cgo: fix index-out-of-bounds bug

R=rsc CC=golang-dev https://golang.org/cl/4284057

cgo: fix index-out-of-bounds bug
R=rsc CC=golang-dev https://golang.org/cl/4284057
3be0921e · Robert Griesemer · 3a6c0990 · 3be0921e
Commit 3be0921e authored Mar 18, 2011 by Robert Griesemer
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ast.go src/cmd/cgo/ast.go +1 -1

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--- a/src/cmd/cgo/ast.go
+++ b/src/cmd/cgo/ast.go
@@ -180,7 +180,7 @@ func (f *File) saveExport(x interface{}, context string) {
 		return
 	}
 	for _, c := range n.Doc.List {
-		if string(c.Text[0:9]) != "//export " {
+		if !strings.HasPrefix(string(c.Text), "//export ") {
 			continue
 		}