mirror of
https://github.com/ziglang/zig.git
synced 2024-11-28 08:02:32 +00:00
87 lines
3.2 KiB
Zig
87 lines
3.2 KiB
Zig
const std = @import("std");
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const expect = std.testing.expect;
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const maxInt = std.math.maxInt;
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const minInt = std.math.minInt;
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const builtin = @import("builtin");
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test "uint128" {
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if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
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var buff: u128 = maxInt(u128);
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try expect(buff == maxInt(u128));
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const magic_const = 0x12341234123412341234123412341234;
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buff = magic_const;
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try expect(buff == magic_const);
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try expect(magic_const == 0x12341234123412341234123412341234);
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buff = 0;
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try expect(buff == @as(u128, 0));
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}
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test "undefined 128 bit int" {
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if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
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@setRuntimeSafety(true);
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// TODO implement @setRuntimeSafety
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if (builtin.mode != .Debug and builtin.mode != .ReleaseSafe) {
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return error.SkipZigTest;
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}
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var undef: u128 = undefined;
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var undef_signed: i128 = undefined;
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try expect(undef == 0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa and @bitCast(u128, undef_signed) == undef);
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}
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test "int128" {
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if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
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var buff: i128 = -1;
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try expect(buff < 0 and (buff + 1) == 0);
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try expect(@intCast(i8, buff) == @as(i8, -1));
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buff = minInt(i128);
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try expect(buff < 0);
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buff = -0x12341234123412341234123412341234;
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try expect(-buff == 0x12341234123412341234123412341234);
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const a: i128 = -170141183460469231731687303715884105728;
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const b: i128 = -0x8000_0000_0000_0000_0000_0000_0000_0000;
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try expect(@divFloor(b, 1_000_000) == -170141183460469231731687303715885);
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try expect(a == b);
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}
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test "truncate int128" {
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if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
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{
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var buff: u128 = maxInt(u128);
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try expect(@truncate(u64, buff) == maxInt(u64));
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try expect(@truncate(u90, buff) == maxInt(u90));
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try expect(@truncate(u128, buff) == maxInt(u128));
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}
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{
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var buff: i128 = maxInt(i128);
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try expect(@truncate(i64, buff) == -1);
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try expect(@truncate(i90, buff) == -1);
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try expect(@truncate(i128, buff) == maxInt(i128));
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}
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}
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