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Added value-initialization tests for int_struct_holder; made tests more uniform by having an is_value_initialized(arg) function for each type.

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[SVN r61188]
This commit is contained in:
Niels Dekker
2010-04-10 22:27:55 +00:00
parent 0ecdbd11d5
commit 43f24c36f7
1 changed files with 134 additions and 95 deletions
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229
test/boost_no_com_value_init.ipp
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@@ -32,7 +32,7 @@ namespace boost_no_complete_value_initialization
void* p; void* p;
}; };
bool is_zero_initialized(const pod_struct& arg) bool is_value_initialized(const pod_struct& arg)
{ {
return return
arg.e == 0 && arg.e == 0 &&
@@ -52,10 +52,10 @@ namespace boost_no_complete_value_initialization
int derived_data; int derived_data;
}; };
bool is_zero_initialized(const derived_pod_struct& arg) bool is_value_initialized(const derived_pod_struct& arg)
{ {
const pod_struct& base_subobject = arg; const pod_struct& base_subobject = arg;
return arg.derived_data == 0 && is_zero_initialized(base_subobject); return arg.derived_data == 0 && is_value_initialized(base_subobject);
} }
struct empty_struct struct empty_struct
@@ -67,7 +67,7 @@ namespace boost_no_complete_value_initialization
int data; int data;
}; };
bool is_zero_initialized(const derived_struct& arg) bool is_value_initialized(const derived_struct& arg)
{ {
return arg.data == 0; return arg.data == 0;
} }
@@ -77,11 +77,26 @@ namespace boost_no_complete_value_initialization
int data; int data;
}; };
bool is_value_initialized(const int_struct& arg)
{
return arg.data == 0;
}
struct int_struct_holder
{
int_struct data;
};
bool is_value_initialized(const int_struct_holder& arg)
{
return is_value_initialized(arg.data);
}
struct derived_int_struct: int_struct struct derived_int_struct: int_struct
{ {
}; };
bool is_zero_initialized(const int_struct& arg) bool is_value_initialized(const derived_int_struct& arg)
{ {
return arg.data == 0; return arg.data == 0;
} }
@@ -92,11 +107,11 @@ namespace boost_no_complete_value_initialization
int second; int second;
}; };
bool is_zero_initialized(const pod_struct_and_int_union& arg) bool is_value_initialized(const pod_struct_and_int_union& arg)
{ {
// When a union is zero-initialized, its first non-static // When a union is zero-initialized, its first non-static
// named data member is zero-initialized ([dcl.init]). // named data member is zero-initialized ([dcl.init]).
return is_zero_initialized(arg.first); return is_value_initialized(arg.first);
} }
@@ -106,7 +121,7 @@ namespace boost_no_complete_value_initialization
pod_struct second; pod_struct second;
}; };
bool is_zero_initialized(const int_and_pod_struct_union& arg) bool is_value_initialized(const int_and_pod_struct_union& arg)
{ {
return arg.first == 0; return arg.first == 0;
} }
@@ -126,12 +141,17 @@ namespace boost_no_complete_value_initialization
{ {
} }
bool is_default() const bool is_value_initialized() const
{ {
return m_enum == magic_number; return m_enum == magic_number;
} }
}; };
bool is_value_initialized(const enum_holder& arg)
{
return arg.is_value_initialized();
}
// An aggregate struct of a non-POD class and an int. // An aggregate struct of a non-POD class and an int.
struct enum_holder_and_int struct enum_holder_and_int
@@ -142,7 +162,7 @@ namespace boost_no_complete_value_initialization
bool is_value_initialized(const enum_holder_and_int& arg) bool is_value_initialized(const enum_holder_and_int& arg)
{ {
return arg.e.is_default() && arg.i == 0; return arg.e.is_value_initialized() && arg.i == 0;
} }
@@ -154,9 +174,9 @@ namespace boost_no_complete_value_initialization
protected: protected:
int protected_int; int protected_int;
public: public:
bool is_value_initialized() const friend bool is_value_initialized(const private_and_protected_int& arg)
{ {
return private_int == 0 && protected_int == 0; return arg.private_int == 0 && arg.protected_int == 0;
} }
}; };
@@ -202,27 +222,39 @@ namespace boost_no_complete_value_initialization
virtual bool is_value_initialized() const virtual bool is_value_initialized() const
{ {
return m_enum_holder.is_default() && i == 0; return m_enum_holder.is_value_initialized() && i == 0;
} }
virtual ~non_pod_class() {} virtual ~non_pod_class() {}
}; };
bool is_value_initialized(const non_pod_class& arg)
// The first argument (is_value_initializated) tells whether value initialization
// has succeeded.
// The second argument tells what expression was evaluated.
bool is_true(bool is_value_initializated, const char *const expression)
{ {
if ( ! is_value_initializated ) return arg.is_value_initialized();
{
std::cout << "Note: " << expression << " evaluated to false." << std::endl;
}
return is_value_initializated;
} }
#define IS_TRUE(value) is_true(value, #value)
#define IS_ZERO(value) is_true(value == 0, #value " == 0") // For built-in types and enumerated types.
template <typename T>
bool is_value_initialized(const T& arg)
{
return arg == 0;
}
// The first argument should specify whether a specific variable is value-initializated.
// The second argument should specify the name of the variable.
// Passes the information to standard output, if the variable is not value-initializated.
bool is_true(bool is_variable_value_initializated, const char *const variable_name)
{
if ( ! is_variable_value_initializated )
{
std::cout << "Note: " << variable_name << " is not value-initialized." << std::endl;
}
return is_variable_value_initializated;
}
#define IS_VALUE_INITIALIZED(value) is_true( is_value_initialized(value), #value)
// value_initializer initializes each of its data members by means // value_initializer initializes each of its data members by means
// of an empty set of parentheses, and allows checking whether // of an empty set of parentheses, and allows checking whether
@@ -255,6 +287,8 @@ namespace boost_no_complete_value_initialization
void* m_ptr_array[2]; void* m_ptr_array[2];
int_struct m_int_struct; int_struct m_int_struct;
int_struct m_int_struct_array[2]; int_struct m_int_struct_array[2];
int_struct m_int_struct_holder;
int_struct m_int_struct_holder_array[2];
pod_struct m_pod_struct; pod_struct m_pod_struct;
pod_struct m_pod_struct_array[2]; pod_struct m_pod_struct_array[2];
derived_pod_struct m_derived_pod; derived_pod_struct m_derived_pod;
@@ -305,6 +339,8 @@ namespace boost_no_complete_value_initialization
m_ptr_array(), m_ptr_array(),
m_int_struct(), m_int_struct(),
m_int_struct_array(), m_int_struct_array(),
m_int_struct_holder(),
m_int_struct_holder_array(),
m_pod_struct(), m_pod_struct(),
m_pod_struct_array(), m_pod_struct_array(),
m_derived_pod(), m_derived_pod(),
@@ -334,75 +370,78 @@ namespace boost_no_complete_value_initialization
unsigned check() const unsigned check() const
{ {
const unsigned num_failures = const unsigned num_failures =
(IS_TRUE( m_enum_holder.is_default() ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_enum_holder) ? 0 : 1) +
(IS_TRUE( m_enum_holder_array[0].is_default() ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_enum_holder_array[0]) ? 0 : 1) +
(IS_TRUE( m_enum_holder_array[1].is_default() ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_enum_holder_array[1]) ? 0 : 1) +
(IS_ZERO(m_enum) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_enum) ? 0 : 1) +
(IS_ZERO(m_enum_array[0]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_enum_array[0]) ? 0 : 1) +
(IS_ZERO(m_enum_array[1]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_enum_array[1]) ? 0 : 1) +
(IS_ZERO(m_char) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_char) ? 0 : 1) +
(IS_ZERO(m_char_array[0]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_char_array[0]) ? 0 : 1) +
(IS_ZERO(m_char_array[1]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_char_array[1]) ? 0 : 1) +
(IS_ZERO(m_unsigned_char) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_unsigned_char) ? 0 : 1) +
(IS_ZERO(m_unsigned_char_array[0]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_unsigned_char_array[0]) ? 0 : 1) +
(IS_ZERO(m_unsigned_char_array[1]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_unsigned_char_array[1]) ? 0 : 1) +
(IS_ZERO(m_short) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_short) ? 0 : 1) +
(IS_ZERO(m_short_array[0]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_short_array[0]) ? 0 : 1) +
(IS_ZERO(m_short_array[1]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_short_array[1]) ? 0 : 1) +
(IS_ZERO(m_int) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_int) ? 0 : 1) +
(IS_ZERO(m_int_array[0]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_int_array[0]) ? 0 : 1) +
(IS_ZERO(m_int_array[1]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_int_array[1]) ? 0 : 1) +
(IS_ZERO(m_unsigned) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_unsigned) ? 0 : 1) +
(IS_ZERO(m_unsigned_array[0]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_unsigned_array[0]) ? 0 : 1) +
(IS_ZERO(m_unsigned_array[1]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_unsigned_array[1]) ? 0 : 1) +
(IS_ZERO(m_long) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_long) ? 0 : 1) +
(IS_ZERO(m_long_array[0]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_long_array[0]) ? 0 : 1) +
(IS_ZERO(m_long_array[1]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_long_array[1]) ? 0 : 1) +
(IS_ZERO(m_float) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_float) ? 0 : 1) +
(IS_ZERO(m_float_array[0]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_float_array[0]) ? 0 : 1) +
(IS_ZERO(m_float_array[1]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_float_array[1]) ? 0 : 1) +
(IS_ZERO(m_double) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_double) ? 0 : 1) +
(IS_ZERO(m_double_array[0]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_double_array[0]) ? 0 : 1) +
(IS_ZERO(m_double_array[1]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_double_array[1]) ? 0 : 1) +
(IS_ZERO(m_ptr) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_ptr) ? 0 : 1) +
(IS_ZERO(m_ptr_array[0]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_ptr_array[0]) ? 0 : 1) +
(IS_ZERO(m_ptr_array[1]) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_ptr_array[1]) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_int_struct) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_int_struct) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_int_struct_array[0]) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_int_struct_array[0]) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_int_struct_array[1]) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_int_struct_array[1]) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_pod_struct) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_int_struct_holder) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_pod_struct_array[0]) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_int_struct_holder_array[0]) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_pod_struct_array[1]) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_int_struct_holder_array[1]) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_derived_pod) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_pod_struct) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_derived_pod_array[0]) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_pod_struct_array[0]) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_derived_pod_array[1]) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_pod_struct_array[1]) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_derived_struct) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_derived_pod) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_derived_struct_array[0]) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_derived_pod_array[0]) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_derived_struct_array[1]) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_derived_pod_array[1]) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_derived_int_struct) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_derived_struct) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_derived_int_struct_array[0]) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_derived_struct_array[0]) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_derived_int_struct_array[1]) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_derived_struct_array[1]) ? 0 : 1) +
(IS_TRUE( is_value_initialized(m_enum_holder_and_int) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_derived_int_struct) ? 0 : 1) +
(IS_TRUE( is_value_initialized(m_enum_holder_and_int_array[0]) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_derived_int_struct_array[0]) ? 0 : 1) +
(IS_TRUE( is_value_initialized(m_enum_holder_and_int_array[1]) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_derived_int_struct_array[1]) ? 0 : 1) +
(IS_TRUE( m_private_and_protected_int.is_value_initialized() ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_enum_holder_and_int) ? 0 : 1) +
(IS_TRUE( m_private_and_protected_int_array[0].is_value_initialized() ) ? 0 : 1 ) + (IS_VALUE_INITIALIZED(m_enum_holder_and_int_array[0]) ? 0 : 1) +
(IS_TRUE( m_private_and_protected_int_array[1].is_value_initialized() ) ? 0 : 1 ); (IS_VALUE_INITIALIZED(m_enum_holder_and_int_array[1]) ? 0 : 1) +
(IS_TRUE( is_value_initialized(m_user_defined_destructor_holder) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_private_and_protected_int) ? 0 : 1) +
(IS_TRUE( is_value_initialized(m_user_defined_destructor_holder_array[0]) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_private_and_protected_int_array[0]) ? 0 : 1 ) +
(IS_TRUE( is_value_initialized(m_user_defined_destructor_holder_array[1]) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_private_and_protected_int_array[1]) ? 0 : 1 );
(IS_TRUE( is_value_initialized(m_virtual_destructor_holder) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_user_defined_destructor_holder) ? 0 : 1) +
(IS_TRUE( is_value_initialized(m_virtual_destructor_holder_array[0]) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_user_defined_destructor_holder_array[0]) ? 0 : 1) +
(IS_TRUE( is_value_initialized(m_virtual_destructor_holder_array[1]) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_user_defined_destructor_holder_array[1]) ? 0 : 1) +
(IS_TRUE( m_non_pod.is_value_initialized() ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_virtual_destructor_holder) ? 0 : 1) +
(IS_TRUE( m_non_pod_array[0].is_value_initialized() ) ? 0 : 1 ) + (IS_VALUE_INITIALIZED(m_virtual_destructor_holder_array[0]) ? 0 : 1) +
(IS_TRUE( m_non_pod_array[1].is_value_initialized() ) ? 0 : 1 ) + (IS_VALUE_INITIALIZED(m_virtual_destructor_holder_array[1]) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_pod_struct_and_int_union) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_non_pod) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_pod_struct_and_int_union_array[0]) ) ? 0 : 1 ) + (IS_VALUE_INITIALIZED(m_non_pod_array[0]) ? 0 : 1 ) +
(IS_TRUE( is_zero_initialized(m_pod_struct_and_int_union_array[1]) ) ? 0 : 1 ) + (IS_VALUE_INITIALIZED(m_non_pod_array[1]) ? 0 : 1 ) +
(IS_TRUE( is_zero_initialized(m_int_and_pod_struct_union) ) ? 0 : 1) + (IS_VALUE_INITIALIZED(m_pod_struct_and_int_union) ? 0 : 1) +
(IS_TRUE( is_zero_initialized(m_int_and_pod_struct_union_array[0]) ) ? 0 : 1 ) + (IS_VALUE_INITIALIZED(m_pod_struct_and_int_union_array[0]) ? 0 : 1 ) +
(IS_TRUE( is_zero_initialized(m_int_and_pod_struct_union_array[1]) ) ? 0 : 1 ); (IS_VALUE_INITIALIZED(m_pod_struct_and_int_union_array[1]) ? 0 : 1 ) +
(IS_VALUE_INITIALIZED(m_int_and_pod_struct_union) ? 0 : 1) +
(IS_VALUE_INITIALIZED(m_int_and_pod_struct_union_array[0]) ? 0 : 1 ) +
(IS_VALUE_INITIALIZED(m_int_and_pod_struct_union_array[1]) ? 0 : 1 );
return num_failures; return num_failures;
} }
}; };
@@ -419,7 +458,7 @@ namespace boost_no_complete_value_initialization
{ {
std::cout << "Number of initialization failures on the stack: " << num_failures_on_stack std::cout << "Number of initialization failures on the stack: " << num_failures_on_stack
<< "\nNumber of initialization failures on the heap: " << num_failures_on_heap << "\nNumber of initialization failures on the heap: " << num_failures_on_heap
<< "\nDetected by boost_no_complete_value_initialization::test() revision 5." << "\nDetected by boost_no_complete_value_initialization::test() revision 6."
<< std::endl; << std::endl;
} }
return static_cast<int>(num_failures_on_stack + num_failures_on_heap); return static_cast<int>(num_failures_on_stack + num_failures_on_heap);