Use math.Abs and math.Copysign to maintain sign
diff --git a/si.go b/si.go
index 699530e..9cce4e8 100644
--- a/si.go
+++ b/si.go
@@ -61,25 +61,20 @@
if input == 0 {
return 0, ""
}
- isNegative := input < 0
- if isNegative {
- input *= -1
- }
- exponent := math.Floor(logn(input, 10))
+ mag := math.Abs(input)
+ exponent := math.Floor(logn(mag, 10))
exponent = math.Floor(exponent/3) * 3
- value := input / math.Pow(10, exponent)
+ value := mag / math.Pow(10, exponent)
// Handle special case where value is exactly 1000.0
// Should return 1M instead of 1000k
if value == 1000.0 {
exponent += 3
- value = input / math.Pow(10, exponent)
+ value = mag / math.Pow(10, exponent)
}
- if isNegative {
- value *= -1
- }
+ value = math.Copysign(value, input)
prefix := siPrefixTable[exponent]
return value, prefix
