std::strxfrm
De cppreference.com
 |
This page has been machine-translated from the English version of the wiki using Google Translate.
The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here. |
| Déclaré dans l'en-tête <cstring>
|
||
| std::size_t strxfrm( const char* dest, const char* src, std::size_t count ); |
||
Transforme la chaîne d'octets terminée par zéro pointé par
src dans le formulaire de mise en œuvre défini de telle sorte que la comparaison de deux chaînes transformées avec std::strcmp donne le même résultat que la comparaison des chaînes d'origine avec std::strcoll, dans la locale courante C .Original:
Transforms the null-terminated byte string pointed to by
src into the implementation-defined form such that comparing two transformed strings with std::strcmp gives the same result as comparing the original strings with std::strcoll, in the current C locale.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Les caractères
count première de la chaîne transformée de destination sont écrites, y compris le caractère nul final, et la longueur de la chaîne complète transformée est renvoyée, à l'exclusion du caractère nul final .Original:
The first
count characters of the transformed string are written to destination, including the terminating null character, and the length of the full transformed string is returned, excluding the terminating null character.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Si
count est 0, puis dest est autorisé à être un pointeur nul .Original:
If
count is 0, then dest is allowed to be a null pointer.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Sommaire |
[modifier] Notes
La bonne longueur de la mémoire tampon qui peut recevoir la chaîne entière est transformée 1+std::strxfrm(NULL, src, 0)
Original:
The correct length of the buffer that can receive the entire transformed string is 1+std::strxfrm(NULL, src, 0)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
[modifier] Paramètres
| dest | - | pointeur vers le premier élément de la matrice lorsque la chaîne transformée sera écrit
Original: pointer to the first element of the array where the transformed string will be written The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| src | - | pointeur vers le premier caractère d'une chaîne d'octets terminée par NULL à transformer
Original: pointer to the first character of a null-terminated byte string to transform The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| count | - | Le nombre de caractères devant être écrites
Original: maximum number of characters to be written 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
La longueur de la chaîne transformée, non compris le caractère de fin NULL .
Original:
The length of the transformed string, not including the terminating null-character.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
[modifier] Exemple
#include <iostream> #include <iomanip> #include <cstring> int main() { std::setlocale(LC_COLLATE, "cs_CZ.iso88592"); std::string in1 = "hrnec"; std::string out1(1+std::strxfrm(nullptr, in1.c_str(), 0), ' '); std::string in2 = "chrt"; std::string out2(1+std::strxfrm(nullptr, in2.c_str(), 0), ' '); std::strxfrm(&out1[0], in1.c_str(), out1.size()); std::strxfrm(&out2[0], in2.c_str(), out2.size()); std::cout << "In the Czech locale: "; if(out1 < out2) std::cout << in1 << " before " << in2 << '\n'; else std::cout << in2 << " before " << in1 << '\n'; std::cout << "In lexicographical comparison: "; if(in1 < in2) std::cout << in1 << " before " << in2 << '\n'; else std::cout << in2 << " before " << in1 << '\n'; }
Résultat :
In the Czech locale: hrnec before chrt In lexicographical comparison: chrt before hrnec
[modifier] Voir aussi
| transformer une chaîne large, afin que wcscmp produirait le même résultat que wcscoll Original: transform a wide string so that wcscmp would produce the same result as wcscoll The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction) | |
| [ virtuel ]Original: virtual The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
transforme une chaîne de classement de sorte que peut être remplacé par des comparaisons Original: transforms a string so that collation can be replaced by comparison The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre virtuelle protégée de std::collate)
|
| compare deux chaînes en fonction de la localisation en cours Original: compares two strings in accordance to the current locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction) | |
| C documentation for strxfrm
| |
