c++ - Print elements in an array -


possible duplicate:
confused c macro expansion , integer arithmetic
a riddle (in c)

the output of following c program print elements in array. when run, doesn't so.

  #include<stdio.h>    #define total_elements (sizeof(array) / sizeof(array[0]))   int array[] = {23,34,12,17,204,99,16};    int main()   {       int d;        for(d=-1;d <= (total_elements-2);d++)           printf("%d\n",array[d+1]);        return 0;   }

why that?

this fails because sizeof returning value of type size_t, unsigned. causes comparison promote -1 unsigned, large value , make comparison fail.

you should receive warnings sign mismatch.


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