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cmd/cgo: mishandles type conversions in expression #29383

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ianlancetaylor opened this issue Dec 21, 2018 · 1 comment
Closed

cmd/cgo: mishandles type conversions in expression #29383

ianlancetaylor opened this issue Dec 21, 2018 · 1 comment
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FrozenDueToAge NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. release-blocker
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Go1.12

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@ianlancetaylor
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This test case compiles with Go 1.11.

package p

// #include <stddef.h>
import "C"

func xcalloc(n, size uint) int {
	if 0/C.size_t(n) < C.size_t(size) {
		return 0
	}
	return 0
}

With tip I get

foo.go:8:3: syntax error: unexpected return, expecting expression
@ianlancetaylor ianlancetaylor added NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. release-blocker labels Dec 21, 2018
@ianlancetaylor ianlancetaylor added this to the Go1.12 milestone Dec 21, 2018
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Change https://golang.org/cl/155638 mentions this issue: cmd/cgo: don't let inserted /*line*/ become a // comment

@golang golang locked and limited conversation to collaborators Dec 22, 2019
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