-// Utility subroutines for the C++ library testsuite.
+// -*- C++ -*-
+// Utility subroutines for the C++ library testsuite.
//
-// Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
+// Copyright (C) 2000, 2001, 2002, 2003 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
// This file provides the following:
//
-// 1) VERIFY(), via DEBUG_ASSERT, from Brent Verner <brent@rcfile.org>.
+// 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_testsuite_memlimit()
-// __set_testsuite_memlimit() uses setrlimit() to restrict dynamic memory
+// 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_testsuite_memlimit() is the
-// limit in megabytes (a floating-point number). If _GLIBCPP_MEM_LIMITS is
+// calling application. The argument to set_memory_limits() is the
+// limit in megabytes (a floating-point number). If _GLIBCXX_MEM_LIMITS is
// not #defined before including this header, then no limiting is attempted.
//
-// 3) gnu_counting_struct
+// 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.
+//
+// 5) pod_char, pod_int, , abstract character classes and
+// char_traits specializations for testing instantiations.
-#ifndef _GLIBCPP_TESTSUITE_HOOKS_H
-#define _GLIBCPP_TESTSUITE_HOOKS_H
+#ifndef _GLIBCXX_TESTSUITE_HOOKS_H
+#define _GLIBCXX_TESTSUITE_HOOKS_H
-#ifdef DEBUG_ASSERT
+#include <bits/c++config.h>
+#include <bits/functexcept.h>
+#include <cstddef>
+#ifdef _GLIBCXX_ASSERT
# include <cassert>
# define VERIFY(fn) assert(fn)
#else
# define VERIFY(fn) test &= (fn)
#endif
+#include <locale>
+#ifdef _GLIBCXX_HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# define unlink(x)
+#endif
-#include <bits/c++config.h>
+namespace __gnu_test
+{
+ // All macros are defined in GLIBCXX_CONFIGURE_TESTSUITE and imported
+ // from c++config.h
-// Defined in GLIBCPP_CONFIGURE_TESTSUITE.
-#ifndef _GLIBCPP_MEM_LIMITS
+ // Set memory limits if possible, if not set to 0.
+#ifndef _GLIBCXX_MEM_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);
-// Don't do memory limits.
-void
-__set_testsuite_memlimit(float x = 0)
-{ }
-#else
+ // Check mangled name demangles (using __cxa_demangle) as expected.
+ void
+ verify_demangle(const char* mangled, const char* wanted);
-// Do memory limits.
-#include <sys/resource.h>
-#include <unistd.h>
-#ifndef MEMLIMIT_MB
-#define MEMLIMIT_MB 16.0
-#endif
+ // 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);
-void
-__set_testsuite_memlimit(float __size = MEMLIMIT_MB)
-{
- struct rlimit r;
- r.rlim_cur = (rlim_t)(__size * 1048576);
+ private:
+ int _M_size;
+ test_type _M_tests[15];
+
+ public:
+ func_callback(): _M_size(0) { };
- // Heap size, seems to be common.
-#if _GLIBCPP_HAVE_MEMLIMIT_DATA
- setrlimit(RLIMIT_DATA, &r);
-#endif
+ int
+ size() const { return _M_size; }
- // Resident set size.
-#if _GLIBCPP_HAVE_MEMLIMIT_RSS
- setrlimit(RLIMIT_RSS, &r);
-#endif
+ const test_type*
+ tests() const { return _M_tests; }
- // Mapped memory (brk + mmap).
-#if _GLIBCPP_HAVE_MEMLIMIT_VMEM
- setrlimit(RLIMIT_VMEM, &r);
-#endif
+ void
+ push_back(test_type test)
+ {
+ _M_tests[_M_size] = test;
+ ++_M_size;
+ }
+ };
- // Virtual memory.
-#if _GLIBCPP_HAVE_MEMLIMIT_AS
- setrlimit(RLIMIT_AS, &r);
-#endif
-}
-#endif
+ // Run select unit tests after setting global locale.
+ void
+ run_tests_wrapped_locale(const char*, const func_callback&);
-struct gnu_counting_struct
-{
+ // Run select unit tests after setting environment variables.
+ void
+ run_tests_wrapped_env(const char*, const char*, const func_callback&);
+
+ // Try to create a locale with the given name. If it fails, bail.
+ std::locale
+ try_named_locale(const char* name);
+
+
+ // Test data types.
+ struct pod_char
+ {
+ unsigned char c;
+ };
+
+ struct pod_int
+ {
+ int i;
+ };
+
+ struct state
+ {
+ unsigned long l;
+ unsigned long l2;
+ };
+
+
+ // Counting.
+ struct counter
+ {
// Specifically and glaringly-obviously marked 'signed' so that when
- // count mistakenly goes negative, we can track the patterns of
- // deletions easier.
+ // COUNT mistakenly goes negative, we can track the patterns of
+ // deletions more easily.
typedef signed int size_type;
static size_type count;
- gnu_counting_struct() { ++count; }
- gnu_counting_struct (const gnu_counting_struct&) { ++count; }
- ~gnu_counting_struct() { --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_)
+ __throw_exception_again "copy constructor exception";
+ }
+
+ 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_)
+ __throw_exception_again "assignment operator exception";
+ }
+
+ 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(); }
+} // namespace __gnu_test
+
+namespace std
+{
+ template<class _CharT>
+ struct char_traits;
+
+ // char_traits specialization
+ template<>
+ struct char_traits<__gnu_test::pod_char>
+ {
+ typedef __gnu_test::pod_char char_type;
+ typedef __gnu_test::pod_int int_type;
+ typedef long pos_type;
+ typedef long off_type;
+ typedef __gnu_test::state state_type;
+
+ static void
+ assign(char_type& __c1, const char_type& __c2);
+
+ static bool
+ eq(const char_type& __c1, const char_type& __c2);
+
+ static bool
+ lt(const char_type& __c1, const char_type& __c2);
+
+ static int
+ compare(const char_type* __s1, const char_type* __s2, size_t __n);
+
+ static size_t
+ length(const char_type* __s);
+
+ static const char_type*
+ find(const char_type* __s, size_t __n, const char_type& __a);
+
+ static char_type*
+ move(char_type* __s1, const char_type* __s2, size_t __n);
+
+ static char_type*
+ copy(char_type* __s1, const char_type* __s2, size_t __n);
+
+ static char_type*
+ assign(char_type* __s, size_t __n, char_type __a);
+
+ static char_type
+ to_char_type(const int_type& __c);
+
+ static int_type
+ to_int_type(const char_type& __c);
-#define assert_count(n) VERIFY(gnu_counting_struct::count == n)
+ static bool
+ eq_int_type(const int_type& __c1, const int_type& __c2);
-gnu_counting_struct::size_type gnu_counting_struct::count = 0;
+ static int_type
+ eof();
+ static int_type
+ not_eof(const int_type& __c);
+ };
+} // namespace std
-#endif // _GLIBCPP_TESTSUITE_HOOKS_H
+#endif // _GLIBCXX_TESTSUITE_HOOKS_H
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