const syscall.F_DUPFD_CLOEXEC

3 uses

	syscall (current package)
		zerrors_darwin_amd64.go#L235: 	F_DUPFD_CLOEXEC                   = 0x43

	internal/poll
		fd_unix.go#L484: 	if syscall.F_DUPFD_CLOEXEC != 0 && atomic.LoadInt32(&tryDupCloexec) == 1 {
		fd_unix.go#L485: 		r0, e1 := fcntl(fd, syscall.F_DUPFD_CLOEXEC, 0)

The pages are generated with Golds v0.3.2-preview. (GOOS=darwin GOARCH=amd64)
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