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Int a [5] = {1, 2, 3, 4, 5}; printf ("% d \ n", * (int *) (& a + 1)-2 );, printf % d What is the result of a certain convincing pen question in a certain year? The answer is 4. Why? My understanding (do not know if it is correct ): & A is an

I believe many cppers, like me, have been hovering in pointers and references for a long time. We often mix pointers and references, especially when we see the usage listed in the question, which really hurt our brains. Later, I used it in the

Summing up, int (m) Zerofill, plus Zerofill after M to show a little bit of effect, such as int (3) Zerofill, you inserted into the database is 10, then the actual insert is 010, that is, add a 0 in front. if int (3) and int (10) Without Zerofill,

Int main () { Int * A [5]; INT (* B) [5]; Int I = 2, j = 3, K = 4; B =; A [0] = & I; Printf ("% d/N", * a, * a [0], I ); Printf ("% d/N", a, a [0], & I ); Printf ("% d", B ); B ++; Printf ("% d/N", B ); Getchar (); }   [] The priority

The difference between a MySQL int (3) and an int (11) Summing up, int (m) Zerofill, plus zerofill after M to show a little bit of effect, such as int (3) Zerofill, you insert into the database is 10, then the actual insertion of 010, that is, add

Summing up, int (m) Zerofill, plus Zerofill after M to show a little bit of effect, such as int (3) Zerofill, you inserted into the database is 10, then the actual insert is 010, that is, add a 0 in front. if int (3) and int (10) Without Zerofill,

Mysql int (3) and int (11) Differences, mysqlint Difference between mysql int (3) and int (11) In summary, int (M) zerofill, followed by zerofill, then M shows a little effect. For example, if int (3) zerofill is inserted into the database as 10, it

Difference between mysql int (3) and int (11), mysqlint In summary, int (M) zerofill, followed by zerofill, then M shows a little effect. For example, if int (3) zerofill is inserted into the database as 10, it is actually inserted as 010, that is,

1 start with const int IYou know, when declaring a variable, int I is like this; this I may be re-assigned to it. As follows:Int I = 0;//...I = 20; // The value is assigned again here.However, one day my program may need such a variable (temporarily

Preface As for pointers, we first need to figure out four points: the pointer type, the pointer to the type, the value of the pointer, and the value the pointer points to. If this is not very clear, please refer to here URL: