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Moved Approx into its own namespace to avoid ADL issues with operator ==

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This commit is contained in:
Phil Nash 2011-04-04 07:56:44 +01:00
parent 3c08431c92
commit 01db6c4471
2 changed files with 43 additions and 41 deletions
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2
catch.hpp
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@ -66,6 +66,6 @@
// Still to be implemented // Still to be implemented
#define CHECK_NOFAIL( expr ) // !TBD - reports violation, but doesn't fail Test #define CHECK_NOFAIL( expr ) // !TBD - reports violation, but doesn't fail Test
using Catch::Approx; using Catch::Detail::Approx;
#endif // TWOBLUECUBES_CATCH_HPP_INCLUDED #endif // TWOBLUECUBES_CATCH_HPP_INCLUDED

78
internal/catch_capture.hpp
View File

@ -591,53 +591,55 @@ inline double catch_max( double x, double y )
{ {
return x > y ? x : y; return x > y ? x : y;
} }
namespace Detail
class Approx
{ {
public: class Approx
///////////////////////////////////////////////////////////////////////////
// !TBD more generic
explicit Approx
(
double d
)
: m_d( d )
{ {
} public:
///////////////////////////////////////////////////////////////////////////
// !TBD more generic
explicit Approx
(
double d
)
: m_d( d )
{
}
/////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////
template<typename T> template<typename T>
friend bool operator == friend bool operator ==
( (
const T& lhs, const T& lhs,
const Approx& rhs const Approx& rhs
) )
{ {
// !TBD Use proper tolerance // !TBD Use proper tolerance
// From: http://realtimecollisiondetection.net/blog/?p=89 // From: http://realtimecollisiondetection.net/blog/?p=89
// see also: http://www.cygnus-software.com/papers/comparingfloats/comparingfloats.htm // see also: http://www.cygnus-software.com/papers/comparingfloats/comparingfloats.htm
return fabs( lhs - rhs.m_d ) <= catch_max( CATCH_absTol, CATCH_relTol * catch_max( fabs(lhs), fabs(rhs.m_d) ) ); return fabs( lhs - rhs.m_d ) <= catch_max( CATCH_absTol, CATCH_relTol * catch_max( fabs(lhs), fabs(rhs.m_d) ) );
} }
/////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////
template<typename T> template<typename T>
friend bool operator != friend bool operator !=
( (
const T& lhs, const T& lhs,
const Approx& rhs const Approx& rhs
) )
{ {
return ! operator==( lhs, rhs ); return ! operator==( lhs, rhs );
} }
double m_d; double m_d;
}; };
}
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
template<> template<>
inline std::string toString<Approx> inline std::string toString<Detail::Approx>
( (
const Approx& value const Detail::Approx& value
) )
{ {
std::ostringstream oss; std::ostringstream oss;