包装float

float.go

@@ -0,0 +1,53 @@
+// Package wrapper ...
+//
+// Description : wrapper ...
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 2023-05-05 14:33
+package wrapper
+
+import (
+	"fmt"
+	"math"
+)
+
+// Float ...
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 14:33 2023/5/5
+type Float float64
+
+// ToFloat32 ...
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 14:36 2023/5/5
+func (f Float) ToFloat32() (float32, error) {
+	if f > math.MaxFloat32 || f < math.SmallestNonzeroFloat32 {
+		return 0, fmt.Errorf("float32 should between %v and %v", math.SmallestNonzeroFloat32, math.MaxFloat32)
+	}
+	return float32(f), nil
+}
+
+// ToFloat64 ...
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 14:36 2023/5/5
+func (f Float) ToFloat64() (float64, error) {
+	if f > math.MaxFloat64 || f < math.SmallestNonzeroFloat64 {
+		return 0, fmt.Errorf("float32 should between %v and %v", math.SmallestNonzeroFloat64, math.MaxFloat64)
+	}
+	return float64(f), nil
+}
+
+// ToString ...
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 14:38 2023/5/5
+func (f Float) ToString() string {
+	return fmt.Sprintf("%v", f)
+}