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// ============================================================================
/**
* @file Integer_Truncate_Test.cpp
*
* $Id: Integer_Truncate_Test.cpp 92900 2010-12-17 14:45:11Z mcorino $
*
* Test @c ACE_Utils::truncate_cast<> function template.
*
* @author Ossama Othman <ossama_othman at symantec dot com>
*/
// ============================================================================
#include "test_config.h"
#include <ace/Truncate.h>
#include <ace/Numeric_Limits.h>
#include <algorithm>
#include <functional>
using namespace ACE_Utils;
// ----------------------------------------------------
bool
sizeof_from_lt_sizeof_to (void)
{
ACE_DEBUG ((LM_INFO,
ACE_TEXT ("Running sizeof(FROM) < sizeof(TO) test\n")));
bool success = true;
// signed from_type, unsigned to_type
{
typedef signed char from_type;
typedef unsigned int to_type;
ACE_TEST_ASSERT (sizeof (from_type) < sizeof (to_type));
from_type f =
ACE_Numeric_Limits<from_type>::max (); // Should not be truncated.
if (truncate_cast<to_type> (f) != static_cast<to_type> (f))
{
success = false;
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("\tsigned from_type / unsigned to_type ")
ACE_TEXT ("truncation test failed")));
}
}
// unsigned from_type, signed to_type
{
typedef unsigned char from_type;
typedef signed int to_type;
ACE_TEST_ASSERT (sizeof (from_type) < sizeof (to_type));
from_type f =
ACE_Numeric_Limits<from_type>::max (); // Should not be truncated.
if (truncate_cast<to_type> (f) != static_cast<to_type> (f))
{
success = false;
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("\tunsigned from_type / signed to_type ")
ACE_TEXT ("truncation test failed")));
}
}
// signed from_type, signed to_type
{
typedef signed char from_type;
typedef signed int to_type;
ACE_TEST_ASSERT (sizeof (from_type) < sizeof (to_type));
from_type f1 = -1; // Should not be truncated.
from_type f2 =
ACE_Numeric_Limits<from_type>::max (); // Should not be truncated.
if (truncate_cast<to_type> (f1) != f1
|| truncate_cast<to_type> (f2) != f2)
{
success = false;
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("\tsigned from_type / signed to_type ")
ACE_TEXT ("truncation test failed")));
}
}
// unsigned from_type, unsigned to_type
{
typedef unsigned char from_type;
typedef unsigned int to_type;
ACE_TEST_ASSERT (sizeof (from_type) < sizeof (to_type));
from_type f =
ACE_Numeric_Limits<from_type>::max (); // Should not be truncated.
if (truncate_cast<to_type> (f) != static_cast<to_type> (f))
{
success = false;
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("\tunsigned from_type / unsigned to_type ")
ACE_TEXT ("truncation test failed")));
}
}
ACE_DEBUG ((LM_INFO,
ACE_TEXT ("\t%s\n"),
success
? ACE_TEXT ("PASSED")
: ACE_TEXT ("FAILED")));
return success;
}
bool
sizeof_from_eq_sizeof_to (void)
{
ACE_DEBUG ((LM_INFO,
ACE_TEXT ("Running sizeof(FROM) == sizeof(TO) test\n")));
bool success = true;
// signed from_type, unsigned to_type
{
typedef signed int from_type;
typedef unsigned int to_type;
ACE_TEST_ASSERT (sizeof (from_type) == sizeof (to_type));
from_type f1 = -1; // Should not be truncated.
from_type f2 =
ACE_Numeric_Limits<from_type>::max (); // Should not be truncated.
if (static_cast<from_type> (truncate_cast<to_type> (f1)) != f1
|| static_cast<from_type> (truncate_cast<to_type> (f2)) != f2)
{
success = false;
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("\tsigned from_type / unsigned to_type ")
ACE_TEXT ("truncation test failed")));
}
}
// unsigned from_type, signed to_type
{
typedef unsigned int from_type;
typedef signed int to_type;
ACE_TEST_ASSERT (sizeof (from_type) == sizeof (to_type));
from_type f =
ACE_Numeric_Limits<from_type>::max (); // Should be truncated.
if (truncate_cast<to_type> (f) != ACE_Numeric_Limits<to_type>::max ())
{
success = false;
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("\tunsigned from_type / signed to_type ")
ACE_TEXT ("truncation test failed")));
}
}
// signed from_type, signed to_type
{
typedef signed int from_type;
typedef signed int to_type;
ACE_TEST_ASSERT (sizeof (from_type) == sizeof (to_type));
from_type f1 = -1; // Should not be truncated.
from_type f2 =
ACE_Numeric_Limits<from_type>::max (); // Should not be truncated.
if (truncate_cast<to_type> (f1) != f1
|| truncate_cast<to_type> (f2) != f2)
{
success = false;
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("\tsigned from_type / signed to_type ")
ACE_TEXT ("truncation test failed")));
}
}
// unsigned from_type, unsigned to_type
{
typedef unsigned int from_type;
typedef unsigned int to_type;
ACE_TEST_ASSERT (sizeof (from_type) == sizeof (to_type));
from_type f =
ACE_Numeric_Limits<from_type>::max (); // Should not be truncated.
if (truncate_cast<to_type> (f) != f)
{
success = false;
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("\tunsigned from_type / unsigned to_type ")
ACE_TEXT ("truncation test failed")));
}
}
ACE_DEBUG ((LM_INFO,
ACE_TEXT ("\t%s\n"),
success
? ACE_TEXT ("PASSED")
: ACE_TEXT ("FAILED")));
return success;
}
bool
sizeof_from_gt_sizeof_to (void)
{
ACE_DEBUG ((LM_INFO,
ACE_TEXT ("Running sizeof(FROM) > sizeof(TO) test\n")));
bool success = true;
// signed from_type, unsigned to_type
{
typedef signed int from_type;
typedef unsigned char to_type;
ACE_TEST_ASSERT (sizeof (from_type) > sizeof (to_type));
from_type f =
ACE_Numeric_Limits<from_type>::max (); // Should be truncated.
if (truncate_cast<to_type> (f) != ACE_Numeric_Limits<to_type>::max ())
{
success = false;
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("\tsigned from_type / unsigned to_type ")
ACE_TEXT ("truncation test failed")));
}
}
// unsigned from_type, signed to_type
{
typedef unsigned int from_type;
typedef signed char to_type;
ACE_TEST_ASSERT (sizeof (from_type) > sizeof (to_type));
from_type f =
ACE_Numeric_Limits<from_type>::max (); // Should be truncated.
if (truncate_cast<to_type> (f) != ACE_Numeric_Limits<to_type>::max ())
{
success = false;
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("\tunsigned from_type / signed to_type ")
ACE_TEXT ("truncation test failed")));
}
}
// signed from_type, signed to_type
{
typedef signed int from_type;
typedef signed char to_type;
ACE_TEST_ASSERT (sizeof (from_type) > sizeof (to_type));
from_type f1 = -1; // Should not be truncated.
from_type f2 =
ACE_Numeric_Limits<from_type>::max (); // Should be truncated.
if (truncate_cast<to_type> (f1) != f1
|| truncate_cast<to_type> (f2) != ACE_Numeric_Limits<to_type>::max ())
{
success = false;
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("\tsigned from_type / signed to_type ")
ACE_TEXT ("truncation test failed")));
}
}
// unsigned from_type, unsigned to_type
{
typedef unsigned int from_type;
typedef unsigned char to_type;
ACE_TEST_ASSERT (sizeof (from_type) > sizeof (to_type));
from_type f =
ACE_Numeric_Limits<from_type>::max (); // Should be truncated.
if (truncate_cast<to_type> (f) != ACE_Numeric_Limits<to_type>::max ())
{
success = false;
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("\tunsigned from_type / unsigned to_type ")
ACE_TEXT ("truncation test failed")));
}
}
ACE_DEBUG ((LM_INFO,
ACE_TEXT ("\t%s\n"),
success
? ACE_TEXT ("PASSED")
: ACE_TEXT ("FAILED")));
return success;
}
// ----------------------------------------------------
/**
* @struct Caller
*
* @brief Test method invocation functor.
*
* Test method invocation functor.
*/
template <typename T>
struct Caller : public std::unary_function<T, void>
{
/// Constructor
Caller (void) : success (true) {}
/// Function call operator overload.
void operator() (T f)
{
if (!f ())
success = false;
}
/// Flag that indicates success of all tests.
bool success;
};
// ----------------------------------------------------
int
run_main (int, ACE_TCHAR *[])
{
ACE_START_TEST (ACE_TEXT ("Integer_Truncate_Test"));
typedef bool (*test_func) ();
static test_func const tests[] =
{
sizeof_from_lt_sizeof_to
, sizeof_from_eq_sizeof_to
, sizeof_from_gt_sizeof_to
};
static size_t const test_count = sizeof (tests) / sizeof (tests[0]);
// Have some fun with the STL. :-)
Caller<test_func> c =
std::for_each (tests,
tests + test_count,
Caller<test_func> ());
ACE_END_TEST;
return c.success ? 0 : -1;
}
|
