xref: /aosp_15_r20/external/skia/docs/examples/Rect_equal_operator.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1 // Copyright 2019 Google LLC.
2 // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3 #include "tools/fiddle/examples.h"
4 REG_FIDDLE(Rect_equal_operator, 256, 256, true, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     auto debugster = [](const SkRect& test) -> void {
7         SkRect negZero = {-0.0f, -0.0f, 2, 2};
8         SkDebugf("{%g, %g, %g, %g} %c= {%g, %g, %g, %g} %s numerically equal\n",
9                  test.fLeft, test.fTop, test.fRight, test.fBottom,
10                  test == negZero ? '=' : '!',
11                  negZero.fLeft, negZero.fTop, negZero.fRight, negZero.fBottom,
12                  (test.fLeft == negZero.fLeft && test.fTop == negZero.fTop &&
13                   test.fRight == negZero.fRight && test.fBottom == negZero.fBottom) ?
14                   "and are" : "yet are not");
15     };
16     SkRect tests[] = {{0, 0, 2, 2}, {-0, -0, 2, 2}, {0.0f, 0.0f, 2, 2}};
17     SkDebugf("tests are %s" "equal\n", tests[0] == tests[1] && tests[1] == tests[2] ? "" : "not ");
18     for (auto rect : tests) {
19         debugster(rect);
20     }
21 }
22 }  // END FIDDLE
23