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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4.  
  5. struct test {
  6.         void *ptr;
  7.         char str[300];
  8. };
  9. struct test2 {
  10.         int i;
  11.         char astr[200];
  12. };
  13.  
  14. int main(void)
  15. {
  16.         struct test *p;
  17.         p = malloc(sizeof(struct test));
  18.         p->ptr = malloc(sizeof(struct test2));
  19. 		strcpy(((struct test2 *)(p->ptr))->astr, "hello world");
  20. 		printf("%s\n", ((struct test2 *)(p->ptr))->astr);
  21. 		return 0;
  22. }
Success #stdin #stdout 0s 2380KB
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stdin
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Standard input is empty
stdout
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hello world
https://ideone.com/4xsJiK
language:
C (gcc 8.3)
created:
11 years ago
visibility:
public

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