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go
golang
Commits
0c9ea63b
Commit
0c9ea63b
authored
Aug 31, 2011
by
Russ Cox
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cgo: explain how to free something
R=golang-dev, n13m3y3r, r CC=golang-dev
https://golang.org/cl/4958053
parent
335da67e
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src/cmd/cgo/doc.go
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@@ -72,7 +72,10 @@ the pointer to the first element explicitly: C.f(&x[0]).
A few special functions convert between Go and C types
by making copies of the data. In pseudo-Go definitions:
// Go string to C string - result is not garbage collected
// Go string to C string
// The C string is allocated in the C heap using malloc.
// It is the caller's responsibility to arrange for it to be
// freed, such as by calling C.free.
func C.CString(string) *C.char
// C string to Go string
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