Function log1p [src]

Alias for std.math.log1p.log1p

Returns the natural logarithm of 1 + x with greater accuracy when x is near zero. Special Cases: log1p(+inf) = +inf log1p(+-0) = +-0 log1p(-1) = -inf log1p(x) = nan if x < -1 log1p(nan) = nan

Prototype

pub fn log1p(x: anytype) @TypeOf(x)

Example

 test log1p {
    try expect(log1p(@as(f32, 0.0)) == log1p_32(0.0));
    try expect(log1p(@as(f64, 0.0)) == log1p_64(0.0));
}

Source

  pub fn log1p(x: anytype) @TypeOf(x) {
    const T = @TypeOf(x);
    return switch (T) {
        f32 => log1p_32(x),
        f64 => log1p_64(x),
        else => @compileError("log1p not implemented for " ++ @typeName(T)),
    };
}  