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Suppress and/or fix warnings - in particular avoid undefined behaviour in the test cases!

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[SVN r57859]
This commit is contained in:
John Maddock
2009-11-23 10:43:00 +00:00
parent 8cab32a0dd
commit 285048504c
4 changed files with 42 additions and 5 deletions
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23
test/integer_mask_test.cpp
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@ -17,6 +17,9 @@
#include <iostream> // for std::cout (std::endl indirectly)
#ifdef BOOST_MSVC
#pragma warning(disable:4127) // conditional expression is constant
#endif
#define PRIVATE_HIGH_BIT_SLOW_TEST(v) BOOST_CHECK( ::boost::high_bit_mask_t< \
(v) >::high_bit == (1ul << (v)) );
@ -25,10 +28,20 @@
#define PRIVATE_HIGH_BIT_TEST(v) do { PRIVATE_HIGH_BIT_SLOW_TEST(v); \
PRIVATE_HIGH_BIT_FAST_TEST(v); } while (false)
#define PRIVATE_LOW_BITS_SLOW_TEST(v) BOOST_CHECK( ::boost::low_bits_mask_t< \
(v) >::sig_bits == ((1ul << (v)) - 1) );
#define PRIVATE_LOW_BITS_FAST_TEST(v) BOOST_CHECK( ::boost::low_bits_mask_t< \
(v) >::sig_bits_fast == ((1ul << (v)) - 1) );
#define PRIVATE_LOW_BITS_SLOW_TEST(v) \
do{ \
unsigned long mask = 0;\
if(v > 0)\
{ mask = ((1ul << (v-1)) - 1); mask <<= 1; mask |= 1; }\
BOOST_CHECK( ::boost::low_bits_mask_t< (v) >::sig_bits == mask); \
}while(false);
#define PRIVATE_LOW_BITS_FAST_TEST(v) \
do{ \
unsigned long mask = 0;\
if(v > 0)\
{ mask = ((1ul << (v-1)) - 1); mask <<= 1; mask |= 1; }\
BOOST_CHECK( ::boost::low_bits_mask_t< (v) >::sig_bits_fast == mask);\
}while(false);
#define PRIVATE_LOW_BITS_TEST(v) do { PRIVATE_LOW_BITS_SLOW_TEST(v); \
PRIVATE_LOW_BITS_FAST_TEST(v); } while (false)
@ -73,7 +86,7 @@ int test_main( int, char*[] )
PRIVATE_HIGH_BIT_TEST( 0 );
cout << "Doing low_bits_mask_t tests." << endl;
PRIVATE_LOW_BITS_TEST( 32 ); // Undefined behavior? Whoops!
PRIVATE_LOW_BITS_TEST( 32 );
PRIVATE_LOW_BITS_TEST( 31 );
PRIVATE_LOW_BITS_TEST( 30 );
PRIVATE_LOW_BITS_TEST( 29 );