// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/// Whether two doubles are within a given distance of each other.
///
/// The `epsilon` argument must be positive and not null.
/// The `a` and `b` arguments may be null. A null value is only considered
/// near-equal to another null value.
bool nearEqual(double? a, double? b, double epsilon) {
assert(epsilon != null);
assert(epsilon >= 0.0);
if (a == null || b == null) {
return a == b;
}
return (a > (b - epsilon)) && (a < (b + epsilon)) || a == b;
}
/// Whether a double is within a given distance of zero.
///
/// The epsilon argument must be positive.
bool nearZero(double a, double epsilon) => nearEqual(a, 0.0, epsilon);-
Pierre-Louis authored
Use `curly_braces_in_flow_control_structures` for `foundation`, `gestures`, `painting`, `physics` (#104610) * Use `curly_braces_in_flow_control_structures` for `foundation` * Use `curly_braces_in_flow_control_structures` for `gestures` * Use `curly_braces_in_flow_control_structures` for `painting` * Use `curly_braces_in_flow_control_structures` for `physics` * fix comments * remove trailing space * fix TODO style