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numeric_cast<> test factored out from conversion\cast_test.cp

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and also added (duplicated) in numeric\conversion\test


[SVN r25468]
This commit is contained in:
Fernando Cacciola
2004-09-28 21:48:39 +00:00
parent bba9169401
commit a096a4b153
3 changed files with 118 additions and 78 deletions
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cast_test.cpp
+10 -71
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@@ -7,6 +7,7 @@
// See http://www.boost.org for most recent version including documentation.
// Revision History
// 28 Set 04 factored out numeric_cast<> test (Fernando Cacciola)
// 20 Jan 01 removed use of <limits> for portability to raw GCC (David Abrahams)
// 28 Jun 00 implicit_cast removed (Beman Dawes)
// 30 Aug 99 value_cast replaced by numeric_cast
@@ -19,7 +20,7 @@
# if SCHAR_MAX == LONG_MAX
# error "This test program doesn't work if SCHAR_MAX == LONG_MAX"
# endif
# endif
using namespace boost;
using std::cout;
@@ -27,39 +28,34 @@ using std::cout;
namespace
{
struct Base
{
{
virtual char kind() { return 'B'; }
};
struct Base2
{
{
virtual char kind2() { return '2'; }
};
struct Derived : public Base, Base2
{
virtual char kind() { return 'D'; }
};
}
};
}
int main( int argc, char * argv[] )
{
cout << "Usage: test_casts [n], where n omitted or is:\n"
" 1 = execute #1 assert failure (#ifndef NDEBUG)\n"
" 2 = execute #2 assert failure (#ifndef NDEBUG)\n"
"Example: test_casts 2\n\n";
# ifdef NDEBUG
cout << "NDEBUG is defined\n";
# else
cout << "NDEBUG is not defined\n";
# endif
cout << "\nBeginning tests...\n";
cout << "\nBeginning tests...\n";
// test polymorphic_cast ---------------------------------------------------//
// tests which should succeed
Base * base = new Derived;
Base2 * base2 = 0;
@@ -89,63 +85,6 @@ int main( int argc, char * argv[] )
// the following is just so generated code can be inspected
if ( derived->kind() == 'B' ) ++err_count;
// test implicit_cast and numeric_cast -------------------------------------//
// tests which should succeed
long small_value = 1;
long small_negative_value = -1;
long large_value = LONG_MAX;
long large_negative_value = LONG_MIN;
signed char c = 0;
c = large_value; // see if compiler generates warning
c = numeric_cast<signed char>( small_value );
assert( c == 1 );
c = 0;
c = numeric_cast<signed char>( small_value );
assert( c == 1 );
c = 0;
c = numeric_cast<signed char>( small_negative_value );
assert( c == -1 );
// These tests courtesy of Joe R NWP Swatosh<joe.r.swatosh@usace.army.mil>
assert( 0.0f == numeric_cast<float>( 0.0 ) );
assert( 0.0 == numeric_cast<double>( 0.0 ) );
// tests which should result in errors being detected
caught_exception = false;
try { c = numeric_cast<signed char>( large_value ); }
catch (bad_numeric_cast)
{ cout<<"caught bad_numeric_cast #1\n"; caught_exception = true; }
if ( !caught_exception ) ++err_count;
caught_exception = false;
try { c = numeric_cast<signed char>( large_negative_value ); }
catch (bad_numeric_cast)
{ cout<<"caught bad_numeric_cast #2\n"; caught_exception = true; }
if ( !caught_exception ) ++err_count;
unsigned long ul;
caught_exception = false;
try { ul = numeric_cast<unsigned long>( large_negative_value ); }
catch (bad_numeric_cast)
{ cout<<"caught bad_numeric_cast #3\n"; caught_exception = true; }
if ( !caught_exception ) ++err_count;
caught_exception = false;
try { ul = numeric_cast<unsigned long>( small_negative_value ); }
catch (bad_numeric_cast)
{ cout<<"caught bad_numeric_cast #4\n"; caught_exception = true; }
if ( !caught_exception ) ++err_count;
caught_exception = false;
try { numeric_cast<int>( DBL_MAX ); }
catch (bad_numeric_cast)
{ cout<<"caught bad_numeric_cast #5\n"; caught_exception = true; }
if ( !caught_exception ) ++err_count;
cout << err_count << " errors detected\nTest "
<< (err_count==0 ? "passed\n" : "failed\n");
return err_count;