70 lines
1.3 KiB
V
70 lines
1.3 KiB
V
fn test_shift_operators() {
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// check that shift works with all integer types
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// as the right-hand side operand
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a := 1
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b := 1024
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i := 10
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assert b == a << i8(i)
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assert b == a << byte(i)
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assert b == a << i16(i)
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assert b == a << u16(i)
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assert b == a << int(i)
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assert b == a << u32(i)
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assert b == a << i64(i)
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assert b == a << u64(i)
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assert a == b >> i8(i)
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assert a == b >> byte(i)
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assert a == b >> i16(i)
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assert a == b >> u16(i)
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assert a == b >> int(i)
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assert a == b >> u32(i)
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assert a == b >> i64(i)
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assert a == b >> u64(i)
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// check that shift operation result type is
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// the same as the type of the left-hand side operand
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mut c := u64(0)
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d := u64(1)
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c = d << i8(63)
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assert c == 9223372036854775808
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// check that shift-assign works with all types
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// of integers on the right-hand side
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mut e := 1
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e <<= i8(i)
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assert e == b
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e >>= i8(i)
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assert e == a
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e <<= i16(i)
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assert e == b
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e >>= i16(i)
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assert e == a
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e <<= int(i)
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assert e == b
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e >>= int(i)
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assert e == a
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e <<= i64(i)
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assert e == b
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e >>= i64(i)
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assert e == a
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e <<= byte(i)
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assert e == b
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e >>= byte(i)
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assert e == a
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e <<= u16(i)
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assert e == b
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e >>= u16(i)
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assert e == a
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e <<= u32(i)
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assert e == b
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e >>= u32(i)
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assert e == a
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e <<= u64(i)
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assert e == b
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e >>= u64(i)
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assert e == a
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}
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