std::strncpy

 

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Null-terminierte Strings Original: Null-terminated strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

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Null-terminierte Byte-Strings

Funktionen Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Character Manipulation Original: Character manipulation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
isalnum isalpha islower isupper isdigit isxdigit isblank (C++11)	iscntrl isgraph isspace isprint ispunct tolower toupper
Umwandlungen in numerische Formate Original: Conversions to numeric formats The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
atof atoi atol atoll strtol strtoll	strtoul strtoull strtof strtod strtold
String-Manipulation Original: String manipulation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
strcpy
strncpy
strcat
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String Prüfung Original: String examination The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
strlen strcmp strncmp strcoll strchr strrchr	strspn strcspn strpbrk strstr strtok
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memchr
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Defined in header <cstring>
char *strncpy( char *dest, const char *src, std::size_t count );

Kopien in den meisten count Zeichen des Byte-String, auf den src (einschließlich des abschließenden Null-Zeichen), um Zeichen-Array, auf die dest .

Original:

Copies at most count characters of the byte string pointed to by src (including the terminating null character) to character array pointed to by dest.

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Wenn count erreicht wird, bevor der gesamte String src kopiert wurde, ist das resultierende Zeichen-Array nicht null-terminierte .

Original:

If count is reached before the entire string src was copied, the resulting character array is not null-terminated.

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Wenn Sie nach dem Kopieren der abschließende Nullzeichen von src, count nicht erreicht ist, werden zusätzliche null Zeichen dest geschrieben, bis die Summe der count Zeichen geschrieben wurden .

Original:

If, after copying the terminating null character from src, count is not reached, additional null characters are written to dest until the total of count characters have been written.

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Wenn die Saiten überlappen, ist das Verhalten undefiniert .

Original:

If the strings overlap, the behavior is undefined.

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Parameter

dest	-	Zeiger auf das Zeichen-Array kopiert werden soll Original: pointer to the character array to copy to The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
src	-	Zeiger auf die Byte-String aus kopieren Original: pointer to the byte string to copy from The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
count	-	maximale Anzahl der zu kopierenden Zeichen Original: maximum number of characters to copy The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Rückgabewert

dest

Beispiel

#include <iostream>
#include <cstring>
 
int main()
{
    const char* src = "hi";
    char dest[6] = {'a', 'b', 'c', 'd', 'e', 'f'};;
    std::strncpy(dest, src, 5);
 
    std::cout << "The contents of dest are: ";
    for (char c : dest) {
        if (c) {
            std::cout << c << ' ';
        } else {
            std::cout << "\\0" << ' ';
        }
    }
    std::cout << '\n';
}

Output:

The contents of dest are: h i \0 \0 \0 f

Siehe auch

strcpy	kopiert eine Zeichenkette in eine andere Original: copies one string to another The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion)
memcpy	einen Puffer kopiert zu einem anderen Original: copies one buffer to another The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion)
C documentation for strncpy