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30 lines
1.1 KiB
Zig
30 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 math = @import("../math.zig");
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/// Returns the nan representation for type T.
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pub fn nan(comptime T: type) T {
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return switch (T) {
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f16 => math.nan_f16,
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f32 => math.nan_f32,
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f64 => math.nan_f64,
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f128 => math.nan_f128,
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else => @compileError("nan not implemented for " ++ @typeName(T)),
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};
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}
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/// Returns the signalling nan representation for type T.
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pub fn snan(comptime T: type) T {
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// Note: A signalling nan is identical to a standard right now by may have a different bit
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// representation in the future when required.
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return switch (T) {
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f16 => @bitCast(f16, math.nan_u16),
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f32 => @bitCast(f32, math.nan_u32),
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f64 => @bitCast(f64, math.nan_u64),
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else => @compileError("snan not implemented for " ++ @typeName(T)),
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};
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}
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