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608bc1cbd5
Instead require `1e9` and `0x1p9`, disallowing the trailing dot. This change to the grammar is consistent with forbidding `1.` and `0x1.` as float literals and ensures there is only one way to do things here.
37 lines
1.4 KiB
Zig
37 lines
1.4 KiB
Zig
// SPDX-License-Identifier: MIT
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// Copyright (c) 2015-2021 Zig Contributors
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// This file is part of [zig](https://ziglang.org/), which is MIT licensed.
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// The MIT license requires this copyright notice to be included in all copies
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// and substantial portions of the software.
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const __fixunstfti = @import("fixunstfti.zig").__fixunstfti;
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const testing = @import("std").testing;
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fn test__fixunstfti(a: f128, expected: u128) !void {
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const x = __fixunstfti(a);
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try testing.expect(x == expected);
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}
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const inf128 = @bitCast(f128, @as(u128, 0x7fff0000000000000000000000000000));
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test "fixunstfti" {
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try test__fixunstfti(inf128, 0xffffffffffffffffffffffffffffffff);
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try test__fixunstfti(0.0, 0);
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try test__fixunstfti(0.5, 0);
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try test__fixunstfti(0.99, 0);
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try test__fixunstfti(1.0, 1);
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try test__fixunstfti(1.5, 1);
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try test__fixunstfti(1.99, 1);
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try test__fixunstfti(2.0, 2);
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try test__fixunstfti(2.01, 2);
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try test__fixunstfti(-0.01, 0);
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try test__fixunstfti(-0.99, 0);
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try test__fixunstfti(0x1p+128, 0xffffffffffffffffffffffffffffffff);
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try test__fixunstfti(0x1.FFFFFEp+126, 0x7fffff80000000000000000000000000);
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try test__fixunstfti(0x1.FFFFFEp+127, 0xffffff00000000000000000000000000);
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try test__fixunstfti(0x1.FFFFFEp+128, 0xffffffffffffffffffffffffffffffff);
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try test__fixunstfti(0x1.FFFFFEp+129, 0xffffffffffffffffffffffffffffffff);
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}
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