mirror of
https://github.com/QuasarApp/backward-cpp.git
synced 2025-04-30 12:14:31 +00:00
ec14c48e3e
Tests executables made several assumptions that are only valid on some system/compiler: * That the main function is found even in a shared library (not true on windows). To fix this, test_main is now an ojbect library * That the extern test_registry in test.cpp will be initialized before any actual test uses it. This was either a lucky coincidence on linux, or being related to the variable being initialized in a shared library. The variable is now initialized by a function, guarantaaing initialization order. * That test.hpp is only inluded once per binary, which was only true because it was once part of a DLL, once the executable, hiding ODR violations. As now it's linked twice within the same binary, some functions had to be made inline. * not is not a valid C++ operator, replaced all occurences with !
99 lines
2.4 KiB
C++
99 lines
2.4 KiB
C++
/*
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* test/rectrace.cpp
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* Copyright 2013 Google Inc. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "backward.hpp"
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#include "test/test.hpp"
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#include <stdio.h>
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using namespace backward;
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typedef StackTrace stacktrace_t;
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void end_of_our_journey(stacktrace_t &st) {
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if (!st.size()) {
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st.load_here();
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}
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}
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int rec(stacktrace_t &st, int level) {
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if (level <= 1) {
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end_of_our_journey(st);
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return 0;
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}
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return rec(st, level - 1);
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}
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namespace toto {
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namespace titi {
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struct foo {
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union bar {
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NOINLINE static int trampoline(stacktrace_t &st, int level) {
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return rec(st, level);
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}
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};
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};
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} // namespace titi
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} // namespace toto
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TEST(recursion) {
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{ // lexical scope.
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stacktrace_t st;
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const int input = 3;
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int r = toto::titi::foo::bar::trampoline(st, input);
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std::cout << "rec(" << input << ") == " << r << std::endl;
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Printer printer;
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// printer.address = true;
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printer.object = true;
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printer.print(st, stdout);
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}
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}
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int fib(StackTrace &st, int level) {
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if (level == 2) {
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return 1;
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}
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if (level <= 1) {
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end_of_our_journey(st);
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return 0;
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}
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return fib(st, level - 1) + fib(st, level - 2);
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}
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TEST(fibrecursive) {
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StackTrace st;
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const int input = 6;
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int r = fib(st, input);
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std::cout << "fib(" << input << ") == " << r << std::endl;
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Printer printer;
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printer.print(st, stdout);
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}
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