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#include <mlvalues.h> #include <alloc.h> #include "unix.h" value unix_pipe() /* ML */ { int fd[2]; value res; if (pipe(fd) == -1) uerror("pipe", Nothing); res = alloc_tuple(2); Field(res, 0) = Val_int(fd[0]); Field(res, 1) = Val_int(fd[1]); return res; }