请问关于overloading << (转载) - 未名空间MITBBS历史存档

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请问关于overloading << (转载)

请问关于overloading << (转载)# JobHunting - 待字闺中

x*a2013-02-27 08:02

1 楼

【以下文字转载自 Programming 讨论区】
发信人: xiaojiya (xiaojiya), 信区: Programming
标题: 请问关于overloading <<
发信站: BBS 未名空间站 (Wed Feb 27 11:59:50 2013, 美东)
I am working on the example in accelerated C++.
I have overloaded operator+= , operator+ , and operator<<.>the following code does not work.
I got "invalid operands to binary expression('ostream'(aka 'basic_ostream<
char>') and 'myString') when compiling the code.
myString s1="hello";
myString s2="world";
std::cout<< s1+s2 <it worked in the following way.
myString s1="hello";
myString s2="world";
myString s=s1+s2;
std::cout<< s <what should I do to make the first one work?
Thanks a lot!

P*b2013-02-27 08:02

2 楼

加个括号应该就可以了

【在 x******a 的大作中提到】

: 【以下文字转载自 Programming 讨论区】
: 发信人: xiaojiya (xiaojiya), 信区: Programming
: 标题: 请问关于overloading <<
: 发信站: BBS 未名空间站 (Wed Feb 27 11:59:50 2013, 美东)
: I am working on the example in accelerated C++.
: I have overloaded operator+= , operator+ , and operator<<.>: the following code does not work.
: I got "invalid operands to binary expression('ostream'(aka 'basic_ostream<
: char>') and 'myString') when compiling the code.
: myString s1="hello";

x*a2013-02-27 08:02

3 楼

thanks, got the answer.

【在 P*******b 的大作中提到】

: 加个括号应该就可以了