Hi,
I was trying to find the official way to pass a Go string to CGO code as
a void* (or char*) with explicit length.
... using only one allocation/copy.
I could probably just call C.CString(string) and ignore the extra \0
added by CGO, but I'm a little puzzled that there's not a shorthand for
those with C APIs not using null-terminated strings.
Someone proposed this hack:
*((**byte)(unsafe.Pointer(&theString)))
... resulting in a *byte pointing to the data - which can then be copied
to C-managed memory.
But that relies on knowing that the string implementation starts with a
pointer to the data.
It would be great with a
func C.CStringData(string) (*C.char, C.int) // or void*
/Peter
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