operator>= (<string>)

測試，如果在運算子左方的字串物件大於或等於右邊的字串物件。

template<class CharType, class Traits, class Allocator> 
   bool operator>=( 
      const basic_string<CharType, Traits, Allocator>& _Left, 
      const basic_string<CharType, Traits, Allocator>& _Right 
   ); 
template<class CharType, class Traits, class Allocator> 
   bool operator>=( 
      const basic_string<CharType, Traits, Allocator>& _Left, 
      const CharType *_Right 
   ); 
template<class CharType, class Traits, class Allocator> 
   bool operator>=( 
      const CharType *_Left, 
      const basic_string<CharType, Traits, Allocator>& _Right 
   );

參數

• _Left
  C. 式字串或型別要比較的 basic_string 物件。

• _Right
  C. 式字串或型別要比較的 basic_string 物件。

傳回值

true ，如果在運算子左方的字串物件動詞命令一般地大於或等於右邊的字串物件;否則 false。

備註

在字串之間的比較字元所比較字元直到:

• 找到兩個對應的字元視為不相同，因此，其比較的結果會因為比較的字串。

• 它不會尋找不等比較，不過，一串比其他有多個字元，因此，較短的字串會視為小於較長的字串。

• 它不會出現在發現字串的字元數，和，因此字串相等。

範例

// string_op_ge.cpp
// compile with: /EHsc
#include <string>
#include <iostream>

int main( ) 
{
   using namespace std;

   // Declaring an objects of type basic_string<char>
   string s1 ( "strict" );
   string s2 ( "strum" );
   cout << "The basic_string s1 = " << s1 << "." << endl;
   cout << "The basic_string s2 = " << s2 << "." << endl;

   // Declaring a C-style string
   char *s3 = "stricture";
   cout << "The C-style string s3 = " << s3 << "." << endl;

   // First member function: comparison between left-side object
   // of type basic_string & right-side object of type basic_string
   if ( s1 >= s2 )
      cout << "The string s1 is greater than or equal to "
           << "the string s2." << endl;
   else
      cout << "The string s1 is less than "
           << "the string s2." << endl;

   // Second member function: comparison between left-side object
   // of type basic_string & right-side object of C-syle string type
   if ( s3 >= s1 )
      cout << "The string s3 is greater than or equal to "
           << "the string s1." << endl;
   else
      cout << "The string s3 is less than "
           << "the string s1." << endl;

   // Third member function: comparison between left-side object
   // of C-syle string type & right-side object of type basic_string
   if ( s2 >= s3 )
      cout << "The string s2 is greater than or equal to "
           << "the string s3." << endl;
   else
      cout << "The string s2 is less than "
           << "the string s3." << endl;
}

需求

標頭：<string>

命名空間: std

請參閱

參考

string::operator>=