--- /dev/null
+// -*- C++ -*-
+// Utility subroutines for the C++ library testsuite.
+//
+// Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+// Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+//
+
+// This file provides the following:
+//
+// 1) VERIFY(), via _GLIBCXX_ASSERT, from Brent Verner <brent@rcfile.org>.
+// This file is included in the various testsuite programs to provide
+// #define(able) assert() behavior for debugging/testing. It may be
+// a suitable location for other furry woodland creatures as well.
+//
+// 2) set_memory_limits()
+// set_memory_limits() uses setrlimit() to restrict dynamic memory
+// allocation. We provide a default memory limit if none is passed by the
+// calling application. The argument to set_memory_limits() is the
+// limit in megabytes (a floating-point number). If _GLIBCXX_RES_LIMITS is
+// not #defined before including this header, then no limiting is attempted.
+//
+// 3) counter
+// This is a POD with a static data member, gnu_counting_struct::count,
+// which starts at zero, increments on instance construction, and decrements
+// on instance destruction. "assert_count(n)" can be called to VERIFY()
+// that the count equals N.
+//
+// 4) copy_tracker, from Stephen M. Webb <stephen@bregmasoft.com>.
+// A class with nontrivial ctor/dtor that provides the ability to track the
+// number of copy ctors and dtors, and will throw on demand during copy.
+
+#ifndef _GLIBCXX_TESTSUITE_HOOKS_H
+#define _GLIBCXX_TESTSUITE_HOOKS_H
+
+#include <bits/c++config.h>
+#include <bits/functexcept.h>
+#include <ctime>
+
+#ifdef _GLIBCXX_HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+
+#ifdef _GLIBCXX_ASSERT
+# include <cassert>
+# define VERIFY(fn) assert(fn)
+#else
+# define VERIFY(fn) test &= (fn)
+#endif
+
+#ifdef _GLIBCXX_HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# define unlink(x)
+#endif
+
+namespace __gnu_test
+{
+ // All macros are defined in GLIBCXX_CONFIGURE_TESTSUITE and imported
+ // from c++config.h
+
+ // Set memory limits if possible, if not set to 0.
+#ifndef _GLIBCXX_RES_LIMITS
+# define MEMLIMIT_MB 0
+#else
+# ifndef MEMLIMIT_MB
+# define MEMLIMIT_MB 16.0
+# endif
+#endif
+ extern void
+ set_memory_limits(float __size = MEMLIMIT_MB);
+
+ extern void
+ set_file_limit(unsigned long __size);
+
+ // Check mangled name demangles (using __cxa_demangle) as expected.
+ void
+ verify_demangle(const char* mangled, const char* wanted);
+
+ // Simple callback structure for variable numbers of tests (all with
+ // same signature). Assume all unit tests are of the signature
+ // void test01();
+ class func_callback
+ {
+ public:
+ typedef void (*test_type) (void);
+
+ private:
+ int _M_size;
+ test_type _M_tests[15];
+
+ func_callback&
+ operator=(const func_callback&);
+
+ func_callback(const func_callback&);
+
+ public:
+ func_callback(): _M_size(0) { }
+
+ int
+ size() const { return _M_size; }
+
+ const test_type*
+ tests() const { return _M_tests; }
+
+ void
+ push_back(test_type test)
+ {
+ _M_tests[_M_size] = test;
+ ++_M_size;
+ }
+ };
+
+
+ // Run select unit tests after setting global locale.
+ void
+ run_tests_wrapped_locale(const char*, const func_callback&);
+
+ // Run select unit tests after setting environment variables.
+ void
+ run_tests_wrapped_env(const char*, const char*, const func_callback&);
+
+ // Counting.
+ struct counter
+ {
+ // Specifically and glaringly-obviously marked 'signed' so that when
+ // COUNT mistakenly goes negative, we can track the patterns of
+ // deletions more easily.
+ typedef signed int size_type;
+ static size_type count;
+ counter() { ++count; }
+ counter (const counter&) { ++count; }
+ ~counter() { --count; }
+ };
+
+#define assert_count(n) VERIFY(__gnu_test::counter::count == n)
+
+ // A (static) class for counting copy constructors and possibly throwing an
+ // exception on a desired count.
+ class copy_constructor
+ {
+ public:
+ static unsigned int
+ count() { return count_; }
+
+ static void
+ mark_call()
+ {
+ count_++;
+ if (count_ == throw_on_)
+ std::__throw_runtime_error("copy_constructor::mark_call");
+ }
+
+ static void
+ reset()
+ {
+ count_ = 0;
+ throw_on_ = 0;
+ }
+
+ static void
+ throw_on(unsigned int count) { throw_on_ = count; }
+
+ private:
+ static unsigned int count_;
+ static unsigned int throw_on_;
+ };
+
+ // A (static) class for counting assignment operator calls and
+ // possibly throwing an exception on a desired count.
+ class assignment_operator
+ {
+ public:
+ static unsigned int
+ count() { return count_; }
+
+ static void
+ mark_call()
+ {
+ count_++;
+ if (count_ == throw_on_)
+ std::__throw_runtime_error("assignment_operator::mark_call");
+ }
+
+ static void
+ reset()
+ {
+ count_ = 0;
+ throw_on_ = 0;
+ }
+
+ static void
+ throw_on(unsigned int count) { throw_on_ = count; }
+
+ private:
+ static unsigned int count_;
+ static unsigned int throw_on_;
+ };
+
+ // A (static) class for tracking calls to an object's destructor.
+ class destructor
+ {
+ public:
+ static unsigned int
+ count() { return _M_count; }
+
+ static void
+ mark_call() { _M_count++; }
+
+ static void
+ reset() { _M_count = 0; }
+
+ private:
+ static unsigned int _M_count;
+ };
+
+ // An class of objects that can be used for validating various
+ // behaviours and guarantees of containers and algorithms defined in
+ // the standard library.
+ class copy_tracker
+ {
+ public:
+ // Creates a copy-tracking object with the given ID number. If
+ // "throw_on_copy" is set, an exception will be thrown if an
+ // attempt is made to copy this object.
+ copy_tracker(int id = next_id_--, bool throw_on_copy = false)
+ : id_(id) , throw_on_copy_(throw_on_copy) { }
+
+ // Copy-constructs the object, marking a call to the copy
+ // constructor and forcing an exception if indicated.
+ copy_tracker(const copy_tracker& rhs)
+ : id_(rhs.id()), throw_on_copy_(rhs.throw_on_copy_)
+ {
+ if (throw_on_copy_)
+ copy_constructor::throw_on(copy_constructor::count() + 1);
+ copy_constructor::mark_call();
+ }
+
+ // Assigns the value of another object to this one, tracking the
+ // number of times this member function has been called and if the
+ // other object is supposed to throw an exception when it is
+ // copied, well, make it so.
+ copy_tracker&
+ operator=(const copy_tracker& rhs)
+ {
+ id_ = rhs.id();
+ if (rhs.throw_on_copy_)
+ assignment_operator::throw_on(assignment_operator::count() + 1);
+ assignment_operator::mark_call();
+ return *this;
+ }
+
+ ~copy_tracker()
+ { destructor::mark_call(); }
+
+ int
+ id() const { return id_; }
+
+ private:
+ int id_;
+ const bool throw_on_copy_;
+
+ public:
+ static void
+ reset()
+ {
+ copy_constructor::reset();
+ assignment_operator::reset();
+ destructor::reset();
+ }
+
+ // for backwards-compatibility
+ static int
+ copyCount()
+ { return copy_constructor::count(); }
+
+ // for backwards-compatibility
+ static int
+ dtorCount()
+ { return destructor::count(); }
+
+ private:
+ static int next_id_;
+ };
+
+ inline bool
+ operator==(const copy_tracker& lhs, const copy_tracker& rhs)
+ { return lhs.id() == rhs.id(); }
+
+ // Class for checking required type conversions, implicit and
+ // explicit for given library data structures.
+ template<typename _Container>
+ struct conversion
+ {
+ typedef typename _Container::const_iterator const_iterator;
+
+ // Implicit conversion iterator to const_iterator.
+ static const_iterator
+ iterator_to_const_iterator()
+ {
+ _Container v;
+ const_iterator it = v.begin();
+ const_iterator end = v.end();
+ return it == end ? v.end() : it;
+ }
+ };
+
+ // A binary semaphore for use across multiple processes.
+ class semaphore
+ {
+ public:
+ // Creates a binary semaphore. The semaphore is initially in the
+ // unsignaled state.
+ semaphore();
+
+ // Destroy the semaphore.
+ ~semaphore();
+
+ // Signal the semaphore. If there are processes blocked in
+ // "wait", exactly one will be permitted to proceed.
+ void signal();
+
+ // Wait until the semaphore is signaled.
+ void wait();
+
+ private:
+ int sem_set_;
+
+ pid_t pid_;
+ };
+
+ // For use in 22_locale/time_get and time_put.
+ std::tm test_tm(int sec, int min, int hour, int mday, int mon,
+ int year, int wday, int yday, int isdst);
+
+} // namespace __gnu_test
+
+#endif // _GLIBCXX_TESTSUITE_HOOKS_H
+
projects / msp430-gcc.git / blobdiff