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Upgrade: now able to reformulate the tuple_like concept

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Now this draft seems ready to be put into actual use in the code base.
Furthermore, a generic ''get adapter'' is introduced to level the difference
between both tolerated forms of element access, also working correctly
for const and RValue references
This commit is contained in:
Fischlurch 2025-06-23 23:02:15 +02:00
parent bb0b73e2a7
commit 3a1f64ec41
2 changed files with 148 additions and 78 deletions
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116
research/try.cpp
View file

@ -12,6 +12,8 @@
/** @file try.cpp
* Develop a concept to detect _tuple-like_ classes, based on the requirements
* of the »tuple protocol«. Using some ideas from [Stackoverflow] as starting point.
* However, we model both a _friend function_ `get` and a similar member function
* as alternatives for element access, and we break down the checks into sub-concepts.
* [Stackoverflow]: https://stackoverflow.com/q/68443804/444796
*/
@ -36,45 +38,63 @@ namespace meta {
{ std::tuple_size<TUP>::value } -> std::convertible_to<size_t>;
};
template<class TUP, std::size_t N>
template<class TUP, std::size_t idx>
concept tuple_adl_accessible = requires(TUP tup)
{
typename std::tuple_element_t<N, TUP>;
{ get<N>(tup) } -> std::convertible_to<std::tuple_element_t<N, TUP>&>;
typename std::tuple_element_t<idx, TUP>;
{ get<idx>(tup) } -> std::convertible_to<std::tuple_element_t<idx, TUP>&>;
};
template<class TUP, std::size_t N>
template<class TUP, std::size_t idx>
concept tuple_mem_accessible = requires(TUP tup)
{
typename std::tuple_element_t<N, TUP>;
{ tup.template get<N>() } -> std::convertible_to<std::tuple_element_t<N, TUP>&>;
typename std::tuple_element_t<idx, TUP>;
{ tup.template get<idx>() } -> std::convertible_to<std::tuple_element_t<idx, TUP>&>;
};
template<class TUP, std::size_t N>
concept tuple_accessible = tuple_mem_accessible<TUP,N> or tuple_adl_accessible<TUP,N>;
template<class TUP, std::size_t idx>
concept tuple_element_accessible = tuple_mem_accessible<TUP,idx> or tuple_adl_accessible<TUP,idx>;
template<class TUP>
class AndAll
{
template<size_t...idx>
static constexpr bool
canAccessAll (std::index_sequence<idx...>)
{
return (tuple_accessible<TUP, idx> and ...);
}
using IdxSeq = typename ElmTypes<TUP>::Idx;
public:
static constexpr bool can_AccessElement = canAccessAll(IdxSeq{});
};
template<class TUP>
concept tuple_like = not is_reference_v<TUP>
and tuple_sized<remove_cv_t<TUP>>
and AndAll<remove_cv_t<TUP>>::can_AccessElement;
concept tuple_accessible =
tuple_sized<TUP> and
WithIdxSeq<std::tuple_size_v<TUP>>::andAll([](auto idx)
{
return tuple_element_accessible<TUP,idx>;
});
template<class TUP>
concept tuple_like = not is_reference_v<TUP>
and tuple_sized<remove_cv_t<TUP>>
and tuple_accessible<remove_cv_t<TUP>>;
template<std::size_t idx, class TUP>
requires(tuple_like<std::remove_reference_t<TUP>>)
decltype(auto)
get (TUP&& tup)
{
using Tup = std::remove_reference_t<TUP>;
static_assert (0 < std::tuple_size_v<Tup>);
if constexpr (tuple_mem_accessible<Tup,0>)
{
if constexpr (std::is_reference_v<TUP>)
return tup.template get<idx>();
else
{ // return value copy when tuple given as RValue
using Elm = std::tuple_element_t<idx, TUP>;
Elm elm(tup.template get<idx>());
return elm;
}
}
else
{
using std::get;
return get<idx> (std::forward<TUP> (tup));
}
}
}}//namespace lib::meta
@ -103,7 +123,7 @@ show()
int
main (int, char**)
{
using Tup = std::tuple<long>;
using Tup = std::tuple<long,short>;
using Arr = std::array<int,3>;
using Hetero = lib::HeteroData<int,string>::Chain<short>::ChainExtent<bool,lib::meta::Nil>::ChainType;
@ -112,11 +132,11 @@ main (int, char**)
SHOW_EXPR((lib::meta::tuple_sized<Hetero> ))
SHOW_EXPR((lib::meta::tuple_sized<int> ))
SHOW_EXPR((lib::meta::tuple_accessible<Tup,0>))
// SHOW_EXPR((lib::meta::tuple_accessible<Tup,2>))
SHOW_EXPR((lib::meta::tuple_accessible<Hetero,0>))
SHOW_EXPR((lib::meta::AndAll<Tup>::can_AccessElement))
SHOW_EXPR((lib::meta::AndAll<Hetero>::can_AccessElement))
SHOW_EXPR((lib::meta::tuple_element_accessible<Tup,0>))
// SHOW_EXPR((lib::meta::tuple_element_accessible<Tup,2>))
SHOW_EXPR((lib::meta::tuple_element_accessible<Hetero,0>))
SHOW_EXPR((lib::meta::tuple_accessible<Tup>))
SHOW_EXPR((lib::meta::tuple_accessible<Hetero>))
SHOW_EXPR((lib::meta::tuple_like<Tup> ))
SHOW_EXPR((lib::meta::tuple_like<Arr> ))
@ -128,9 +148,25 @@ main (int, char**)
show<Hetero>();
show<int>();
SHOW_EXPR(bool(std::is_integral_v<int>))
SHOW_EXPR(bool(std::is_integral_v<char>))
SHOW_EXPR(bool(std::is_integral_v<double>))
SHOW_EXPR((std::tuple_size_v<const Tup>))
using Elm1 = std::tuple_element_t<1, const Tup>;
SHOW_TYPE(Elm1)
using TupConstSeq = lib::meta::ElmTypes<const Tup>::Seq;
SHOW_TYPE(TupConstSeq)
using T1 = decltype(lib::meta::get<0> (std::declval<Tup>()));
SHOW_TYPE(T1)
using T2 = decltype(lib::meta::get<0> (std::declval<Tup&>()));
SHOW_TYPE(T2)
using T3 = decltype(lib::meta::get<0> (std::declval<Tup const&>()));
SHOW_TYPE(T3)
using H1 = decltype(lib::meta::get<4> (std::declval<Hetero>()));
SHOW_TYPE(H1)
using H2 = decltype(lib::meta::get<4> (std::declval<Hetero&>()));
SHOW_TYPE(H2)
using H3 = decltype(lib::meta::get<4> (std::declval<Hetero const&>()));
SHOW_TYPE(H3)
cout << "\n.gulp." <<endl;
return 0;

110
wiki/thinkPad.ichthyo.mm
View file

@ -166126,21 +166126,21 @@ Since then others have made contributions, see the log for the history.</font></
</html></richcontent>
</node>
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<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1750173439337" ID="ID_1832825819" MODIFIED="1750437317253" TEXT="Schritt-2 : concept tuple_like einf&#xfc;hren">
<node BACKGROUND_COLOR="#c8c0b6" COLOR="#435e98" CREATED="1750173439337" ID="ID_1832825819" MODIFIED="1750719257089" STYLE="fork" TEXT="Schritt-2 : concept tuple_like einf&#xfc;hren">
<icon BUILTIN="full-2"/>
<node CREATED="1750603208092" ID="ID_1027099855" MODIFIED="1750603215948" TEXT="Design-Fragen">
<node BACKGROUND_COLOR="#d2a99c" COLOR="#683b31" CREATED="1750603078830" ID="ID_1129626446" MODIFIED="1750606092989" TEXT="Basis f&#xfc;r Concept tuple_like ?">
<node COLOR="#435e98" CREATED="1750603208092" ID="ID_1027099855" MODIFIED="1750719264060" TEXT="Design-Fragen">
<node BACKGROUND_COLOR="#d2a99c" COLOR="#683b31" CREATED="1750603078830" ID="ID_1129626446" MODIFIED="1750719254728" TEXT="Basis f&#xfc;r Concept tuple_like ?">
<arrowlink COLOR="#4989d4" DESTINATION="ID_141049889" ENDARROW="Default" ENDINCLINATION="-494;29;" ID="Arrow_ID_789791822" STARTARROW="None" STARTINCLINATION="-1100;-64;"/>
<icon BUILTIN="help"/>
<node CREATED="1750603270220" ID="ID_1796957923" MODIFIED="1750603293611" TEXT="minimal-Heuristik : tuple_size"/>
<node CREATED="1750603306121" ID="ID_1429160230" MODIFIED="1750603318670" TEXT="hinreichend vollst&#xe4;ndig: Zugriff"/>
<node CREATED="1750603344042" ID="ID_1866646887" MODIFIED="1750603365810" TEXT="Zweck: Datenzugriff">
<node CREATED="1750603367100" ID="ID_730035620" MODIFIED="1750603395784" TEXT="per structured Binding"/>
<node CREATED="1750603384299" ID="ID_1020038748" MODIFIED="1750603392055" TEXT="per meta-Iteratrion"/>
<node CREATED="1750603270220" ID="ID_1796957923" MODIFIED="1750719254728" TEXT="minimal-Heuristik : tuple_size"/>
<node CREATED="1750603306121" ID="ID_1429160230" MODIFIED="1750719254728" TEXT="hinreichend vollst&#xe4;ndig: Zugriff"/>
<node CREATED="1750603344042" ID="ID_1866646887" MODIFIED="1750719254728" TEXT="Zweck: Datenzugriff">
<node CREATED="1750603367100" ID="ID_730035620" MODIFIED="1750719254728" TEXT="per structured Binding"/>
<node CREATED="1750603384299" ID="ID_1020038748" MODIFIED="1750719254728" TEXT="per meta-Iteratrion"/>
</node>
<node BACKGROUND_COLOR="#e0ceaa" COLOR="#690f14" CREATED="1750603402218" ID="ID_470643972" MODIFIED="1750606109292" TEXT="Hindernisse">
<node BACKGROUND_COLOR="#e0ceaa" COLOR="#690f14" CREATED="1750603402218" ID="ID_470643972" MODIFIED="1750719254728" TEXT="Hindernisse">
<icon BUILTIN="clanbomber"/>
<node CREATED="1750603406649" ID="ID_722727058" MODIFIED="1750604154381" TEXT="die Element-Typen sind heterogen">
<node CREATED="1750603406649" ID="ID_722727058" MODIFIED="1750719254728" TEXT="die Element-Typen sind heterogen">
<richcontent TYPE="NOTE"><html>
<head/>
<body>
@ -166150,9 +166150,9 @@ Since then others have made contributions, see the log for the history.</font></
</body>
</html></richcontent>
</node>
<node CREATED="1750604156028" ID="ID_1521006525" MODIFIED="1750604169583" TEXT="structued Bindings sind f&#xfc;r den konkreten Einhzelfall gedacht"/>
<node CREATED="1750604220710" ID="ID_440079383" MODIFIED="1750604274377" TEXT="structured Bindings und das Tupel-Protokoll sind zweierlei"/>
<node CREATED="1750604614495" ID="ID_1340240394" MODIFIED="1750606165686" TEXT="es ist unklar wohin das &#xfc;berhaupt f&#xfc;hrt">
<node CREATED="1750604156028" ID="ID_1521006525" MODIFIED="1750719254728" TEXT="structued Bindings sind f&#xfc;r den konkreten Einhzelfall gedacht"/>
<node CREATED="1750604220710" ID="ID_440079383" MODIFIED="1750719254728" TEXT="structured Bindings und das Tupel-Protokoll sind zweierlei"/>
<node CREATED="1750604614495" ID="ID_1340240394" MODIFIED="1750719254728" TEXT="es ist unklar wohin das &#xfc;berhaupt f&#xfc;hrt">
<richcontent TYPE="NOTE"><html>
<head/>
<body>
@ -166165,13 +166165,13 @@ Since then others have made contributions, see the log for the history.</font></
</node>
</node>
</node>
<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1750606050049" ID="ID_326674613" MODIFIED="1750606165686" TEXT="als Experiment / Erweiterung betrachten">
<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1750606050049" ID="ID_326674613" MODIFIED="1750719254728" TEXT="als Experiment / Erweiterung betrachten">
<linktarget COLOR="#845a67" DESTINATION="ID_326674613" ENDARROW="Default" ENDINCLINATION="21;-52;" ID="Arrow_ID_1130948047" SOURCE="ID_1340240394" STARTARROW="None" STARTINCLINATION="-77;5;"/>
<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
<icon BUILTIN="yes"/>
<node CREATED="1750606352138" ID="ID_395333940" MODIFIED="1750606364459" TEXT="m&#xf6;glichst neben die bestehenden Strukturen bauen"/>
<node CREATED="1750606379162" ID="ID_1298795914" MODIFIED="1750606392271" TEXT="beobachten was auf dieser Basis entsteht"/>
<node CREATED="1750606452227" ID="ID_1156552141" MODIFIED="1750606760885" TEXT="an structured Bindings anlehnen">
<node CREATED="1750606352138" ID="ID_395333940" MODIFIED="1750719254728" TEXT="m&#xf6;glichst neben die bestehenden Strukturen bauen"/>
<node CREATED="1750606379162" ID="ID_1298795914" MODIFIED="1750719254728" TEXT="beobachten was auf dieser Basis entsteht"/>
<node CREATED="1750606452227" ID="ID_1156552141" MODIFIED="1750719254728" TEXT="an structured Bindings anlehnen">
<richcontent TYPE="NOTE"><html>
<head/>
<body>
@ -166184,7 +166184,7 @@ Since then others have made contributions, see the log for the history.</font></
</body>
</html></richcontent>
</node>
<node CREATED="1750606686156" ID="ID_900094987" MODIFIED="1750606706321" TEXT="get()-Adapter bereitstellen">
<node CREATED="1750606686156" ID="ID_900094987" MODIFIED="1750719254728" TEXT="get()-Adapter bereitstellen">
<richcontent TYPE="NOTE"><html>
<head/>
<body>
@ -166196,19 +166196,19 @@ Since then others have made contributions, see the log for the history.</font></
</node>
</node>
</node>
<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1750443947483" ID="ID_58139169" MODIFIED="1750443961178" TEXT="schrittweise...">
<icon BUILTIN="pencil"/>
<node COLOR="#338800" CREATED="1750443954960" ID="ID_750458131" MODIFIED="1750443959664" TEXT="has_tuple_size">
<node COLOR="#338800" CREATED="1750443947483" ID="ID_58139169" MODIFIED="1750719254728" TEXT="schrittweise...">
<icon BUILTIN="button_ok"/>
<node COLOR="#338800" CREATED="1750443954960" ID="ID_750458131" MODIFIED="1750719254728" TEXT="has_tuple_size">
<icon BUILTIN="button_ok"/>
</node>
<node COLOR="#338800" CREATED="1750527186585" ID="ID_1525384931" MODIFIED="1750608058172" TEXT="Zugriff auf tuple_element_t">
<node COLOR="#338800" CREATED="1750527186585" ID="ID_1525384931" MODIFIED="1750719254728" TEXT="Zugriff auf tuple_element_t">
<icon BUILTIN="button_ok"/>
<node BACKGROUND_COLOR="#e0ceaa" COLOR="#690f14" CREATED="1750527194686" ID="ID_505645521" MODIFIED="1750607802335" TEXT="Problem: CV-Varianten">
<node BACKGROUND_COLOR="#e0ceaa" COLOR="#690f14" CREATED="1750527194686" ID="ID_505645521" MODIFIED="1750719254728" TEXT="Problem: CV-Varianten">
<icon BUILTIN="messagebox_warning"/>
<node CREATED="1750527215075" ID="ID_160799608" MODIFIED="1750527224453" TEXT="werden in der STL unterst&#xfc;tzt"/>
<node BACKGROUND_COLOR="#e0ceaa" COLOR="#940109" CREATED="1750527225378" ID="ID_934892679" MODIFIED="1750607814794" TEXT="typischerweise nicht f&#xfc;r custom-Typen?">
<node CREATED="1750527215075" ID="ID_160799608" MODIFIED="1750719254728" TEXT="werden in der STL unterst&#xfc;tzt"/>
<node BACKGROUND_COLOR="#e0ceaa" COLOR="#940109" CREATED="1750527225378" ID="ID_934892679" MODIFIED="1750719254728" TEXT="typischerweise nicht f&#xfc;r custom-Typen?">
<icon BUILTIN="help"/>
<node CREATED="1750527281789" ID="ID_270337751" MODIFIED="1750608012143" TEXT="eigentlich k&#xf6;nnte das generisch sein">
<node CREATED="1750527281789" ID="ID_270337751" MODIFIED="1750719254728" TEXT="eigentlich k&#xf6;nnte das generisch sein">
<richcontent TYPE="NOTE"><html>
<head/>
<body>
@ -166218,18 +166218,18 @@ Since then others have made contributions, see the log for the history.</font></
</body>
</html></richcontent>
</node>
<node CREATED="1750527289637" ID="ID_416596147" MODIFIED="1750527297966" TEXT="sehe aber nicht, da&#xdf; die STL sowas definiert"/>
<node CREATED="1750527289637" ID="ID_416596147" MODIFIED="1750719254728" TEXT="sehe aber nicht, da&#xdf; die STL sowas definiert"/>
</node>
</node>
<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1750527261050" ID="ID_11850475" MODIFIED="1750527277291" TEXT="sollte auf das Minimal-Kriterium beschr&#xe4;nken">
<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1750527261050" ID="ID_11850475" MODIFIED="1750719254728" TEXT="sollte auf das Minimal-Kriterium beschr&#xe4;nken">
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<icon BUILTIN="yes"/>
</node>
</node>
<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1750608204631" ID="ID_228997425" MODIFIED="1750608220478" STYLE="fork" TEXT="get()-Adapter entwerfen">
<icon BUILTIN="pencil"/>
<node COLOR="#338800" CREATED="1750608204631" ID="ID_228997425" MODIFIED="1750719254728" TEXT="get()-Adapter entwerfen">
<icon BUILTIN="button_ok"/>
</node>
<node COLOR="#338800" CREATED="1750608171148" ID="ID_645315221" MODIFIED="1750608181337" TEXT="experimental-Test funktioniert">
<node COLOR="#338800" CREATED="1750608171148" ID="ID_645315221" MODIFIED="1750719254728" TEXT="experimental-Test funktioniert">
<icon BUILTIN="button_ok"/>
</node>
</node>
@ -166239,7 +166239,8 @@ Since then others have made contributions, see the log for the history.</font></
<node CREATED="1750608225207" ID="ID_1091625286" MODIFIED="1750608242780" TEXT="auf tuple-helper.hpp konzentrieren">
<node CREATED="1750608253290" ID="ID_1066975990" MODIFIED="1750608258692" TEXT="bestehendes is_Structured f&#xe4;llt weg"/>
</node>
<node BACKGROUND_COLOR="#f0d5c5" COLOR="#990033" CREATED="1750613310659" ID="ID_1955387309" MODIFIED="1750613325702" TEXT="kann man forEachIDX erweitern auf AndAll ?">
<node BACKGROUND_COLOR="#c8c0b6" COLOR="#435e98" CREATED="1750613310659" ID="ID_1955387309" MODIFIED="1750716425187" TEXT="kann man forEachIDX erweitern auf AndAll ?">
<arrowlink COLOR="#3658ba" DESTINATION="ID_237548671" ENDARROW="Default" ENDINCLINATION="-339;14;" ID="Arrow_ID_280040051" STARTARROW="None" STARTINCLINATION="26;159;"/>
<icon BUILTIN="help"/>
<node CREATED="1750613329800" ID="ID_737752412" MODIFIED="1750613379696" TEXT="es st&#xf6;rt mich, wenn ich jetzt den Namen AndAll verwende">
<richcontent TYPE="NOTE"><html>
@ -166299,8 +166300,8 @@ Since then others have made contributions, see the log for the history.</font></
<icon BUILTIN="button_ok"/>
</node>
</node>
<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1750645066536" ID="ID_668574243" MODIFIED="1750645077745" TEXT="nun in der Codebasis schwenken">
<icon BUILTIN="flag-pink"/>
<node COLOR="#338800" CREATED="1750645066536" ID="ID_668574243" MODIFIED="1750716334876" TEXT="nun in der Codebasis schwenken">
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<node CREATED="1750645117460" ID="ID_1103267230" MODIFIED="1750645177258" TEXT="nett ... aber">
<richcontent TYPE="NOTE"><html>
@ -166316,17 +166317,50 @@ Since then others have made contributions, see the log for the history.</font></
</richcontent>
<icon BUILTIN="smiley-oh"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1750645178948" ID="ID_1910704680" MODIFIED="1750645270253" TEXT="es gibt n&#xe4;mlich bereits ein ElmTypes&lt;TUP&gt;::AndAll">
<node COLOR="#5b280f" CREATED="1750645178948" ID="ID_1910704680" MODIFIED="1750716337917" TEXT="es gibt n&#xe4;mlich bereits ein ElmTypes&lt;TUP&gt;::AndAll">
<icon BUILTIN="idea"/>
<icon BUILTIN="button_cancel"/>
<node CREATED="1750645202768" ID="ID_839783730" MODIFIED="1750645212812" TEXT="das nimmt eine Metafunktion mit einem Typ-Argument"/>
<node CREATED="1750645213479" ID="ID_854944912" MODIFIED="1750645228717" TEXT="also m&#xfc;&#xdf;te man den Check f&#xfc;r das concept nur entsprechend verpacken"/>
<node CREATED="1750645229565" ID="ID_1427627425" MODIFIED="1750645242030" TEXT="das w&#xfc;rde gehen per templated typedef"/>
<node BACKGROUND_COLOR="#f0d5c5" COLOR="#990033" CREATED="1750645244779" ID="ID_1784615021" MODIFIED="1750645258874" TEXT="wird es dadurch lesbar / klar genug?">
<icon BUILTIN="help"/>
<node COLOR="#5b280f" CREATED="1750696441576" ID="ID_600415424" MODIFIED="1750696600642" TEXT="NEIN! Henne oder Ei">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
das ist n&#228;mlich eine Spezialisierung, die dann bereits auf dieses Concept aufsetzen w&#252;rde...
</p>
<p>
und die interne Impl ist mehr oder weniger genau dasselbe, als wir zu Fu&#223; auch machen w&#252;rden, nur da&#223; wir dann an die Index-Seq gar nicht rankommen
</p>
</body>
</html>
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</node>
</node>
<node BACKGROUND_COLOR="#f0d5c5" COLOR="#990033" CREATED="1750697347620" ID="ID_1370775457" MODIFIED="1750697369572" TEXT="das ist sogar ein allgemeiner Einwand">
<icon BUILTIN="messagebox_warning"/>
<node CREATED="1750697373038" ID="ID_1486097802" MODIFIED="1750697405359" TEXT="sollte mein neues WithIdxSeq-Temlate nochmal umgestalten">
<node CREATED="1750697407507" ID="ID_272465602" MODIFIED="1750697427532" TEXT="es macht keinen Sinn, da den Sequenz-Typ als Parameter zu verwenden"/>
<node CREATED="1750697428362" ID="ID_401452341" MODIFIED="1750697437147" TEXT="denn tats&#xe4;chlich wird lediglich das N gebraucht"/>
</node>
<node CREATED="1750698200935" ID="ID_1509191948" MODIFIED="1750698231910" TEXT="dann k&#xf6;nnte ich als &#xbb;Seiteneingang&#xab; f&#xfc;r das Concept die tuple_size direkt angeben"/>
<node BACKGROUND_COLOR="#aeadcf" COLOR="#4b4398" CREATED="1750716354122" ID="ID_237548671" MODIFIED="1750716474614" TEXT="damit wird die Formulierung letztlich hinreichend sauber und generisch">
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</node>
<node CREATED="1750608261914" ID="ID_235249081" MODIFIED="1750608264567" TEXT="abl&#xf6;sen">
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1750716493566" ID="ID_1613585978" MODIFIED="1750716519435" TEXT="umziehen">
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<node CREATED="1750716497115" ID="ID_93053322" MODIFIED="1750716502874" TEXT="in tuple-helper.hpp"/>
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<node CREATED="1750608320496" ID="ID_575832691" MODIFIED="1750608321852" TEXT="enable_if_TupleProtocol"/>
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