the same iconic name twice, no notes. 💅

It lives in the C++ Standard Libary manual, and the page title is that beautifully truncated std::numeri...::has_denorm(3).

✨ Synopsis ✨

the signature is literally this:

          static const std::float_denorm_style has_denorm;      (until C++11)
          static constexpr std::float_denorm_style has_denorm;  (since C++11)
                                                                (deprecated in
       C++23)

⚠️ heads up bestie: it is deprecated in C++23. not me telling you to ignore it, just keeping the vibe check honest. 😭

The value of std::numeric_limits<T>::has_denorm identifies the floating-point types that support subnormal values. that's the whole main-character job, periodt. ✨

👑 Standard specializations 👑

here's the lineup, bestie — T on the left, value of std::numeric_limits<T>::has_denorm on the right:

• /* non-specialized */ → std::denorm_absent
• bool → std::denorm_absent
• char → std::denorm_absent
• signed char → std::denorm_absent
• unsigned char → std::denorm_absent
• wchar_t → std::denorm_absent
• char8_t (since C++20) → std::denorm_absent
• char16_t (since C++11) → std::denorm_absent
• char32_t (since C++11) → std::denorm_absent
• short → std::denorm_absent
• unsigned short → std::denorm_absent
• int → std::denorm_absent
• unsigned int → std::denorm_absent
• long → std::denorm_absent
• unsigned long → std::denorm_absent
• long long (since C++11) → std::denorm_absent
• unsigned long long (since C++11) → std::denorm_absent
• float → usually std::denorm_present
• double → usually std::denorm_present
• long double → usually std::denorm_present

the integer-ish and character-ish girlies are all giving std::denorm_absent, while float, double, and long double are usually std::denorm_present. lowkey iconic. 🌸

🌈 See also 🌈

• denorm_min [static] — returns the smallest positive subnormal value of the given floating-point type (public static member function). 🫶
• float_denorm_style — indicates floating-point denormalization modes (enum). 🦋

kisses bestie! this cute little page came from http://cppreference.com, version 2024.06.10, and the footer title is std::numeri...::has_denorm(3) — periodt. 💖💅🎀