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std::strcmp – cppreference.com

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definiert in Header `<cstring>`

`int strcmp( const char lhs, const char rhs );`

Vergleicht zwei null-terminierte Byte-Strings. Der Vergleich wird lexikographisch getan .

Original:

Compares two null-terminated byte strings. The comparison is done lexicographically.

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Beide lhs und rhs sollte gültige Zeichenfolgen verweisen .

Original:

Both lhs and rhs should point to valid strings.

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Parameter

lhs, rhs

-

Zeiger auf die null-terminierte Byte-Strings zu vergleichen

Original:

pointers to the null-terminated byte strings to compare

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Rückgabewert

Negativen Wert, wenn lhs ist weniger als rhs .

Original:

Negative value if lhs is less than rhs.

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0 wenn lhs ist gleich rhs .

Original:

0 if lhs is equal to rhs.

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Positiven Wert, wenn lhs ist größer rhs .

Original:

Positive value if lhs is greater than rhs.

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Beispiel

#include <vector>
#include <cstring>
#include <algorithm>
#include <iostream>

int main() 
{
    std::vector<const char*> cats {"Heathcliff", "Snagglepuss", "Hobbes", "Garfield"};
    std::sort(cats.begin(), cats.end(), [](const char *strA, const char *strB) {
        return std::strcmp(strA, strB) < 0;
    }); 

    for (const char *cat : cats) {
        std::cout << cat << '\n';
    }
}

Output:

Garfield
Heathcliff
Hobbes
Snagglepuss

Siehe auch


strncmp	vergleicht eine bestimmte Anzahl von Zeichen von zwei Zeichenfolgen Original: compares a certain amount of characters of two strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion) [edit]

memcmp	vergleicht zwei Puffer Original: compares two buffers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion) [edit]

strcoll	vergleicht zwei Strings in Übereinstimmung mit dem aktuellen Gebietsschema 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. (Funktion) [edit]

C documentation for strcmp