llvm-project/clang/test/Sema/darwin-align-cast.c

25 lines
861 B
C

// RUN: clang-cc -fsyntax-only -verify %s
typedef long unsigned int __darwin_size_t;
typedef long __darwin_ssize_t;
typedef __darwin_size_t size_t;
typedef __darwin_ssize_t ssize_t;
struct cmsghdr {};
#if 0
This code below comes from the following system headers:
sys/socket.h:#define CMSG_SPACE(l) (__DARWIN_ALIGN(sizeof(struct
cmsghdr)) + __DARWIN_ALIGN(l))
i386/_param.h:#define __DARWIN_ALIGN(p) ((__darwin_size_t)((char *)(p)
+ __DARWIN_ALIGNBYTES) &~ __DARWIN_ALIGNBYTES)
#endif
ssize_t sendFileDescriptor(int fd, void *data, size_t nbytes, int sendfd) {
union {
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)))];
} control_un;
return 0;
}