38 lines
1.1 KiB
Zig
38 lines
1.1 KiB
Zig
const __modti3 = @import("modti3.zig").__modti3;
|
|
const testing = @import("std").testing;
|
|
|
|
fn test__modti3(a: i128, b: i128, expected: i128) void {
|
|
const x = __modti3(a, b);
|
|
testing.expect(x == expected);
|
|
}
|
|
|
|
test "modti3" {
|
|
test__modti3(0, 1, 0);
|
|
test__modti3(0, -1, 0);
|
|
test__modti3(5, 3, 2);
|
|
test__modti3(5, -3, 2);
|
|
test__modti3(-5, 3, -2);
|
|
test__modti3(-5, -3, -2);
|
|
|
|
test__modti3(0x8000000000000000, 1, 0x0);
|
|
test__modti3(0x8000000000000000, -1, 0x0);
|
|
test__modti3(0x8000000000000000, 2, 0x0);
|
|
test__modti3(0x8000000000000000, -2, 0x0);
|
|
test__modti3(0x8000000000000000, 3, 2);
|
|
test__modti3(0x8000000000000000, -3, 2);
|
|
|
|
test__modti3(make_ti(0x8000000000000000, 0), 1, 0x0);
|
|
test__modti3(make_ti(0x8000000000000000, 0), -1, 0x0);
|
|
test__modti3(make_ti(0x8000000000000000, 0), 2, 0x0);
|
|
test__modti3(make_ti(0x8000000000000000, 0), -2, 0x0);
|
|
test__modti3(make_ti(0x8000000000000000, 0), 3, -2);
|
|
test__modti3(make_ti(0x8000000000000000, 0), -3, -2);
|
|
}
|
|
|
|
fn make_ti(high: u64, low: u64) i128 {
|
|
var result: u128 = high;
|
|
result <<= 64;
|
|
result |= low;
|
|
return @bitCast(i128, result);
|
|
}
|