xstatus           375 user/usertests.c   int pid, xstatus;
xstatus           420 user/usertests.c   wait(&xstatus);
xstatus           422 user/usertests.c   exit(xstatus);
xstatus           452 user/usertests.c   int pid, xstatus;
xstatus           474 user/usertests.c   wait(&xstatus);
xstatus           475 user/usertests.c   exit(xstatus);
xstatus           492 user/usertests.c   int pid, xstatus;
xstatus           516 user/usertests.c   wait(&xstatus);
xstatus           517 user/usertests.c   exit(xstatus);
xstatus           684 user/usertests.c   int fd, xstatus, pid;
xstatus           711 user/usertests.c   if (wait(&xstatus) != pid) {
xstatus           714 user/usertests.c   if(xstatus != 0)
xstatus           715 user/usertests.c     exit(xstatus);
xstatus           741 user/usertests.c   int fds[2], pid, xstatus;
xstatus           783 user/usertests.c     wait(&xstatus);
xstatus           784 user/usertests.c     exit(xstatus);
xstatus           990 user/usertests.c   int xstatus;
xstatus           992 user/usertests.c     wait(&xstatus);
xstatus           993 user/usertests.c     if(xstatus != 0) {
xstatus          1081 user/usertests.c     int xstatus;
xstatus          1082 user/usertests.c     wait(&xstatus);
xstatus          1083 user/usertests.c     if(xstatus == -1){
xstatus          1088 user/usertests.c     exit(xstatus);
xstatus          1120 user/usertests.c     int xstatus;
xstatus          1121 user/usertests.c     wait(&xstatus);
xstatus          1122 user/usertests.c     if(xstatus != 0)
xstatus          1123 user/usertests.c       exit(xstatus);
xstatus          1189 user/usertests.c   int xstatus;
xstatus          1191 user/usertests.c     wait(&xstatus);
xstatus          1192 user/usertests.c     if(xstatus != 0)
xstatus          1193 user/usertests.c       exit(xstatus);
xstatus          1256 user/usertests.c   int xstatus;
xstatus          1258 user/usertests.c     wait(&xstatus);
xstatus          1259 user/usertests.c     if(xstatus != 0)
xstatus          1428 user/usertests.c       int xstatus;
xstatus          1429 user/usertests.c       wait(&xstatus);
xstatus          1430 user/usertests.c       if(xstatus != 0)
xstatus          2003 user/usertests.c   int i, pid, xstatus;
xstatus          2029 user/usertests.c   wait(&xstatus);
xstatus          2030 user/usertests.c   if(xstatus == 1){
xstatus          2059 user/usertests.c   wait(&xstatus);
xstatus          2060 user/usertests.c   exit(xstatus);
xstatus          2140 user/usertests.c     int xstatus;
xstatus          2141 user/usertests.c     wait(&xstatus);
xstatus          2142 user/usertests.c     if(xstatus != -1)  // did kernel kill child?
xstatus          2164 user/usertests.c     int xstatus;
xstatus          2165 user/usertests.c     wait(&xstatus);
xstatus          2166 user/usertests.c     if(xstatus != -1)  // did kernel kill child?
xstatus          2177 user/usertests.c   int i, xstatus;
xstatus          2235 user/usertests.c   wait(&xstatus);
xstatus          2236 user/usertests.c   if(xstatus != -1 && xstatus != 2)
xstatus          2306 user/usertests.c   int pid, fd, xstatus;
xstatus          2330 user/usertests.c   wait(&xstatus);
xstatus          2331 user/usertests.c   if(xstatus != 0)
xstatus          2332 user/usertests.c     exit(xstatus);
xstatus          2412 user/usertests.c   int xstatus;
xstatus          2425 user/usertests.c   wait(&xstatus);
xstatus          2426 user/usertests.c   if(xstatus == -1)  // kernel killed child?
xstatus          2429 user/usertests.c     exit(xstatus);
xstatus          2438 user/usertests.c   int xstatus;
xstatus          2453 user/usertests.c     wait(&xstatus);
xstatus          2454 user/usertests.c     if(xstatus == 0){
xstatus          2962 user/usertests.c   int xstatus;
xstatus          2973 user/usertests.c     wait(&xstatus);
xstatus          2974 user/usertests.c     if(xstatus != 0) 
xstatus          2978 user/usertests.c     return xstatus == 0;