How to resolve the algorithm Infinity step by step in the Zig programming language

Published on 12 May 2024 09:40 PM
#Zig

How to resolve the algorithm Infinity step by step in the Zig programming language

Table of Contents

Problem Statement

Write a function which tests if infinity is supported for floating point numbers (this step should be omitted for languages where the language specification already demands the existence of infinity, e.g. by demanding IEEE numbers), and if so, returns positive infinity.   Otherwise, return the largest possible positive floating point number. For languages with several floating point types, use the type of the literal constant   1.5   as floating point type.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Infinity step by step in the Zig programming language

Source code in the zig programming language

const std = @import("std");

const math = std.math;

test "infinity" {
    const expect = std.testing.expect;

    const float_types = [_]type{ f16, f32, f64, f80, f128, c_longdouble };
    inline for (float_types) |T| {
        const infinite_value: T = comptime std.math.inf(T);

        try expect(math.isInf(infinite_value));
        try expect(math.isPositiveInf(infinite_value));
        try expect(!math.isNegativeInf(infinite_value));
        try expect(!math.isFinite(infinite_value));
    }
}

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