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    Function template

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    C++
     
    Sprache C++
    Allgemeine Themen
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    General topics
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    Flusskontrolle
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    Flow control
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    Bedingte Ausführung Aussagen
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    Conditional execution statements
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    Iteration statements
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    Gehe Aussagen
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    Jump statements
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    Funktionen
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    Functions
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    Funktion Erklärung
    Lambda-Funktion Erklärung
    Funktions-Template
    inline-Spezifizierer
    Exception-Spezifikationen(veraltet)
    noexcept Spezifizierer(C++11)
    Ausnahmen
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    Exceptions
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    Types
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    Types
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    decltype specifier(C++11)
    Specifiers
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    Specifiers
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    cv Planer
    Lagerdauer Planer
    constexpr Spezifizierer(C++11)
    auto Spezifizierer(C++11)
    alignas Spezifizierer(C++11)
    Initialisierung
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    Initialization
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    Expressions
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    alternative Darstellungen
    Utilities
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    Utilities
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    Types
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    Types
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    typedef declaration
    Typ Aliasdeklaration(C++11)
    Attribute(C++11)
    Wirft
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    Casts
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    impliziten Konvertierungen
    const_cast conversion
    static_cast conversion
    dynamic_cast conversion
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    Speicherzuweisung
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    Memory allocation
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    Classes
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    Classes
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    Class-spezifische Funktion Eigenschaften
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    Class-specific function properties
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    Besondere Member-Funktionen
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    Special member functions
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    Templates
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    Templates
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    Klassen-Template
    Funktions-Template
    Template-Spezialisierung
    Parameter Packs(C++11)
    Verschiedenes
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    Miscellaneous
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    Inline Montage
     

    Inhaltsverzeichnis

    [Bearbeiten]Beschreibung

    Vorlagen können generische Funktion Design, dass die Arbeit auf verschiedene Arten, ohne die Notwendigkeit von Umschreiben es mehrere Male
    Original:
    Templates allow generic function design that work on various types, without the need of rewriting it multiple times
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    [Bearbeiten]Syntax

    [Bearbeiten]Erklärung

    template<template_arguments>function_declaration (1)
    exporttemplate<template_arguments>function_declaration (2) (bis C + +11)
    # Template Funktion Erklärung Referenzfehler: Für ein <ref>-Tag fehlt ein schließendes </ref>-Tag.
    Original:
    {{{2}}}
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    # Exportierte Template-Funktion Erklärung. Die Funktion Körper kann in einer separaten Datei definiert werden Referenzfehler: Für ein <ref>-Tag fehlt ein schließendes </ref>-Tag.
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    {{{2}}}
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    [Bearbeiten]Argumente

    classidentifier (1)
    typenameidentifier (2)
    integral_typeidentifier (3)
    classidentifier=type_name (4) (seit C++11)
    typenameidentifier=type_name (5) (seit C++11)
    integral_typeidentifier=const_expr (6) (seit C++11)
    1-2)
    Innerhalb der Funktion identifier kann als eine Art verwendet werden
    Original:
    Inside the function identifier can be used as a type
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    3)
    Innerhalb der Funktion identifier kann als Konstante eingesetzt werden
    Original:
    Inside the function identifier can be used as a constant
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    4-6)
    Default-Argumente
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    Default arguments
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    [Bearbeiten]Spezialisierung

    This section is incomplete
    Reason: partial specialization
    template<>retfunction_name<template_args>(func_args)body
    Spezialisierung ändert die Umsetzung der Template-Funktion für bestimmte Template-Parameter
    Original:
    Specialization changes the implementation of the template function for specific template parameters
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    [Bearbeiten]Rufen

    function_name<template_args>(func_args) (1)
    function_name(unambiguous_func_args) (2)
    # Explizite Template-Argumente, wenn func_args nicht perfekt überein mit den Typen wie in der Vorlage Erklärung (mit dem angegebenen template_args) die übliche Casting auftreten
    Original:
    # Explicit template arguments, if func_args don't match perfectly with the types as in the template declaration (with the given template_args) the usual casting will occur
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    # Implicit Template-Argumente, von den Funktionsargumente abgeleitet. Keine Mehrdeutigkeit vorhanden sein können
    Original:
    # Implicit template arguments, deduced from the function arguments. No ambiguity can be present
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    This section is incomplete
    Reason: better explanation/example

    [Bearbeiten]Beispiel

    This section is incomplete
    [edit]
    template<typename T>struct S {template<typename U>void foo(){}};   template<typename T>void bar(){ S<T>s; s.foo<T>();// error: < parsed as less than operator s.template foo<T>();// OK}


    [Bearbeiten]Siehe auch

    [Bearbeiten]Notes

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    Von „https://de.cppreference.com/mwiki/index.php?title=cpp/language/function_template&oldid=27079“
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