初步清理 t. 类型异味
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import stdio
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import t, c
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# ============================================================
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# 联合体（t.CUnion）含浮点字段
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# ============================================================
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class DataUnion(t.CUnion):
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i: t.CInt
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f: t.CFloat
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l: t.CInt64T
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# ============================================================
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# 主函数
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# ============================================================
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def float_test() -> int:
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# ============================================================
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# 测试 1: 基本浮点变量（float / double）
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# ============================================================
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f: t.CFloat = 3.14
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stdio.printf("float: f=%f\n", f)
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d: t.CDouble = 3.141592653589793
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stdio.printf("double: d=%lf\n", d)
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# 重新赋值
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f = 2.5
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stdio.printf("float: f=%f\n", f)
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# ============================================================
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# 测试 2: 联合体浮点字段
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# ============================================================
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u: DataUnion
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u.f = 3.14
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stdio.printf("union: u.f=%f\n", u.f)
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# 写入 i 字段后，f 的值已被覆盖
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u.i = 42
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stdio.printf("union: u.i=%d (after f overwritten)\n", u.i)
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# ============================================================
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# 测试 3: 联合体共享内存验证（float 与 int 共享）
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# ============================================================
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u2: DataUnion
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u2.i = 0
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u2.f = 1.0
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# 写入 f 后，i 的值应不再是 0
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if u2.i != 0:
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stdio.printf("union: float overwrites int verified\n")
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# ============================================================
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# 测试 4: 浮点算术运算（fadd/fsub/fmul/fdiv/frem）
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# ============================================================
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a: t.CFloat = 1.5
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b: t.CFloat = 2.5
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stdio.printf("arith: %.2f + %.2f = %.2f\n", a, b, a + b)
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stdio.printf("arith: %.2f - %.2f = %.2f\n", a, b, a - b)
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stdio.printf("arith: %.2f * %.2f = %.2f\n", a, b, a * b)
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stdio.printf("arith: %.2f / %.2f = %.2f\n", a, b, a / b)
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# ============================================================
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# 测试 5: double 算术运算
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# ============================================================
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x: t.CDouble = 10.0
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y: t.CDouble = 3.0
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stdio.printf("arith: %.4lf + %.4lf = %.4lf\n", x, y, x + y)
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stdio.printf("arith: %.4lf - %.4lf = %.4lf\n", x, y, x - y)
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stdio.printf("arith: %.4lf * %.4lf = %.4lf\n", x, y, x * y)
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stdio.printf("arith: %.4lf / %.4lf = %.4lf\n", x, y, x / y)
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# ============================================================
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# 测试 6: 浮点取模 (frem)
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# ============================================================
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stdio.printf("arith: 10.0 %% 3.0 = %.4lf\n", x % y)
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# ============================================================
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# 测试 7: int 与 float 混合运算（int 自动转 float）
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# ============================================================
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n: t.CInt = 3
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stdio.printf("arith: %d + %.2f = %.2f\n", n, a, n + a)
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return 0
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import stdio
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import t, c
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# ============================================================
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# 联合体（t.CUnion）含浮点字段
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# ============================================================
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class DataUnion(t.CUnion):
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i: int
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f: t.CFloat
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l: int64
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# ============================================================
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# 主函数
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# ============================================================
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def float_test() -> int:
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# ============================================================
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# 测试 1: 基本浮点变量（float / double）
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# ============================================================
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f: t.CFloat = 3.14
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stdio.printf("float: f=%f\n", f)
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d: t.CDouble = 3.141592653589793
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stdio.printf("double: d=%lf\n", d)
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# 重新赋值
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f = 2.5
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stdio.printf("float: f=%f\n", f)
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# ============================================================
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# 测试 2: 联合体浮点字段
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# ============================================================
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u: DataUnion
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u.f = 3.14
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stdio.printf("union: u.f=%f\n", u.f)
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# 写入 i 字段后，f 的值已被覆盖
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u.i = 42
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stdio.printf("union: u.i=%d (after f overwritten)\n", u.i)
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# ============================================================
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# 测试 3: 联合体共享内存验证（float 与 int 共享）
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# ============================================================
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u2: DataUnion
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u2.i = 0
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u2.f = 1.0
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# 写入 f 后，i 的值应不再是 0
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if u2.i != 0:
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stdio.printf("union: float overwrites int verified\n")
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# ============================================================
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# 测试 4: 浮点算术运算（fadd/fsub/fmul/fdiv/frem）
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# ============================================================
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a: t.CFloat = 1.5
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b: t.CFloat = 2.5
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stdio.printf("arith: %.2f + %.2f = %.2f\n", a, b, a + b)
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stdio.printf("arith: %.2f - %.2f = %.2f\n", a, b, a - b)
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stdio.printf("arith: %.2f * %.2f = %.2f\n", a, b, a * b)
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stdio.printf("arith: %.2f / %.2f = %.2f\n", a, b, a / b)
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# ============================================================
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# 测试 5: double 算术运算
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# ============================================================
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x: t.CDouble = 10.0
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y: t.CDouble = 3.0
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stdio.printf("arith: %.4lf + %.4lf = %.4lf\n", x, y, x + y)
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stdio.printf("arith: %.4lf - %.4lf = %.4lf\n", x, y, x - y)
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stdio.printf("arith: %.4lf * %.4lf = %.4lf\n", x, y, x * y)
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stdio.printf("arith: %.4lf / %.4lf = %.4lf\n", x, y, x / y)
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# ============================================================
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# 测试 6: 浮点取模 (frem)
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# ============================================================
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stdio.printf("arith: 10.0 %% 3.0 = %.4lf\n", x % y)
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# ============================================================
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# 测试 7: int 与 float 混合运算（int 自动转 float）
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# ============================================================
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n: int = 3
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stdio.printf("arith: %d + %.2f = %.2f\n", n, a, n + a)
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return 0
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