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no error displays if varible re-difined

Hongbing Shen

char xxxx;
char xxxx;//no error displays if varible re-difined
//keil c51 OK

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    char xxxx;
char xxxx;//no error displays if varible re-difined

    An actual redefinition would be treated as an error, but the above isn't one.

    You want to get out your C textbook and read up on the difference between declarations and definitions. Pay special attention to the topic of "tentative definitions".

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    char xxxx;
char xxxx;//no error displays if varible re-difined

    An actual redefinition would be treated as an error, but the above isn't one.

    You want to get out your C textbook and read up on the difference between declarations and definitions. Pay special attention to the topic of "tentative definitions".

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