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authorkiel barry <kiel.j.barry@gmail.com>2018-05-29 18:42:21 +0800
committerFelix Lange <fjl@users.noreply.github.com>2018-05-29 18:42:21 +0800
commit84f8c0cc1fbe1ab9c128555392a82ba609820fef (patch)
tree4859fe37105cc88d4d338a9f5bc55e42a017a29f /common/math/big.go
parent998f6564b28ea9241d0052c2abee090d2b9a8b63 (diff)
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common: improve documentation comments (#16701)
This commit adds many comments and removes unused code. It also removes the EmptyHash function, which had some uses but was silly.
Diffstat (limited to 'common/math/big.go')
-rw-r--r--common/math/big.go5
1 files changed, 2 insertions, 3 deletions
diff --git a/common/math/big.go b/common/math/big.go
index 787278650..dbf2770a9 100644
--- a/common/math/big.go
+++ b/common/math/big.go
@@ -78,7 +78,7 @@ func ParseBig256(s string) (*big.Int, bool) {
return bigint, ok
}
-// MustParseBig parses s as a 256 bit big integer and panics if the string is invalid.
+// MustParseBig256 parses s as a 256 bit big integer and panics if the string is invalid.
func MustParseBig256(s string) *big.Int {
v, ok := ParseBig256(s)
if !ok {
@@ -186,9 +186,8 @@ func U256(x *big.Int) *big.Int {
func S256(x *big.Int) *big.Int {
if x.Cmp(tt255) < 0 {
return x
- } else {
- return new(big.Int).Sub(x, tt256)
}
+ return new(big.Int).Sub(x, tt256)
}
// Exp implements exponentiation by squaring.