96 lines
2.0 KiB
Plaintext
96 lines
2.0 KiB
Plaintext
/* ===== 模块8：综合 =====
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* test17_integration — 综合测试
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* 难度：3/5
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* 验证点：多特性组合——指针 + 结构体 + 函数 + 循环 + 数组 + 切片
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*/
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#[extern("vm")] fn vm_printf(fmt: *u8, ...) void;
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type Point = struct {
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x: i32,
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y: i32,
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}
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/* 计算点积 */
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fn dot(a: *Point, b: *Point) i32 {
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ret a.x * b.x + a.y * b.y;
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}
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/* 递归斐波那契 */
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fn fib(n: i32) i32 {
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if n <= 1 { ret n; }
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ret fib(n - 1) + fib(n - 2);
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}
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fn main() i32 {
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/* 综合：指针 + 结构体 + 函数 */
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var p1: Point;
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p1.x = 3;
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p1.y = 4;
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var p2: Point;
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p2.x = 5;
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p2.y = 6;
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var d := dot(&p1, &p2);
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/* 3*5 + 4*6 = 15 + 24 = 39 */
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if d != 39 { ret 1; }
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/* 综合：数组 + while 循环 */
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var arr: [5]i32 = [5]i32{1, 2, 3, 4, 5};
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var sum: i32 = 0;
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var i: i32 = 0;
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while i < 5 {
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sum = sum + arr[i];
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i = i + 1;
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}
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if sum != 15 { ret 2; }
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/* 综合：切片 + for */
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var sl: []i32 = arr[1..4];
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var sl_sum: i32 = 0;
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for sl as val {
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sl_sum = sl_sum + val;
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}
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if sl_sum != 9 { ret 3; } /* 2+3+4 */
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/* 综合：递归 */
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var f := fib(10);
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if f != 55 { ret 4; }
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/* 综合：loop/break/continue */
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var n: i32 = 0;
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var count: i32 = 0;
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loop {
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n = n + 1;
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if n == 2 { continue; }
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count = count + 1;
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if n >= 5 { break; }
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}
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/* 执行 n=1,3,4,5 共 4 次 (n=2 被 continue) */
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if count != 4 { ret 5; }
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/* 综合：指针修改结构体 */
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var pp: *Point = &p1;
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pp.x = 10;
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pp.y = 20;
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if p1.x != 10 { ret 6; }
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if p1.y != 20 { ret 7; }
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/* 综合：嵌套控制流 */
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var mat: [3]i32 = [3]i32{1, 2, 3};
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var outer_sum: i32 = 0;
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var j: i32 = 0;
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while j < 3 {
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var k: i32 = 0;
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while k < 3 {
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if mat[j] > mat[k] {
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outer_sum = outer_sum + 1;
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}
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k = k + 1;
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}
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j = j + 1;
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}
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if outer_sum != 3 { ret 8; }
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ret 0;
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}
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