mirror of
https://github.com/vlang/v.git
synced 2023-08-10 21:13:21 +03:00
70 lines
1.3 KiB
V
70 lines
1.3 KiB
V
fn test_shift_operators() {
|
|
|
|
// check that shift works with all integer types
|
|
// as the right-hand side operand
|
|
a := 1
|
|
b := 1024
|
|
i := 10
|
|
|
|
assert b == a << i8(i)
|
|
assert b == a << byte(i)
|
|
assert b == a << i16(i)
|
|
assert b == a << u16(i)
|
|
assert b == a << int(i)
|
|
assert b == a << u32(i)
|
|
assert b == a << i64(i)
|
|
assert b == a << u64(i)
|
|
|
|
assert a == b >> i8(i)
|
|
assert a == b >> byte(i)
|
|
assert a == b >> i16(i)
|
|
assert a == b >> u16(i)
|
|
assert a == b >> int(i)
|
|
assert a == b >> u32(i)
|
|
assert a == b >> i64(i)
|
|
assert a == b >> u64(i)
|
|
|
|
// check that shift operation result type is
|
|
// the same as the type of the left-hand side operand
|
|
mut c := u64(0)
|
|
d := u64(1)
|
|
c = d << i8(63)
|
|
assert c == 9223372036854775808
|
|
|
|
// check that shift-assign works with all types
|
|
// of integers on the right-hand side
|
|
mut e := 1
|
|
e <<= i8(i)
|
|
assert e == b
|
|
e >>= i8(i)
|
|
assert e == a
|
|
e <<= i16(i)
|
|
assert e == b
|
|
e >>= i16(i)
|
|
assert e == a
|
|
e <<= int(i)
|
|
assert e == b
|
|
e >>= int(i)
|
|
assert e == a
|
|
e <<= i64(i)
|
|
assert e == b
|
|
e >>= i64(i)
|
|
assert e == a
|
|
e <<= byte(i)
|
|
assert e == b
|
|
e >>= byte(i)
|
|
assert e == a
|
|
e <<= u16(i)
|
|
assert e == b
|
|
e >>= u16(i)
|
|
assert e == a
|
|
e <<= u32(i)
|
|
assert e == b
|
|
e >>= u32(i)
|
|
assert e == a
|
|
e <<= u64(i)
|
|
assert e == b
|
|
e >>= u64(i)
|
|
assert e == a
|
|
}
|