zig/lib/std/special/compiler_rt/divti3_test.zig
Andrew Kelley 4a69b11e74 add license header to all std lib files
add SPDX license identifier
copyright ownership is zig contributors
2020-08-20 16:07:04 -04:00

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Zig

// SPDX-License-Identifier: MIT
// Copyright (c) 2015-2020 Zig Contributors
// This file is part of [zig](https://ziglang.org/), which is MIT licensed.
// The MIT license requires this copyright notice to be included in all copies
// and substantial portions of the software.
const __divti3 = @import("divti3.zig").__divti3;
const testing = @import("std").testing;
fn test__divti3(a: i128, b: i128, expected: i128) void {
const x = __divti3(a, b);
testing.expect(x == expected);
}
test "divti3" {
test__divti3(0, 1, 0);
test__divti3(0, -1, 0);
test__divti3(2, 1, 2);
test__divti3(2, -1, -2);
test__divti3(-2, 1, -2);
test__divti3(-2, -1, 2);
test__divti3(@bitCast(i128, @as(u128, 0x8 << 124)), 1, @bitCast(i128, @as(u128, 0x8 << 124)));
test__divti3(@bitCast(i128, @as(u128, 0x8 << 124)), -1, @bitCast(i128, @as(u128, 0x8 << 124)));
test__divti3(@bitCast(i128, @as(u128, 0x8 << 124)), -2, @bitCast(i128, @as(u128, 0x4 << 124)));
test__divti3(@bitCast(i128, @as(u128, 0x8 << 124)), 2, @bitCast(i128, @as(u128, 0xc << 124)));
}