mirror of
https://github.com/ziglang/zig.git
synced 2024-11-27 15:42:49 +00:00
f26dda2117
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
115 lines
4.3 KiB
Zig
115 lines
4.3 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_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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if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
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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_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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if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
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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 @as(u128, @bitCast(undef_signed)) == undef);
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}
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test "int128" {
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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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if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
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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(@as(i8, @intCast(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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if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
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{
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var buff: u128 = maxInt(u128);
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try expect(@as(u64, @truncate(buff)) == maxInt(u64));
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try expect(@as(u90, @truncate(buff)) == maxInt(u90));
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try expect(@as(u128, @truncate(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(@as(i64, @truncate(buff)) == -1);
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try expect(@as(i90, @truncate(buff)) == -1);
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try expect(@as(i128, @truncate(buff)) == maxInt(i128));
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}
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}
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test "shift int128" {
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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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if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
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const types = .{ u128, i128 };
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inline for (types) |t| {
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try testShlTrunc(t, 0x8, 123);
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try comptime testShlTrunc(t, 0x8, 123);
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try testShlTrunc(t, 0x40000000_00000000, 64);
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try comptime testShlTrunc(t, 0x40000000_00000000, 64);
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try testShlTrunc(t, 0x01000000_00000000_00000000, 38);
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try comptime testShlTrunc(t, 0x01000000_00000000_00000000, 38);
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try testShlTrunc(t, 0x00000008_00000000_00000000_00000000, 27);
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try comptime testShlTrunc(t, 0x00000008_00000000_00000000_00000000, 27);
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}
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}
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fn testShlTrunc(comptime Type: type, x: Type, rhs: u7) !void {
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const shifted = x << rhs;
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try expect(shifted == @as(Type, 0x40000000_00000000_00000000_00000000));
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}
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