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memtrace

시스템프로그래밍과제 이슈관리

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memtrace's Issues

bonus (free함수)

bonus에서 free를 구현하다가 궁금한 점이 생겨서 질문드립니다.

  1. part1~part3와 bonus에서 아래와 같은 상황도 고려해야하나요?

    void *c=NULL;

    free(c);

ptr가 NULL이면 LOG_FREE를 출력하게 free를 짰는데도 아무것도 안떠서 혹시 이런 상황에는 어떻게 출력이 되어야 하는건지 궁금합니다.

  1. 초기화 하지 않은 variable에 대해 free나 realloc을 해주면 illegal free로 처리하는 것이 맞는지 궁금합니다.

    void *c;

    free(c);

감사합니다!

민철기 사진 민철기 2020-04-04 18:37

  1. free 함수에 NULL을 넣는 경우는 따로 처리하지 않으셔도 됩니다.
  2. 일반적인 경우에 초기화 되지 않았으면 illegal free로 처리되는게 맞습니다.

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