1 // RUN: %clang_cc1 -fsyntax-only -verify %s 2 typedef long unsigned int __darwin_size_t; 3 typedef long __darwin_ssize_t; 4 typedef __darwin_size_t size_t; 5 typedef __darwin_ssize_t ssize_t; 6 7 struct cmsghdr {}; 8 9 #if 0 10 This code below comes from the following system headers: 11 sys/socket.h:#define CMSG_SPACE(l) (__DARWIN_ALIGN(sizeof(struct 12 cmsghdr)) + __DARWIN_ALIGN(l)) 13 14 i386/_param.h:#define __DARWIN_ALIGN(p) ((__darwin_size_t)((char *)(p) 15 + __DARWIN_ALIGNBYTES) &~ __DARWIN_ALIGNBYTES) 16 #endif 17 18 ssize_t sendFileDescriptor(int fd, void *data, size_t nbytes, int sendfd) { 19 union { 20 char control[(((__darwin_size_t)((char *)(sizeof(struct cmsghdr)) + (sizeof(__darwin_size_t) - 1)) &~ (sizeof(__darwin_size_t) - 1)) + ((__darwin_size_t)((char *)(sizeof(int)) + (sizeof(__darwin_size_t) - 1)) &~ (sizeof(__darwin_size_t) - 1)))]; 21 } control_un; 22 return 0; 23 } 24 25
