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catch_tostring: tostring for enum class types

This commit is contained in:
Andy Sawyer 2014-09-01 17:35:01 +01:00
parent 142f8f4b1e
commit cd2a5aa688
1 changed files with 33 additions and 3 deletions
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36
include/internal/catch_tostring.h
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@ -22,6 +22,11 @@
#endif
namespace Catch {
// Why we're here.
template<typename T>
std::string toString( T const& value );
namespace Detail {
// SFINAE is currently disabled by default for all compilers.
@ -64,10 +69,38 @@ namespace Detail {
#endif
#if defined(CATCH_CPP11_OR_GREATER)
template<typename T,
bool IsEmum = std::is_enum<T>::value
>
struct EnumStringMaker
{
static std::string convert( T const& ) { return "{?}"; }
};
template<typename T>
struct EnumStringMaker<T,true>
{
static std::string convert( T const& v )
{
return ::Catch::toString(
static_cast<typename std::underlying_type<T>::type>(v)
);
}
};
#endif
template<bool C>
struct StringMakerBase {
#if defined(CATCH_CPP11_OR_GREATER)
template<typename T>
static std::string convert( T const& v )
{
return EnumStringMaker<T>::convert( v );
}
#else
template<typename T>
static std::string convert( T const& ) { return "{?}"; }
#endif
};
template<>
@ -89,9 +122,6 @@ namespace Detail {
} // end namespace Detail
template<typename T>
std::string toString( T const& value );
template<typename T>
struct StringMaker :
Detail::StringMakerBase<Detail::IsStreamInsertable<T>::value> {};