C language

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This is a brief reference of available C constructs.

[Bearbeiten] Allgemeine Themen

[Bearbeiten] Preprocessor

[Bearbeiten] Kommentare

[Bearbeiten] Keywords

[Bearbeiten] ASCII-Tabelle

[Bearbeiten] Escape-Sequenzen

[Bearbeiten] Geschichte der C

[Bearbeiten] Flusskontrolle

[Bearbeiten] Bedingte Ausführung Aussagen

Different code paths are executed according to the value of given expression

• if führt Code bedingt

  Original:

  if executes code conditionally

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• switch führt Code entsprechend dem Wert eines ganzzahligen Argument

  Original:

  switch executes code according to the value of an integral argument

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[Bearbeiten] Iterationsanweisungen

The same code is executed several times

• for executes loop
• while führt Schleife, die Überprüfung Zustand vor jeder Iteration

  Original:

  while executes loop, checking condition before each iteration

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• <div class="t-tr-text">do-while

  Original:

  do-while

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  führt Schleife, die Überprüfung Zustand nach jeder Iteration
  Original:

  do-while

  Original:

  do-while

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  </div> executes loop, checking condition after each iteration

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[Bearbeiten] Gehe Aussagen

Continue execution at a different location

• continue überspringt den restlichen Teil des Körpers umgebende Schleife

  Original:

  continue skips the remaining part of the enclosing loop body

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• break beendet die umschließende Schleife

  Original:

  break terminates the enclosing loop

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• goto wird die Ausführung an einem anderen Ort

  Original:

  goto continues execution in another location

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• return beendet die Ausführung des umschließenden Funktion

  Original:

  return terminates execution of the enclosing function

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[Bearbeiten] Funktionen

The same code can be reused at different locations in the program

• <div class="t-tr-text"> Funktion Erklärung
  Original:

  function declaration

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  </div> declares a function
• <div class="t-tr-text"> inline-Spezifizierer
  Original:

  inline specifier

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  </div> hints the compiler to insert a function's body directly into the calling code

[Bearbeiten] Types

• <div class="t-tr-text"> Grundtypen
  Original:

  fundamental types

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  </div> defines basic character, integer and floating point types
• <div class="t-tr-text"> Zeigertypen
  Original:

  pointer types

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  </div>, holding a memory location
• <div class="t-tr-text"> zusammengesetzte Typen
  Original:

  compound types

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  </div> defines types, holding several data members (essentially the same as class)
• <div class="t-tr-text"> Aufzählungstypen
  Original:

  enumeration types

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  </div> defines types, that are able to hold only one of the specified values
• <div class="t-tr-text"> union-Typen
  Original:

  union types

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  </div> defines types, that can hold data in several representations
• <div class="t-tr-text"> Funktionstypen

  Original:

  function types

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  definieren Funktionsaufruf Unterschriften, das ist die Art von Argumenten und die Rückgabe-Typ
  Original:

  Funktionstypen

  Original:

  function types

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  </div> define function call signatures, that is the types of arguments and the return type

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[Bearbeiten] Specifiers

• <div class="t-tr-text"> cv Planer
  Original:

  cv specifiers

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  </div> specifies constness and volatility of a type
• <div class="t-tr-text"> Storage-Class-Planer
  Original:

  storage-class specifiers

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  </div> specifies storage duration and linkage of a type
• <div class="t-tr-text"> alignas Spezifizierer

  Original:

  alignas specifier

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  gibt an, dass der Speicher für die Variable durch bestimmte Menge (Seit C99) ausgerichtet werden soll
  Original:

  alignas Spezifizierer

  Original:

  alignas specifier

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  </div> specifies that the storage for the variable should be aligned by specific amount (Seit C99)

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[Bearbeiten] Literale

Literals are the tokens of a C program that represent constant values, embedded in the source code.

• <div class="t-tr-text">Integer-Literale

  Original:

  integer literals

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  sind dezimal, oktal oder Hexadezimalzahlen vom Typ Integer .
  Original:

  Integer-Literale

  Original:

  integer literals

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  </div> are decimal, octal, or hexadecimal numbers of integer type.

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• <div class="t-tr-text">Zeichenliterale
  Original:

  character literals

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  </div> are individual characters of type char, char16_t, char32_t, or wchar_t.
• <div class="t-tr-text">Fließkomma-Literale

  Original:

  floating-point literals

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  sind Werte vom Typ float, double oder long double
  Original:

  Fließkomma-Literale

  Original:

  floating-point literals

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  </div> are values of type float, double, or long double

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• <div class="t-tr-text">Zeichenfolgenliterale
  Original:

  string literals

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  </div> are sequences of characters, which may be narrow, multibyte, or wide.
• <div class="t-tr-text">boolean Literale
  Original:

  boolean literals

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  </div> are values of type bool, that is true and false (Seit C99)
• <div class="t-tr-text">Literale Benutzer definiert werden

  Original:

  user-defined literals

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  sind konstante Werte der vom Benutzer angegebenen Typs (Seit C99)
  Original:

  Literale Benutzer definiert werden

  Original:

  user-defined literals

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  </div> are constant values of user-specified type (Seit C99)

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[Bearbeiten] Expressions

• <div class="t-tr-text">Reihenfolge der Auswertung
  Original:

  order of evaluation

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  </div> of arguments and subexpressions specified the order in which intermediate results are obtained.
• operators erlauben die Verwendung der Syntax in der Mathematik allgemein gefunden

  Original:

  operators allow the use of syntax commonly found in mathematics

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• <div class="t-tr-text"> Operatorvorrang
  Original:

  operator precedence

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  </div> the order in which operators are bound to their arguments
• <div class="t-tr-text"> alternative Darstellungen
  Original:

  alternative representations

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  </div> alternative spellings for some of the operators

[Bearbeiten] Utilities

• <div class="t-tr-text"> typedef Deklaration
  Original:

  typedef declaration

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  </div> creates a synonym for a type
• <div class="t-tr-text"> Attribute
  Original:

  attributes

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  </div> defines additional information about variable (Seit C99)

• <div class="t-tr-text"> Standard-Konvertierungen

  Original:

  standard conversions

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  impliziten Konvertierungen von einem Typ in einen anderen
  Original:

  Standard-Konvertierungen

  Original:

  standard conversions

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  </div> implicit conversions from one type to another

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[Bearbeiten] Verschiedenes

• <div class="t-tr-text">Inline Montage
  Original:

  Inline assembly

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  </div>