zig/lib/compiler_rt/modti3_test.zig
mlugg f26dda2117 all: migrate code to new cast builtin syntax
Most of this migration was performed automatically with `zig fmt`. There
were a few exceptions which I had to manually fix:

* `@alignCast` and `@addrSpaceCast` cannot be automatically rewritten
* `@truncate`'s fixup is incorrect for vectors
* Test cases are not formatted, and their error locations change
2023-06-24 16:56:39 -07:00

38 lines
1.2 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);
try testing.expect(x == expected);
}
test "modti3" {
try test__modti3(0, 1, 0);
try test__modti3(0, -1, 0);
try test__modti3(5, 3, 2);
try test__modti3(5, -3, 2);
try test__modti3(-5, 3, -2);
try test__modti3(-5, -3, -2);
try test__modti3(0x8000000000000000, 1, 0x0);
try test__modti3(0x8000000000000000, -1, 0x0);
try test__modti3(0x8000000000000000, 2, 0x0);
try test__modti3(0x8000000000000000, -2, 0x0);
try test__modti3(0x8000000000000000, 3, 2);
try test__modti3(0x8000000000000000, -3, 2);
try test__modti3(make_ti(0x8000000000000000, 0), 1, 0x0);
try test__modti3(make_ti(0x8000000000000000, 0), -1, 0x0);
try test__modti3(make_ti(0x8000000000000000, 0), 2, 0x0);
try test__modti3(make_ti(0x8000000000000000, 0), -2, 0x0);
try test__modti3(make_ti(0x8000000000000000, 0), 3, -2);
try 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 @as(i128, @bitCast(result));
}