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[release-branch.go1] syscall: simplify text returned by Errno.Error() when FormatMessage fails

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««« backport ac7250065a04
syscall: simplify text returned by Errno.Error() when FormatMessage fails

Fixes #3623.

R=golang-dev, bsiegert, rsc
CC=golang-dev
https://golang.org/cl/6218072

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This commit is contained in:
Alex Brainman 2012-06-13 16:24:22 -04:00
parent 920ebab03c
commit 6835ec91dd
1 changed files with 3 additions and 1 deletions
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4
src/pkg/syscall/syscall_windows.go
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@ -90,7 +90,9 @@ func (e Errno) Error() string {
b := make([]uint16, 300) b := make([]uint16, 300)
n, err := FormatMessage(flags, 0, uint32(e), langid(LANG_ENGLISH, SUBLANG_ENGLISH_US), b, nil) n, err := FormatMessage(flags, 0, uint32(e), langid(LANG_ENGLISH, SUBLANG_ENGLISH_US), b, nil)
if err != nil { if err != nil {
return "error " + itoa(int(e)) + " (FormatMessage failed with err=" + itoa(int(err.(Errno))) + ")" // TODO(brainman): Call FormatMessage again asking for "native" error message.
// http://code.google.com/p/go/issues/detail?id=3376 must be resolved first.
return "winapi error #" + itoa(int(e))
} }
// trim terminating \r and \n // trim terminating \r and \n
for ; n > 0 && (b[n-1] == '\n' || b[n-1] == '\r'); n-- { for ; n > 0 && (b[n-1] == '\n' || b[n-1] == '\r'); n-- {