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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.
28 lines
1.1 KiB
Zig
28 lines
1.1 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 __fixunstfsi = @import("fixunstfsi.zig").__fixunstfsi;
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const testing = @import("std").testing;
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fn test__fixunstfsi(a: f128, expected: u32) !void {
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const x = __fixunstfsi(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 "fixunstfsi" {
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try test__fixunstfsi(inf128, 0xffffffff);
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try test__fixunstfsi(0, 0x0);
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try test__fixunstfsi(0x1.23456789abcdefp+5, 0x24);
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try test__fixunstfsi(0x1.23456789abcdefp-3, 0x0);
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try test__fixunstfsi(0x1.23456789abcdefp+20, 0x123456);
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try test__fixunstfsi(0x1.23456789abcdefp+40, 0xffffffff);
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try test__fixunstfsi(0x1.23456789abcdefp+256, 0xffffffff);
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try test__fixunstfsi(-0x1.23456789abcdefp+3, 0x0);
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try test__fixunstfsi(0x1p+32, 0xFFFFFFFF);
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}
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