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#include <assert.h> #include <unistd.h> #include <sys/stat.h> #define OLD "/sandbox/input.txt" #define NEW "/tmp/output.txt" int main() { struct stat st_old; struct stat st_new; assert(0 == stat(OLD, &st_old)); assert(0 == link(OLD, NEW)); assert(0 == stat(NEW, &st_new)); assert(st_old.st_ino == st_new.st_ino); return 0; }