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d29871977f
We already have a LICENSE file that covers the Zig Standard Library. We no longer need to remind everyone that the license is MIT in every single file. Previously this was introduced to clarify the situation for a fork of Zig that made Zig's LICENSE file harder to find, and replaced it with their own license that required annual payments to their company. However that fork now appears to be dead. So there is no need to reinforce the copyright notice in every single file.
29 lines
726 B
Zig
29 lines
726 B
Zig
const builtin = @import("builtin");
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const std = @import("std");
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const twop52: f64 = 0x1.0p52;
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const twop84: f64 = 0x1.0p84;
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const twop84_plus_twop52: f64 = 0x1.00000001p84;
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pub fn __floatundidf(a: u64) callconv(.C) f64 {
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@setRuntimeSafety(builtin.is_test);
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if (a == 0) return 0;
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var high = @bitCast(u64, twop84);
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var low = @bitCast(u64, twop52);
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high |= a >> 32;
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low |= a & 0xFFFFFFFF;
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return (@bitCast(f64, high) - twop84_plus_twop52) + @bitCast(f64, low);
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}
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pub fn __aeabi_ul2d(arg: u64) callconv(.AAPCS) f64 {
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@setRuntimeSafety(false);
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return @call(.{ .modifier = .always_inline }, __floatundidf, .{arg});
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}
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test "import floatundidf" {
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_ = @import("floatundidf_test.zig");
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}
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