c - Pointer to char array - 


int main( ){         char a[2];     char *p;     p=&a[0];     *(p+5)='g'; }

in above program defined pointer pointing char array array 3 bytes only. let me tell more clearly,for instance let assume char array address 1000 takes upto 1003 bytes, using pointer storing ascii value of 'g' @ 1005 location. okay compiler ? memory static alloacted 1 ? or can used again ? value permanently stored in or no?

you changing random memory location in program. undefined behavior , have random effects on program such segmentation fault.


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