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strconv: document value returned by ParseInt when there is an error

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Documenting existing behavior; new commentary only.
Fixes #7105.

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/68840044
This commit is contained in:
Rob Pike 2014-03-07 13:23:50 +11:00
parent 6ffd235161
commit c0d4576593
1 changed files with 5 additions and 3 deletions
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8
src/pkg/strconv/atoi.go
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@ -142,9 +142,11 @@ Error:
//
// The errors that ParseInt returns have concrete type *NumError
// and include err.Num = s. If s is empty or contains invalid
// digits, err.Err = ErrSyntax; if the value corresponding
// to s cannot be represented by a signed integer of the
// given size, err.Err = ErrRange.
// digits, err.Err = ErrSyntax and the returned value is 0;
// if the value corresponding to s cannot be represented by a
// signed integer of the given size, err.Err = ErrRange and the
// returned value is the maximum magnitude integer of the
// appropriate bitSize and sign.
func ParseInt(s string, base int, bitSize int) (i int64, err error) {
const fnParseInt = "ParseInt"