GDB调试（设置断点循环次数）

................
48              while(i < TIME)
49              {
50                      bzero(path, sizeof(char)*SIZE);
(gdb)
51                      bzero(array, sizeof(char)*SIZE);
52
53                      path = strcat(path,RDPATH);
54
55                      itoc(i , array);
56                      fprintf(stderr,"%s \n", array);
57
58                      path = strcat(path,array);
59
60                      fd = fopen(path , "w");
......................
针对这段程序，希望在循环条件i执行到999的时候，在断点处（第54行）停止。
下面代码可达此目的：
(gdb) set $counter = 0
(gdb) break 54 if ++$counter == 999