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strcmp

Syntax:

    #include <cstring>
    int strcmp( const char *str1, const char *str2 );

The function strcmp() compares str1 and str2, then returns:

Return value Explanation
less than 0 str1 is less than str2
equal to 0 str1 is equal to str2
greater than 0 str1 is greater than str2

For example:

     printf( "Enter your name: " );
     scanf( "%s", name );
     if( strcmp( name, "Mary" ) == 0 ) {
       printf( "Hello, Dr. Mary!\n" );
     }

Note that if str1 or str2 are missing a null-termination character, then strcmp () may not produce valid results. For a similar (and safer) function that includes explicit bounds checking, see strncmp().

Related Topics: memcmp, strcat, strchr, strcoll, strcpy, strlen, strncmp, strxfrm

 
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