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-rw-r--r--common/math/integer.go25
1 files changed, 0 insertions, 25 deletions
diff --git a/common/math/integer.go b/common/math/integer.go
deleted file mode 100644
index 8162b1985..000000000
--- a/common/math/integer.go
+++ /dev/null
@@ -1,25 +0,0 @@
-package math
-
-import gmath "math"
-
-/*
- * NOTE: The following methods need to be optimised using either bit checking or asm
- */
-
-// SafeSub returns subtraction result and whether overflow occurred.
-func SafeSub(x, y uint64) (uint64, bool) {
- return x - y, x < y
-}
-
-// SafeAdd returns the result and whether overflow occurred.
-func SafeAdd(x, y uint64) (uint64, bool) {
- return x + y, y > gmath.MaxUint64-x
-}
-
-// SafeMul returns multiplication result and whether overflow occurred.
-func SafeMul(x, y uint64) (uint64, bool) {
- if x == 0 {
- return 0, false
- }
- return x * y, x != 0 && y != 0 && y > gmath.MaxUint64/x
-}