GOMODULES
/
pgx
mirror of https://github.com/jackc/pgx.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

optimize parseNumericString

pull/1698/head
horpto 2023-07-24 17:23:55 +03:00 committed by Jack Christensen
parent 4091eedf03
commit f4533dc906
1 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
pgtype/numeric.go
View File

@ -144,20 +144,20 @@ func (n *Numeric) toBigInt() (*big.Int, error) {
}
func parseNumericString(str string) (n *big.Int, exp int32, err error) {
parts := strings.SplitN(str, ".", 2)
digits := strings.Join(parts, "")
idx := strings.IndexByte(str, '.')
if len(parts) > 1 {
exp = int32(-len(parts[1]))
} else {
for len(digits) > 1 && digits[len(digits)-1] == '0' && digits[len(digits)-2] != '-' {
digits = digits[:len(digits)-1]
if idx == -1 {
for len(str) > 1 && str[len(str)-1] == '0' && str[len(str)-2] != '-' {
str = str[:len(str)-1]
exp++
}
} else {
exp = int32(-(len(str) - idx - 1))
str = str[:idx] + str[idx+1:]
}
accum := &big.Int{}
if _, ok := accum.SetString(digits, 10); !ok {
if _, ok := accum.SetString(str, 10); !ok {
return nil, 0, fmt.Errorf("%s is not a number", str)
}