46 lines
1.1 KiB
Plaintext
46 lines
1.1 KiB
Plaintext
import t, c
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from stdint import *
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import stdio
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# 模块级全局定长数组（rawarray 复刻 t.CArray）
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g_arr: rawarray[t.CInt, 4] = [10, 20, 30, 40]
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# struct 内嵌定长数组字段
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class Ctx:
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state: rawarray[uint32, 5]
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buf: rawarray[uint8, 64]
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def main() -> t.CInt | t.CExport:
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# 1) 全局数组读取
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stdio.printf("1 g_arr[0]=%d g_arr[3]=%d (expect 10 40)\n", g_arr[0], g_arr[3])
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# 2) 局部定长数组（写 + 读）
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loc: rawarray[uint32, 3] = [0, 0, 0]
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loc[1] = 7
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stdio.printf("2 loc[1]=%d (expect 7)\n", loc[1])
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# 3) struct 内嵌数组字段
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ctx: Ctx
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ctx.state[0] = 100
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ctx.state[4] = 400
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ctx.buf[0] = 65
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stdio.printf("3 ctx.state[0]=%d ctx.state[4]=%d ctx.buf[0]=%d (expect 100 400 65)\n",
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ctx.state[0], ctx.state[4], int(ctx.buf[0]))
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# 4) 参数数组衰减（CArray 形参 → 元素指针）+ sizeof
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total: int = sum_arr(loc, 3)
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stdio.printf("4 sum=%d (expect 7)\n", total)
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return 0
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def sum_arr(vals: rawarray[uint32, 3], n: int) -> int:
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s: int = 0
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i: int
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for i in range(n):
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s = s + int(vals[i])
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return s
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