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Commit 06dd40d3 authored by davis@blarg-a324a5a3e.localnet's avatar davis@blarg-a324a5a3e.localnet
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Changed the type_safe_union a little bit to avoid the C4503 warnings 

you sometimes get from visual studio about
"decorated name length exceeded, name was truncated".

What I did was introduce a new type called _void as the deafult
template parameter for the type_safe_union rather than use the T1
type as the default for the 19 other parameters.  Since _void is
always a short word it helps keep the warning from showing up.
parent f7c8e1c0
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Showing with 156 additions and 131 deletions
dlib/type_safe_union/type_safe_union_kernel.h
View file @ 06dd40d3
...@@ -8,34 +8,41 @@ ...@@ -8,34 +8,41 @@
#include "../noncopyable.h" #include "../noncopyable.h"
#include "../serialize.h" #include "../serialize.h"
#include <new> #include <new>
#include <iostream>
namespace dlib namespace dlib
{ {
// ----------------------------------------------------------------------------------------
struct _void{};
inline void serialize( const _void&, std::ostream&){}
inline void deserialize( _void&, std::istream&){}
// ---------------------------------------------------------------------------------------- // ----------------------------------------------------------------------------------------
template < template <
typename T1, typename T1,
typename T2 = T1, typename T2 = _void,
typename T3 = T1, typename T3 = _void,
typename T4 = T1, typename T4 = _void,
typename T5 = T1, typename T5 = _void,
typename T6 = T1, typename T6 = _void,
typename T7 = T1, typename T7 = _void,
typename T8 = T1, typename T8 = _void,
typename T9 = T1, typename T9 = _void,
typename T10 = T1, typename T10 = _void,
typename T11 = T1, typename T11 = _void,
typename T12 = T1, typename T12 = _void,
typename T13 = T1, typename T13 = _void,
typename T14 = T1, typename T14 = _void,
typename T15 = T1, typename T15 = _void,
typename T16 = T1, typename T16 = _void,
typename T17 = T1, typename T17 = _void,
typename T18 = T1, typename T18 = _void,
typename T19 = T1, typename T19 = _void,
typename T20 = T1 typename T20 = _void
> >
class type_safe_union : noncopyable class type_safe_union : noncopyable
{ {
...@@ -49,6 +56,24 @@ namespace dlib ...@@ -49,6 +56,24 @@ namespace dlib
private: private:
template <typename T, typename U>
void invoke_on (
T& obj,
U& item
) const
{
obj(item);
}
template <typename T>
void invoke_on (
T& obj,
_void
) const
{
}
const static size_t max_size = tmax<tmax<tmax<tmax<tmax<tmax<tmax<tmax<tmax<tmax< const static size_t max_size = tmax<tmax<tmax<tmax<tmax<tmax<tmax<tmax<tmax<tmax<
tmax<tmax<tmax<tmax<tmax<tmax<tmax<tmax<tmax<sizeof(T1), tmax<tmax<tmax<tmax<tmax<tmax<tmax<tmax<tmax<sizeof(T1),
sizeof(T2)>::value, sizeof(T2)>::value,
...@@ -375,29 +400,29 @@ namespace dlib ...@@ -375,29 +400,29 @@ namespace dlib
// do nothing because we are empty // do nothing because we are empty
case 0: break; case 0: break;
case 1: obj(unchecked_get<T1>()); break; case 1: invoke_on(obj,unchecked_get<T1>()); break;
case 2: obj(unchecked_get<T2>()); break; case 2: invoke_on(obj,unchecked_get<T2>()); break;
case 3: obj(unchecked_get<T3>()); break; case 3: invoke_on(obj,unchecked_get<T3>()); break;
case 4: obj(unchecked_get<T4>()); break; case 4: invoke_on(obj,unchecked_get<T4>()); break;
case 5: obj(unchecked_get<T5>()); break; case 5: invoke_on(obj,unchecked_get<T5>()); break;
case 6: obj(unchecked_get<T6>()); break; case 6: invoke_on(obj,unchecked_get<T6>()); break;
case 7: obj(unchecked_get<T7>()); break; case 7: invoke_on(obj,unchecked_get<T7>()); break;
case 8: obj(unchecked_get<T8>()); break; case 8: invoke_on(obj,unchecked_get<T8>()); break;
case 9: obj(unchecked_get<T9>()); break; case 9: invoke_on(obj,unchecked_get<T9>()); break;
case 10: obj(unchecked_get<T10>()); break; case 10: invoke_on(obj,unchecked_get<T10>()); break;
case 11: obj(unchecked_get<T11>()); break; case 11: invoke_on(obj,unchecked_get<T11>()); break;
case 12: obj(unchecked_get<T12>()); break; case 12: invoke_on(obj,unchecked_get<T12>()); break;
case 13: obj(unchecked_get<T13>()); break; case 13: invoke_on(obj,unchecked_get<T13>()); break;
case 14: obj(unchecked_get<T14>()); break; case 14: invoke_on(obj,unchecked_get<T14>()); break;
case 15: obj(unchecked_get<T15>()); break; case 15: invoke_on(obj,unchecked_get<T15>()); break;
case 16: obj(unchecked_get<T16>()); break; case 16: invoke_on(obj,unchecked_get<T16>()); break;
case 17: obj(unchecked_get<T17>()); break; case 17: invoke_on(obj,unchecked_get<T17>()); break;
case 18: obj(unchecked_get<T18>()); break; case 18: invoke_on(obj,unchecked_get<T18>()); break;
case 19: obj(unchecked_get<T19>()); break; case 19: invoke_on(obj,unchecked_get<T19>()); break;
case 20: obj(unchecked_get<T20>()); break; case 20: invoke_on(obj,unchecked_get<T20>()); break;
} }
} }
...@@ -413,29 +438,29 @@ namespace dlib ...@@ -413,29 +438,29 @@ namespace dlib
// do nothing because we are empty // do nothing because we are empty
case 0: break; case 0: break;
case 1: obj(unchecked_get<T1>()); break; case 1: invoke_on(obj,unchecked_get<T1>()); break;
case 2: obj(unchecked_get<T2>()); break; case 2: invoke_on(obj,unchecked_get<T2>()); break;
case 3: obj(unchecked_get<T3>()); break; case 3: invoke_on(obj,unchecked_get<T3>()); break;
case 4: obj(unchecked_get<T4>()); break; case 4: invoke_on(obj,unchecked_get<T4>()); break;
case 5: obj(unchecked_get<T5>()); break; case 5: invoke_on(obj,unchecked_get<T5>()); break;
case 6: obj(unchecked_get<T6>()); break; case 6: invoke_on(obj,unchecked_get<T6>()); break;
case 7: obj(unchecked_get<T7>()); break; case 7: invoke_on(obj,unchecked_get<T7>()); break;
case 8: obj(unchecked_get<T8>()); break; case 8: invoke_on(obj,unchecked_get<T8>()); break;
case 9: obj(unchecked_get<T9>()); break; case 9: invoke_on(obj,unchecked_get<T9>()); break;
case 10: obj(unchecked_get<T10>()); break; case 10: invoke_on(obj,unchecked_get<T10>()); break;
case 11: obj(unchecked_get<T11>()); break; case 11: invoke_on(obj,unchecked_get<T11>()); break;
case 12: obj(unchecked_get<T12>()); break; case 12: invoke_on(obj,unchecked_get<T12>()); break;
case 13: obj(unchecked_get<T13>()); break; case 13: invoke_on(obj,unchecked_get<T13>()); break;
case 14: obj(unchecked_get<T14>()); break; case 14: invoke_on(obj,unchecked_get<T14>()); break;
case 15: obj(unchecked_get<T15>()); break; case 15: invoke_on(obj,unchecked_get<T15>()); break;
case 16: obj(unchecked_get<T16>()); break; case 16: invoke_on(obj,unchecked_get<T16>()); break;
case 17: obj(unchecked_get<T17>()); break; case 17: invoke_on(obj,unchecked_get<T17>()); break;
case 18: obj(unchecked_get<T18>()); break; case 18: invoke_on(obj,unchecked_get<T18>()); break;
case 19: obj(unchecked_get<T19>()); break; case 19: invoke_on(obj,unchecked_get<T19>()); break;
case 20: obj(unchecked_get<T20>()); break; case 20: invoke_on(obj,unchecked_get<T20>()); break;
} }
} }
...@@ -451,29 +476,29 @@ namespace dlib ...@@ -451,29 +476,29 @@ namespace dlib
// do nothing because we are empty // do nothing because we are empty
case 0: break; case 0: break;
case 1: obj(unchecked_get<T1>()); break; case 1: invoke_on(obj,unchecked_get<T1>()); break;
case 2: obj(unchecked_get<T2>()); break; case 2: invoke_on(obj,unchecked_get<T2>()); break;
case 3: obj(unchecked_get<T3>()); break; case 3: invoke_on(obj,unchecked_get<T3>()); break;
case 4: obj(unchecked_get<T4>()); break; case 4: invoke_on(obj,unchecked_get<T4>()); break;
case 5: obj(unchecked_get<T5>()); break; case 5: invoke_on(obj,unchecked_get<T5>()); break;
case 6: obj(unchecked_get<T6>()); break; case 6: invoke_on(obj,unchecked_get<T6>()); break;
case 7: obj(unchecked_get<T7>()); break; case 7: invoke_on(obj,unchecked_get<T7>()); break;
case 8: obj(unchecked_get<T8>()); break; case 8: invoke_on(obj,unchecked_get<T8>()); break;
case 9: obj(unchecked_get<T9>()); break; case 9: invoke_on(obj,unchecked_get<T9>()); break;
case 10: obj(unchecked_get<T10>()); break; case 10: invoke_on(obj,unchecked_get<T10>()); break;
case 11: obj(unchecked_get<T11>()); break; case 11: invoke_on(obj,unchecked_get<T11>()); break;
case 12: obj(unchecked_get<T12>()); break; case 12: invoke_on(obj,unchecked_get<T12>()); break;
case 13: obj(unchecked_get<T13>()); break; case 13: invoke_on(obj,unchecked_get<T13>()); break;
case 14: obj(unchecked_get<T14>()); break; case 14: invoke_on(obj,unchecked_get<T14>()); break;
case 15: obj(unchecked_get<T15>()); break; case 15: invoke_on(obj,unchecked_get<T15>()); break;
case 16: obj(unchecked_get<T16>()); break; case 16: invoke_on(obj,unchecked_get<T16>()); break;
case 17: obj(unchecked_get<T17>()); break; case 17: invoke_on(obj,unchecked_get<T17>()); break;
case 18: obj(unchecked_get<T18>()); break; case 18: invoke_on(obj,unchecked_get<T18>()); break;
case 19: obj(unchecked_get<T19>()); break; case 19: invoke_on(obj,unchecked_get<T19>()); break;
case 20: obj(unchecked_get<T20>()); break; case 20: invoke_on(obj,unchecked_get<T20>()); break;
} }
} }
...@@ -489,29 +514,29 @@ namespace dlib ...@@ -489,29 +514,29 @@ namespace dlib
// do nothing because we are empty // do nothing because we are empty
case 0: break; case 0: break;
case 1: obj(unchecked_get<T1>()); break; case 1: invoke_on(obj,unchecked_get<T1>()); break;
case 2: obj(unchecked_get<T2>()); break; case 2: invoke_on(obj,unchecked_get<T2>()); break;
case 3: obj(unchecked_get<T3>()); break; case 3: invoke_on(obj,unchecked_get<T3>()); break;
case 4: obj(unchecked_get<T4>()); break; case 4: invoke_on(obj,unchecked_get<T4>()); break;
case 5: obj(unchecked_get<T5>()); break; case 5: invoke_on(obj,unchecked_get<T5>()); break;
case 6: obj(unchecked_get<T6>()); break; case 6: invoke_on(obj,unchecked_get<T6>()); break;
case 7: obj(unchecked_get<T7>()); break; case 7: invoke_on(obj,unchecked_get<T7>()); break;
case 8: obj(unchecked_get<T8>()); break; case 8: invoke_on(obj,unchecked_get<T8>()); break;
case 9: obj(unchecked_get<T9>()); break; case 9: invoke_on(obj,unchecked_get<T9>()); break;
case 10: obj(unchecked_get<T10>()); break; case 10: invoke_on(obj,unchecked_get<T10>()); break;
case 11: obj(unchecked_get<T11>()); break; case 11: invoke_on(obj,unchecked_get<T11>()); break;
case 12: obj(unchecked_get<T12>()); break; case 12: invoke_on(obj,unchecked_get<T12>()); break;
case 13: obj(unchecked_get<T13>()); break; case 13: invoke_on(obj,unchecked_get<T13>()); break;
case 14: obj(unchecked_get<T14>()); break; case 14: invoke_on(obj,unchecked_get<T14>()); break;
case 15: obj(unchecked_get<T15>()); break; case 15: invoke_on(obj,unchecked_get<T15>()); break;
case 16: obj(unchecked_get<T16>()); break; case 16: invoke_on(obj,unchecked_get<T16>()); break;
case 17: obj(unchecked_get<T17>()); break; case 17: invoke_on(obj,unchecked_get<T17>()); break;
case 18: obj(unchecked_get<T18>()); break; case 18: invoke_on(obj,unchecked_get<T18>()); break;
case 19: obj(unchecked_get<T19>()); break; case 19: invoke_on(obj,unchecked_get<T19>()); break;
case 20: obj(unchecked_get<T20>()); break; case 20: invoke_on(obj,unchecked_get<T20>()); break;
} }
} }
......
dlib/type_safe_union/type_safe_union_kernel_abstract.h
View file @ 06dd40d3
...@@ -13,25 +13,25 @@ namespace dlib ...@@ -13,25 +13,25 @@ namespace dlib
template < template <
typename T1, typename T1,
typename T2 = T1, typename T2 = _void, // _void indicates parameter not used.
typename T3 = T1, typename T3 = _void,
typename T4 = T1, typename T4 = _void,
typename T5 = T1, typename T5 = _void,
typename T6 = T1, typename T6 = _void,
typename T7 = T1, typename T7 = _void,
typename T8 = T1, typename T8 = _void,
typename T9 = T1, typename T9 = _void,
typename T10 = T1, typename T10 = _void,
typename T11 = T1, typename T11 = _void,
typename T12 = T1, typename T12 = _void,
typename T13 = T1, typename T13 = _void,
typename T14 = T1, typename T14 = _void,
typename T15 = T1, typename T15 = _void,
typename T16 = T1, typename T16 = _void,
typename T17 = T1, typename T17 = _void,
typename T18 = T1, typename T18 = _void,
typename T19 = T1, typename T19 = _void,
typename T20 = T1 typename T20 = _void
> >
class type_safe_union : noncopyable class type_safe_union : noncopyable
{ {
......
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