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cmd/cgo: make C function pointers non-assignable

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Fixes #7757.
Fixes #8488.

LGTM=iant
R=iant
CC=golang-codereviews
https://golang.org/cl/118690044
This commit is contained in:
Matthew Dempsky 2014-08-12 12:55:12 -07:00 • committed by Ian Lance Taylor
parent e4d4787581
commit 11016f62d8
4 changed files with 23 additions and 2 deletions
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2
src/cmd/cgo/out.go
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@ -64,7 +64,7 @@ func (p *Package) writeDefs() {
if !*gccgo && *importRuntimeCgo {
fmt.Fprintf(fgo2, "import _ \"runtime/cgo\"\n\n")
}
fmt.Fprintf(fgo2, "type _ unsafe.Pointer\n\n")
fmt.Fprintf(fgo2, "func _Cgo_ptr(ptr unsafe.Pointer) unsafe.Pointer { return ptr }\n\n")
if *importSyscall {
fmt.Fprintf(fgo2, "func _Cerrno(dst *error, x int32) { *dst = syscall.Errno(x) }\n")
}