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Home/ Questions/Q 6163573
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Editorial Team
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Editorial Team
Asked: May 23, 20262026-05-23T21:50:53+00:00 2026-05-23T21:50:53+00:00

I am defining an array of size 9. but when I access the array

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I am defining an array of size 9. but when I access the array index 10 it is not giving any error.

int main() {
   bool* isSeedPos = new bool[9];
   isSeedPos[10] = true;
}

I expected to get a compiler error, because there is no array element isSeedPos[10] in my array.

Why don’t I get an error?

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  1. Editorial Team
    Editorial Team
    2026-05-23T21:50:54+00:00Added an answer on May 23, 2026 at 9:50 pm

    Use std::vector instead. Some implementations will do bounds checking in debug mode.

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