AK: Add Formatter<FixedPoint<...>> without floating point

Rather than casting the FixedPoint to double, format the FixedPoint directly. This avoids using floating point instruction, which in turn enables this to be used even in the kernel.
Author: https://github.com/tomuta Commit: f021baf255 Pull-request: https://github.com/SerenityOS/serenity/pull/11439 Reviewed-by: https://github.com/kleinesfilmroellchen Reviewed-by: https://github.com/linusg ✅
2025-08-21 09:49:21 +00:00 · 2021-12-27 18:23:04 -07:00 · 2021-12-27 18:23:04 -07:00 · f021baf255 · 2024-07-17 20:21:45 +09:00
commit f021baf255
parent 77b3230c80
4 changed files with 124 additions and 15 deletions
--- a/AK/FixedPoint.h
+++ b/AK/FixedPoint.h
@ -315,21 +315,6 @@ private:
    Underlying m_value;
 };

-template<size_t precision, Integral Underlying>
-struct Formatter<FixedPoint<precision, Underlying>> : StandardFormatter {
-    Formatter() = default;
-    explicit Formatter(StandardFormatter formatter)
-        : StandardFormatter(formatter)
-    {
-    }
-
-    ErrorOr<void> format(FormatBuilder& builder, FixedPoint<precision, Underlying> value)
-    {
-        Formatter<double> formatter { *this };
-        return formatter.format(builder, (double)value);
-    }
-};
-
 }

 using AK::FixedPoint;