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store_max.go
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/
store_max.go
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package store
import (
"fmt"
"math/big"
"strconv"
"github.com/shopspring/decimal"
)
func (b *baseStore) SetMaxBigInt(ord uint64, key string, value *big.Int) {
max := new(big.Int)
val, found := b.GetAt(ord, key)
if !found {
max = value
} else {
prev, _ := new(big.Int).SetString(string(val), 10)
if prev != nil && value.Cmp(prev) > 0 {
max = value
} else {
max = prev
}
}
b.set(ord, key, []byte(max.String()))
}
func (b *baseStore) SetMaxInt64(ord uint64, key string, value int64) {
var max int64
val, found := b.GetAt(ord, key)
if !found {
max = value
} else {
prev, err := strconv.ParseInt(string(val), 10, 64)
if err != nil || value > prev {
max = value
} else {
max = prev
}
}
b.set(ord, key, []byte(fmt.Sprintf("%d", max)))
}
func (b *baseStore) SetMaxFloat64(ord uint64, key string, value float64) {
var max float64
val, found := b.GetAt(ord, key)
if !found {
max = value
} else {
prev, err := strconv.ParseFloat(string(val), 64)
if err != nil || value > prev {
max = value
} else {
max = prev
}
}
b.set(ord, key, []byte(strconv.FormatFloat(max, 'g', 100, 64)))
}
func (b *baseStore) SetMaxBigDecimal(ord uint64, key string, value decimal.Decimal) {
val, found := b.GetAt(ord, key)
if !found {
b.set(ord, key, []byte(value.String()))
return
}
prev, err := decimal.NewFromString(string(val))
prev.Truncate(34)
if err != nil || value.Cmp(prev) == 1 {
b.set(ord, key, []byte(value.String()))
return
}
b.set(ord, key, []byte(prev.String()))
}