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      std::showpoint, std::noshowpoint

      De cppreference.com
      < cpp‎ | io‎ | manip

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      C++
       
      D'entrée / sortie de bibliothèque
      I / O manipulateurs
      C-style I / O
      Tampons
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      Buffers
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      basic_streambuf
      basic_filebuf
      basic_stringbuf
      strstreambuf (obsolète)
      Cours d'eau
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      Streams
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      Abstractions
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      Abstractions
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      ios_base
      basic_ios
      basic_istream
      basic_ostream
      basic_iostream
      Fichier E / O
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      File I/O
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      basic_ifstream
      basic_ofstream
      basic_fstream
      Chaîne I / O
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      String I/O
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      basic_istringstream
      basic_ostringstream
      basic_stringstream
      Tableau I / O
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      Array I/O
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      istrstream (obsolète)
      ostrstream (obsolète)
      strstream (obsolète)
      Types
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      Types
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      streamoff
      streamsize
      fpos
      Interface catégorie d'erreur
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      Error category interface
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      iostream_category (C++11)
      io_errc (C++11)
       
      D'entrée / sortie manipulateurs
      À virgule flottante en forme
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      Floating-point formatting
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      showpoint
      noshowpoint
      setprecision
      Formatage entier
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      Integer formatting
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      Formatage booléen
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      Boolean formatting
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      boolalpha
      noboolalpha
      Largeur de champ et de contrôle de remplissage
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      Field width and fill control
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      Autre mise en forme
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      Other formatting
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      Traitement des espaces blancs
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      Whitespace processing
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      Sortie de rinçage
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      Output flushing
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      Indicateurs d'état manipulation
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      Status flags manipulation
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      Temps et d'argent I / O
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      Time and money I/O
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      get_money (C++11)
      get_time (C++11)
      put_money (C++11)
      put_time (C++11)
       
      Déclaré dans l'en-tête <ios>
      std::ios_base& showpoint(std::ios_base& str );
      		 (1)
      std::ios_base& noshowpoint(std::ios_base& str );
      		 (2)
      Active ou désactive l'inclusion inconditionnelle du point décimal en virgule flottante de sortie. N'a aucun effet sur entrée .
      Original:
      Enables or disables the unconditional inclusion of the decimal point character in floating-point output. Has no effect on input.
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      1)
      permet le drapeau showpoint dans le flux str comme si en appelant str.setf(std::ios_base::showpoint)
      Original:
      enables the showpoint flag in the stream str as if by calling str.setf(std::ios_base::showpoint)
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      2)
      désactive le drapeau showpoint dans le flux str comme si en appelant str.unsetf(std::ios_base::showpoint)
      Original:
      disables the showpoint flag in the stream str as if by calling str.unsetf(std::ios_base::showpoint)
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      Il s'agit d'un manipulateur d'E / S, il peut être appelé avec une expression telle que pour tout out << std::showpointout de std::basic_ostream type ou d'une expression telle que pour tout in >> std::showpointin de std::basic_istream type .
      Original:
      This is an I/O manipulator, it may be called with an expression such as out << std::showpoint for any out of type std::basic_ostream or with an expression such as in >> std::showpoint for any in of type std::basic_istream.
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      Sommaire

      [modifier]Paramètres

      str -
      référence aux flux d'entrée / sortie
      Original:
      reference to I/O stream
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      [modifier]Retourne la valeur

      str (référence au flux après la manipulation)
      Original:
      str (reference to the stream after manipulation)
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      [modifier]Exemple

      #include <iostream>int main(){std::cout<<"1.0 with showpoint: "<< std::showpoint<<1.0<<'\n'<<"1.0 with noshowpoint: "<< std::noshowpoint<<1.0<<'\n';}

      Résultat : 

      1.0 with showpoint: 1.00000 1.0 with noshowpoint: 1

      [modifier]Voir aussi

      efface les drapeaux ios_base spécifiées
      Original:
      clears the specified ios_base flags
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      (fonction)[edit]
      fixe les drapeaux ios_base spécifiées
      Original:
      sets the specified ios_base flags
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      (fonction)[edit]
      Récupérée de « https://fr.cppreference.com/mwiki/index.php?title=cpp/io/manip/showpoint&oldid=48424 »
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