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base / check_example.cc [blame]
// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This file is meant for analyzing the code generated by the CHECK
// macros in a small executable file that's easy to disassemble.
#include <ostream>
#include "base/check_op.h"
#include "base/compiler_specific.h"
// An official build shouldn't generate code to print out messages for
// the CHECK* macros, nor should it have the strings in the
// executable. It is also important that the CHECK() function collapse to the
// same implementation as RELEASE_ASSERT(), in particular on Windows x86.
// Historically, the stream eating caused additional unnecessary instructions.
// See https://crbug.com/672699.
#define BLINK_RELEASE_ASSERT_EQUIVALENT(assertion) \
if (!(assertion)) [[unlikely]] { \
base::ImmediateCrash(); \
}
void DoCheck(bool b) {
CHECK(b) << "DoCheck " << b;
}
void DoBlinkReleaseAssert(bool b) {
BLINK_RELEASE_ASSERT_EQUIVALENT(b);
}
void DoCheckEq(int x, int y) {
CHECK_EQ(x, y);
}
int main(int argc, const char* argv[]) {
DoCheck(argc > 1);
DoCheckEq(argc, 1);
DoBlinkReleaseAssert(argc > 1);
}