std::left, std::right, std::internal
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Déclaré dans l'en-tête <ios> | ||
std::ios_base& left(std::ios_base& str ); | (1) | |
std::ios_base& right(std::ios_base& str ); | (2) | |
std::ios_base& internal(std::ios_base& str ); | (3) | |
Modifie le positionnement par défaut des caractères de remplissage.
1) left et right s'appliquer à n'importe quelle sortie, internal s'applique en entier, sortie en virgule flottante et monétaire. N'a aucun effet sur entrée .Original:
Modifies the default positioning of the fill characters.
left and right apply to any output, internal applies to integer, floating-point, and monetary output. Has no effect on input.The text has been machine-translated via Google Translate.
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définit le
2) adjustfield de la str flux de left comme si en appelant str.setf(std::ios_base::left, std::ios_base::adjustfield)Original:
sets the
adjustfield of the stream str to left as if by calling str.setf(std::ios_base::left, std::ios_base::adjustfield)The text has been machine-translated via Google Translate.
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définit le
3) adjustfield de la str flux de right comme si en appelant str.setf(std::ios_base::right, std::ios_base::adjustfield)Original:
sets the
adjustfield of the stream str to right as if by calling str.setf(std::ios_base::right, std::ios_base::adjustfield)The text has been machine-translated via Google Translate.
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définit le
adjustfield de la str flux de internal comme si en appelant str.setf(std::ios_base::internal, std::ios_base::adjustfield)Original:
sets the
adjustfield of the stream str to internal as if by calling str.setf(std::ios_base::internal, std::ios_base::adjustfield)The text has been machine-translated via Google Translate.
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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::left
out de std::basic_ostream type ou d'une expression telle que pour tout in >> std::leftin de std::basic_istream type .Original:
This is an I/O manipulator, it may be called with an expression such as out << std::left for any
out of type std::basic_ostream or with an expression such as in >> std::left for any in of type std::basic_istream.The text has been machine-translated via Google Translate.
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Sommaire |
[modifier]Paramètres
| str | - | référence aux flux d'entrée / sortie Original: reference to I/O stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
[modifier]Retourne la valeur
str (référence au flux après la manipulation)Original:
str (reference to the stream after manipulation)The text has been machine-translated via Google Translate.
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[modifier]Exemple
#include <iostream>#include <iomanip>#include <locale>int main(){std::cout.imbue(std::locale("en_US.utf8"));std::cout<<"Left fill:\n"<< std::left<<std::setfill('*')<<std::setw(12)<<-1.23<<'\n'<<std::setw(12)<<std::hex<<std::showbase<<42<<'\n'<<std::setw(12)<<std::put_money(123, true)<<"\n\n"; std::cout<<"Internal fill:\n"<< std::internal<<std::setw(12)<<-1.23<<'\n'<<std::setw(12)<<42<<'\n'<<std::setw(12)<<std::put_money(123, true)<<"\n\n"; std::cout<<"Right fill:\n"<< std::right<<std::setw(12)<<-1.23<<'\n'<<std::setw(12)<<42<<'\n'<<std::setw(12)<<std::put_money(123, true)<<'\n';}
Résultat :
Left fill: -1.23******* 0x2a******** USD *1.23*** Internal fill: -*******1.23 0x********2a USD ****1.23 Right fill: *******-1.23 ********0x2a ***USD *1.23
[modifier]Voir aussi
modifie la largeur de l'entrée suivante / champ de sortie Original: changes the width of the next input/output field The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction) | |
modifie le caractère de remplissage Original: changes the fill character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction générique) | |
