H*M
发帖数: 1268 | 1 std::string s1;
/*...*/
if("string literal" == s1)
std::cout<<"equal"<
问这个==,compiler是怎么interpret的?global的operator,还是string class的member
function啊?
谢谢. | X****r
发帖数: 3557 | 2 bool operator== ( const char* lhs, const string& rhs ); | H*M
发帖数: 1268 | 3 thanks.
how if it is:
if(s1 == "string literal")
it will be a member function of string class? which goes first?
【在 X****r 的大作中提到】
: bool operator== ( const char* lhs, const string& rhs );
| X****r
发帖数: 3557 | 4 In the particular of of std::string, it is
bool operator== ( const string& lhs, const char* rhs );
More precisely, the standard prototype is
template
bool operator==(const basic_string& lhs,
const charT* rhs);
Generally, the member function of the class is used first as an
overloaded operator, then non-member function.
【在 H*M 的大作中提到】
: thanks.
: how if it is:
: if(s1 == "string literal")
: it will be a member function of string class? which goes first?
| m********0
发帖数: 2717 | 5 Right.
http://www.mitbbs.com/article0/Quant/31216111_0.html
【在 X****r 的大作中提到】
: In the particular of of std::string, it is
: bool operator== ( const string& lhs, const char* rhs );
: More precisely, the standard prototype is
: template
: bool operator==(const basic_string& lhs,
: const charT* rhs);
: Generally, the member function of the class is used first as an
: overloaded operator, then non-member function.
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