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v/vlib/builtin/int_test.v

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const (
a = 3
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u = u64(1)
)
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fn test_const() {
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b := (true && true) || false
assert b == true
assert a == 3
assert u == u64(1)
assert u == 1 // make sure this works without the cast
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}
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fn test_str_methods() {
assert i8(1).str() == '1'
assert i8(-1).str() == '-1'
assert i16(1).str() == '1'
assert i16(-1).str() == '-1'
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assert int(1).str() == '1'
assert int(-1).str() == '-1'
assert int(2147483647).str() == '2147483647'
assert int(2147483648).str() == '-2147483648'
assert int(-2147483648).str() == '-2147483648'
assert i64(1).str() == '1'
assert i64(-1).str() == '-1'
assert u16(1).str() == '1'
assert u16(-1).str() == '65535'
assert u32(1).str() == '1'
assert u32(-1).str() == '4294967295'
assert u64(1).str() == '1'
assert u64(-1).str() == '18446744073709551615'
assert voidptr(-1).str() == 'ffffffffffffffff'
assert voidptr(1).str() == '1'
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assert (&byte(-1)).str() == 'ffffffffffffffff'
assert (&byte(1)).str() == '1'
assert byteptr(-1).str() == 'ffffffffffffffff'
assert byteptr(1).str() == '1'
}
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fn test_and_precendence() {
assert (2 & 0 == 0) == ((2 & 0) == 0)
assert (2 & 0 != 0) == ((2 & 0) != 0)
assert (0 & 0 >= 0) == ((0 & 0) >= 0)
assert (0 & 0 <= 0) == ((0 & 0) <= 0)
assert (0 & 0 < 1) == ((0 & 0) < 1)
assert (1 & 2 > 0) == ((1 & 2) > 0)
}
fn test_or_precendence() {
assert (1 | 0 == 0) == ((1 | 0) == 0)
assert (1 | 0 != 1) == ((1 | 0) != 1)
assert (1 | 0 >= 2) == ((1 | 0) >= 2)
assert (1 | 0 <= 0) == ((1 | 0) <= 0)
assert (1 | 0 < 0) == ((1 | 0) < 0)
assert (1 | 0 > 1) == ((1 | 0) > 1)
}
fn test_xor_precendence() {
assert (1 ^ 0 == 2) == ((1 ^ 0) == 2)
assert (1 ^ 0 != 2) == ((1 ^ 0) != 2)
assert (1 ^ 0 >= 0) == ((1 ^ 0) >= 0)
assert (1 ^ 0 <= 1) == ((1 ^ 0) <= 1)
assert (1 ^ 0 < 0) == ((1 ^ 0) < 0)
assert (1 ^ 0 > 1) == ((1 ^ 0) > 1)
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}
fn test_left_shift_precendence() {
assert (2 << 4 | 3) == ((2 << 4) | 3)
assert (2 << 4 | 3) != (2 << (4 | 3))
}
fn test_right_shift_precendence() {
assert (256 >> 4 | 3) == ((256 >> 4) | 3)
assert (256 >> 4 | 3) != (256 >> (4 | 3))
}
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fn test_i8_print() {
b := i8(0)
println(b)
c := i16(7)
println(c)
d := u16(6)
println(d)
assert true
}
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/*
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fn test_cmp() {
assert 1 2
assert 1 2
assert 1 0
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}
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*/
type MyInt = int
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fn test_int_alias() {
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i := MyInt(2)
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assert i + 10 == 12
}
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fn test_hex() {
x := u64(10)
assert x.hex() == 'a'
b := 1234
assert b.hex() == '4d2'
b1 := -1
assert b1.hex() == 'ffffffff'
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// unsigned tests
assert u8(12).hex() == '0c'
assert u8(255).hex() == 'ff'
assert u16(65535).hex() == 'ffff'
assert u32(-1).hex() == 'ffffffff'
assert u64(-1).hex() == 'ffffffffffffffff'
// signed tests
assert i8(-1).hex() == 'ff'
assert i8(12).hex() == '0c'
assert i16(32767).hex() == '7fff'
assert int(2147483647).hex() == '7fffffff'
assert i64(9223372036854775807).hex() == '7fffffffffffffff'
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}
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fn test_bin() {
x1 := 0b10
assert x1 == 2
x2 := 0b10101010
assert x2 == 0xAA
x3 := -0b0000001
assert x3 == -1
x4 := 0b11111111
assert x4 == 255
x5 := byte(0b11111111)
assert x5 == 255
x6 := char(0b11111111)
// C.char is unsigned on arm64, but signed on amd64, by default
$if arm64 {
assert int(x6) == 255
} $else {
assert int(x6) == -1
}
x7 := 0b0
assert x7 == 0
x8 := -0b0
assert x8 == 0
}
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fn test_oct() {
x1 := 0o12
assert x1 == 10
x2 := 00000o350
assert x2 == 232
x3 := 000o00073
assert x3 == 59
x4 := 00000000
assert x4 == 0
x5 := 00000195
assert x5 == 195
x6 := -0o744
assert x6 == -484
x7 := -000o000042
assert x7 == -34
x8 := -0000112
assert x8 == -112
x9 := -000
assert x9 == 0
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}
fn test_num_separator() {
// int
assert 100_000_0 == 1000000
assert -2_23_4_6 == -22346
// bin
assert 0b0_11 == 3
assert -0b0_100 == -4
// oct
assert 0o1_73 == 123
assert -0o17_5 == -125
assert -0o175 == -125
// hex
assert 0xFF == 255
assert 0xF_F == 255
// f32 or f64
assert 312_2.55 == 3122.55
assert 312_2.55 == 3122.55
}
fn test_int_decl() {
x1 := 0
x2 := 1333
x3 := -88955
x4 := 2000000000
x5 := -1999999999
assert typeof(x1).name == 'int'
assert typeof(x2).name == 'int'
assert typeof(x3).name == 'int'
assert typeof(x4).name == 'int'
assert typeof(x5).name == 'int'
x7 := u64(-321314588900011)
assert typeof(x7).name == 'u64'
}
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fn test_int_to_hex() {
// array hex
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st := [byte(`V`), `L`, `A`, `N`, `G`]
assert st.hex() == '564c414e47'
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assert st.hex().len == 10
st1 := [byte(0x41)].repeat(100)
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assert st1.hex() == '41'.repeat(100)
// --- int to hex tests
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c0 := 12
// 8Bit
assert byte(0).hex() == '00'
assert byte(c0).hex() == '0c'
assert i8(c0).hex() == '0c'
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assert byte(127).hex() == '7f'
assert i8(127).hex() == '7f'
assert byte(255).hex() == 'ff'
assert byte(-1).hex() == 'ff'
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// 16bit
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assert u16(0).hex() == '0'
assert i16(c0).hex() == 'c'
assert u16(c0).hex() == 'c'
assert i16(32767).hex() == '7fff'
assert u16(32767).hex() == '7fff'
assert i16(-1).hex() == 'ffff'
assert u16(65535).hex() == 'ffff'
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// 32bit
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assert u32(0).hex() == '0'
assert c0.hex() == 'c'
assert u32(c0).hex() == 'c'
assert 2147483647.hex() == '7fffffff'
assert u32(2147483647).hex() == '7fffffff'
assert (-1).hex() == 'ffffffffffffffff'
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assert u32(4294967295).hex() == 'ffffffff'
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// 64 bit
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assert u64(0).hex() == '0'
assert i64(c0).hex() == 'c'
assert u64(c0).hex() == 'c'
assert i64(9223372036854775807).hex() == '7fffffffffffffff'
assert u64(9223372036854775807).hex() == '7fffffffffffffff'
assert i64(-1).hex() == 'ffffffffffffffff'
assert u64(18446744073709551615).hex() == 'ffffffffffffffff'
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}
fn test_repeat() {
b := byte(`V`)
assert b.repeat(5) == 'VVVVV'
assert b.repeat(1) == b.ascii_str()
assert b.repeat(0) == ''
}