c - How does the system knew that an address being accessed is constant or not -

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writing constant variable using pointer giving run time error.

const int i; int *p; void main() {     p = (int*)&i;     *p = 10;         // causes runtime error }

but in windows system running ram itself.

when printed address of const variables , normal variables, can see in different offsets.

how system know address being accessed pointer const one?

strictly speaking, code yields undefined behavior according c-language standard.

in practice, linker has placed variable i in ro section of executable image.

so write-operation *p = 10 resulted in memory-access violation (aka segmentation fault).


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