fix(bindings): Go and C++ one() constant uses from_f32(1.0)

GF16_ONE=0x3C00 decodes to 0.25, not 1.0. Use from_f32(1.0) roundtrip instead.

Author: gHashTag

cpp/include/goldenfloat/gf16.hpp

@@ -100,8 +100,8 @@ class Gf16 {
     /**
      * @brief One constant
      */
-    static constexpr Gf16 one() noexcept {
-        return Gf16(GF16_ONE);
+    static Gf16 one() noexcept {
+        return from_f32(1.0f);
     }
 
     /**

go/goldenfloat/gf16.go

@@ -107,9 +107,10 @@ func (a Gf16) Fma(b, c Gf16) Gf16 {
 	return Gf16(C.gf16_fma(C.uint16_t(a), C.uint16_t(b), C.uint16_t(c)))
 }
 
+var One = FromF32(1.0)
+
 const (
 	Zero  Gf16 = 0x0000
-	One   Gf16 = 0x3C00
 	PInf  Gf16 = 0x7E00
 	NInf  Gf16 = 0xFE00
 	NaN   Gf16 = 0x7E01