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  1. #include <sys/types.h>
  2. #include <stdio.h>
  3. #include <unistd.h>
  4. int value = 5;
  5. int main()
  6. {
  7.     pid_t pid;
  8.     pid = fork();
  9.     if (pid == 0) { /* child process */
  10.         printf("j");
  11.         value += 15;
  12.         execlp("/bin/ls", "ls", NULL);
  13.         printf("j");
  14.         return 0;
  15.     }
  16.     else if (pid > 0) { /* parent process */
  17.         wait(NULL);
  18.         printf("PARENT: value = %d",value); /* LINE A */
  19.         return 0;
  20.     }
  21. }
  22.  
Success #stdin #stdout 0.01s 5304KB
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stdin
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Standard input is empty
stdout
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prog
PARENT: value = 5
https://ideone.com/pNTH4d
language:
C (gcc 8.3)
created:
30 days ago
visibility:
public

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