fix float cast precicion in a few validations (#1146)

Author: Dean Karn

baked_in.go

@@ -1295,8 +1295,13 @@ func isEq(fl FieldLevel) bool {
 
 		return field.Uint() == p
 
-	case reflect.Float32, reflect.Float64:
-		p := asFloat(param)
+	case reflect.Float32:
+		p := asFloat32(param)
+
+		return field.Float() == p
+
+	case reflect.Float64:
+		p := asFloat64(param)
 
 		return field.Float() == p
 
@@ -1760,8 +1765,11 @@ func requireCheckFieldValue(
 	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
 		return field.Uint() == asUint(value)
 
-	case reflect.Float32, reflect.Float64:
-		return field.Float() == asFloat(value)
+	case reflect.Float32:
+		return field.Float() == asFloat32(value)
+
+	case reflect.Float64:
+		return field.Float() == asFloat64(value)
 
 	case reflect.Slice, reflect.Map, reflect.Array:
 		return int64(field.Len()) == asInt(value)
@@ -2060,8 +2068,13 @@ func isGte(fl FieldLevel) bool {
 
 		return field.Uint() >= p
 
-	case reflect.Float32, reflect.Float64:
-		p := asFloat(param)
+	case reflect.Float32:
+		p := asFloat32(param)
+
+		return field.Float() >= p
+
+	case reflect.Float64:
+		p := asFloat64(param)
 
 		return field.Float() >= p
 
@@ -2106,10 +2119,16 @@ func isGt(fl FieldLevel) bool {
 
 		return field.Uint() > p
 
-	case reflect.Float32, reflect.Float64:
-		p := asFloat(param)
+	case reflect.Float32:
+		p := asFloat32(param)
 
 		return field.Float() > p
+
+	case reflect.Float64:
+		p := asFloat64(param)
+
+		return field.Float() > p
+
 	case reflect.Struct:
 
 		if field.Type().ConvertibleTo(timeType) {
@@ -2148,8 +2167,13 @@ func hasLengthOf(fl FieldLevel) bool {
 
 		return field.Uint() == p
 
-	case reflect.Float32, reflect.Float64:
-		p := asFloat(param)
+	case reflect.Float32:
+		p := asFloat32(param)
+
+		return field.Float() == p
+
+	case reflect.Float64:
+		p := asFloat64(param)
 
 		return field.Float() == p
 	}
@@ -2281,8 +2305,13 @@ func isLte(fl FieldLevel) bool {
 
 		return field.Uint() <= p
 
-	case reflect.Float32, reflect.Float64:
-		p := asFloat(param)
+	case reflect.Float32:
+		p := asFloat32(param)
+
+		return field.Float() <= p
+
+	case reflect.Float64:
+		p := asFloat64(param)
 
 		return field.Float() <= p
 
@@ -2327,8 +2356,13 @@ func isLt(fl FieldLevel) bool {
 
 		return field.Uint() < p
 
-	case reflect.Float32, reflect.Float64:
-		p := asFloat(param)
+	case reflect.Float32:
+		p := asFloat32(param)
+
+		return field.Float() < p
+
+	case reflect.Float64:
+		p := asFloat64(param)
 
 		return field.Float() < p
 

util.go

@@ -261,13 +261,19 @@ func asUint(param string) uint64 {
 	return i
 }
 
-// asFloat returns the parameter as a float64
+// asFloat64 returns the parameter as a float64
 // or panics if it can't convert
-func asFloat(param string) float64 {
-
+func asFloat64(param string) float64 {
 	i, err := strconv.ParseFloat(param, 64)
 	panicIf(err)
+	return i
+}
 
+// asFloat64 returns the parameter as a float64
+// or panics if it can't convert
+func asFloat32(param string) float64 {
+	i, err := strconv.ParseFloat(param, 32)
+	panicIf(err)
 	return i
 }