:let n=100 | g/while/s/d/=n / | let n=n+1
before
10 void *thread_function_1(void *arg) {
11 int i;
12 while(1)
13 {
14 printf("Thread 1 says hi!
");
15 g_counter += 1;
16 sleep(1);
17 }
18 return NULL;
19 }
20
21 void *thread_function_2(void *arg) {
22 int i;
23
24 while(1)
25 {
26 printf("Thread 2 says hi!
");
27 g_counter += 2;
28 sleep(1);
29 }
30 return NULL;
31 }
32
33 void *thread_function_3(void *arg) {
34 int i;
35
36 while(1)
37 {
38 printf("Thread 3 says hi!
");
39 g_counter += 2;
40 sleep(1);
41 }
42 return NULL;
after：
10 void *thread_function_1(void *arg) {
11 int i;
12 while(1)
13 {
14 printf("Thread 1 says hi!
");
15 g_counter += 1;
16 sleep(1);
17 }
18 return NULL;
19 }
20
21 void *thread_function_2(void *arg) {
22 int i;
23
24 while(1)
25 {
26 printf("Thread 2 says hi!
");
27 g_counter += 2;
28 sleep(1);
29 }
30 return NULL;
31 }
32
33 void *thread_function_3(void *arg) {
34 int i;
35
36 while(1)
37 {
38 printf("Thread 3 says hi!
");
39 g_counter += 2;
40 sleep(1);
41 }
42 return NULL;