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  1. #include<malloc.h>
  2. #include<stdlib.h>
  3.  
  4. int main()
  5. {
  6. mallopt(M_CHECK_ACTION, 0);
  7.  
  8. int* i = malloc(sizeof(*i));
  9.  
  10. free(i);
  11. free(i);
  12.  
  13. return 0;
  14. }
Success #stdin #stdout 0.01s 1848KB
stdin
Standard input is empty
stdout
Standard output is empty