Zig 0.17.0-dev (Split by item)

This is an example of documentation generated by ZigDoc, an alternative to Zig's built-in Auto Doc feature. See also examples in other modes/formats. The project being documented here (as the example) is the Zig library itself.

sinh32

sinh.sinh32

fn sinh32(x: f32) f32

File

lib/std/math/sinh.zig:31

Code

fn sinh32(x: f32) f32 {
    const u = @as(u32, @bitCast(x));
    const ux = u & 0x7FFFFFFF;
    const ax = @as(f32, @bitCast(ux));

    if (x == 0.0 or math.isNan(x)) {
        return x;
    }

    var h: f32 = 0.5;
    if (u >> 31 != 0) {
        h = -h;
    }

    // |x| < log(FLT_MAX)
    if (ux < 0x42B17217) {
        const t = math.expm1(ax);
        if (ux < 0x3F800000) {
            if (ux < 0x3F800000 - (12 << 23)) {
                return x;
            } else {
                return h * (2 * t - t * t / (t + 1));
            }
        }
        return h * (t + t / (t + 1));
    }

    // |x| > log(FLT_MAX) or nan
    return 2 * h * expo2(ax);
}