[release-branch.go1.13] strconv: update documentation

Fixes #33750.
Updates #31197.

Change-Id: I26f63cef57e5f0eec85b84554c82f6d47b4f41a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/191078
Reviewed-by: Robert Griesemer <gri@golang.org>
(cherry picked from commit d9b13233378668a4fd24ac5d044e9d550cd2a8be)
Reviewed-on: https://go-review.googlesource.com/c/go/+/191168
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>

diff --git a/src/strconv/atof.go b/src/strconv/atof.go
index 0903fa155ae7cd8cf52a004630b0ac81ffe40a9f..190b25fbf5711732a829931ef9bde7b107228459 100644 (file)
--- a/src/strconv/atof.go
+++ b/src/strconv/atof.go
@@ -643,7 +643,7 @@ func atof64(s string) (f float64, err error) {
 // ParseFloat returns the nearest floating-point number rounded
 // using IEEE754 unbiased rounding.
 // (Parsing a hexadecimal floating-point value only rounds when
-// there are more bits in the hexadecimal representatiton than
+// there are more bits in the hexadecimal representation than
 // will fit in the mantissa.)
 //
 // The errors that ParseFloat returns have concrete type *NumError

diff --git a/src/strconv/atoi.go b/src/strconv/atoi.go
index 31774d0c9a383dd05499a039924ba31a6670df8e..0233f14b406e4fc56dd40d8d334f81ca091dd398 100644 (file)
--- a/src/strconv/atoi.go
+++ b/src/strconv/atoi.go
@@ -154,7 +154,8 @@ func ParseUint(s string, base int, bitSize int) (uint64, error) {
 //
 // If base == 0, the base is implied by the string's prefix:
 // base 2 for "0b", base 8 for "0" or "0o", base 16 for "0x",
-// and base 10 otherwise.
+// and base 10 otherwise. Also, for base == 0 only, underscore
+// characters are permitted per the Go integer literal syntax.
 // If base is below 0, is 1, or is above 36, an error is returned.
 //
 // The bitSize argument specifies the integer type