[506d4f0] | 1 | #include <fstream.hfa>
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| 2 | #include <stdlib.hfa>
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| 3 |
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| 4 | int main() {
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[097e2b0] | 5 | // initialize basic structure
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| 6 | struct S {
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| 7 | int i, j, k;
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| 8 | };
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[506d4f0] | 9 | void ?{}( S & s ) { s.i = 1, s.k = 2; } // default constructor
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| 10 | void ?{}( S & s, int i, int k ) { s.i = i, s.k = k; } // 2 parameter constructor
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| 11 | void ?{}( S & s, S c ) { /* s @= c */ s.[i,j,k] = c.[i,j,k]; } // copy constructor
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| 12 | void ^?{}( S & s ) { s.i = 0, s.k = 0; } // default destructor
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| 13 | void ^?{}( S & s, int i ) { s.i = i, s.k = i; } // 1 parameter destructor
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[097e2b0] | 14 | {
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[506d4f0] | 15 | S s1; // default constructor
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| 16 | S s2 = { 3, 7 }; // 2 parameter constructor
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| 17 | S s3 @= { .k:3, .i:7 }; // 2 parameter C initialization
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| 18 | ?{}( s3, 2, 5 ); // explicit 2 parameter constructor
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| 19 | ^?{}( s1 ); // explicit call to default destructor
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[097e2b0] | 20 | } // implicit call to default destructor for s2, explicit call s1, no call for s3
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[506d4f0] | 21 | S s4 @= {}; // no default construction
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| 22 | (s4){ 2, 5 }; // explicit 2 parameter constructor
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| 23 | ^s4{ 3 }; // explicit call to 1 parameter destructor
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[097e2b0] | 24 |
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| 25 | // initialize pointer to a basic structure
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| 26 |
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[506d4f0] | 27 | void ?{}( S *& s ) { s = malloc(); s->i = 1, (*s).k = 2; } // default constructor
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| 28 | void ?{}( S *& s, int i, int k ) { s = malloc(); (*s).i = i, (*s).k = k; } // 2 parameter constructor
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| 29 | void ^?{}( S *& s ) { (*s).i = 0, (*s).k = 0; free( s ); &s = 0p; } // default destructor
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[097e2b0] | 30 | {
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[506d4f0] | 31 | S * ps1; // default constructor
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| 32 | S * ps2 = { 3, 7 }; // 2 parameter constructor
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| 33 | sout | ps1 | ps2;
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| 34 |
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| 35 | S * ps3 @= 0p; // C initialization
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| 36 | S * ps4 @= { 3 }; // no default construction
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| 37 | sout | ps3 | ps4;
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[097e2b0] | 38 |
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[506d4f0] | 39 | ?{}( ps3, 2, 5 ); // explicit 2 parameter constructor
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| 40 | (ps4){ 2, 5 }; // explicit 2 parameter constructor
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| 41 | sout | ps3 | ps4;
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| 42 |
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| 43 | ^?{}( ps3 ); // explicit call to default destructor
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| 44 | ^ps4{}; // explicit call to default destructor
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| 45 | sout | ps3 | ps4;
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| 46 | } // implicit call to default destructor for ps2 and ps1, checks ordering of explicit destructor calls
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[097e2b0] | 47 |
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| 48 | // initialize complex structure
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| 49 |
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| 50 | struct T {
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| 51 | struct S s;
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| 52 | };
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| 53 |
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[506d4f0] | 54 | void ?{}( T & t ) {} // default constructor => implicitly call constructor for field s
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| 55 | void ?{}( T & t, int i, int k ) { (t.s){ i, k }; } // 2 parameter constructor => explicitly call constructor for field s
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| 56 | void ?{}( T & t, S c ) { (t.s){ c }; }// 1 parameter constructor => explicitly call copy constructor for field s
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| 57 | void ^?{}( T & s ) {} // destructor => implicitly call destructor for field s
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| 58 | void ^?{}( T & s, int i ) {}// destructor => implicitly call destructor for field s
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[097e2b0] | 59 | {
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[506d4f0] | 60 | S s; // default constructor
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| 61 | T t1; // default constructor
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| 62 | T t2 = { s }; // 1 parameter constructor
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| 63 | ^?{}( t1, 3 ); // explicit call to default destructor => implicit call to t1.s's destructor
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| 64 | T t3; // default constructor
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| 65 | T t4 @= { { 1, 3 } }; // C initialization
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| 66 | (t4){ 2, 5 }; // explicit 2 parameter constructor
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[097e2b0] | 67 | } // implicit call to default destructor for t2 and implicit call for s;
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| 68 |
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| 69 | T *pt = malloc(){ 3, 4 }; // common usage
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| 70 | } // implicit call to default destructor for t3
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