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20 lines
738 B
Zig
20 lines
738 B
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 machine epsilon for type T.
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/// This is the smallest value of type T that satisfies the inequality 1.0 +
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/// epsilon != 1.0.
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pub fn epsilon(comptime T: type) T {
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return switch (T) {
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f16 => math.f16_epsilon,
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f32 => math.f32_epsilon,
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f64 => math.f64_epsilon,
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f128 => math.f128_epsilon,
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else => @compileError("epsilon not implemented for " ++ @typeName(T)),
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};
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}
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