1 files changed, 29 insertions, 0 deletions
diff --git a/vendor/codeberg.org/gruf/go-bitutil/abs.go b/vendor/codeberg.org/gruf/go-bitutil/abs.go
new file mode 100644
index 000000000..f4ce8ad75
--- /dev/null
+++ b/vendor/codeberg.org/gruf/go-bitutil/abs.go
@@ -0,0 +1,29 @@
+package bitutil
+
+// Abs8 returns the absolute value of i (calculated without branching).
+func Abs8(i int8) int8 {
+	const bits = 8
+	u := uint64(i >> (bits - 1))
+	return (i ^ int8(u)) + int8(u&1)
+}
+
+// Abs16 returns the absolute value of i (calculated without branching).
+func Abs16(i int16) int16 {
+	const bits = 16
+	u := uint64(i >> (bits - 1))
+	return (i ^ int16(u)) + int16(u&1)
+}
+
+// Abs32 returns the absolute value of i (calculated without branching).
+func Abs32(i int32) int32 {
+	const bits = 32
+	u := uint64(i >> (bits - 1))
+	return (i ^ int32(u)) + int32(u&1)
+}
+
+// Abs64 returns the absolute value of i (calculated without branching).
+func Abs64(i int64) int64 {
+	const bits = 64
+	u := uint64(i >> (bits - 1))
+	return (i ^ int64(u)) + int64(u&1)
+}