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最新评论
During the step of function overload resolution, the compiler identifies and ranks the conversion that can apply to each argument in a function call to convert to the type of the corresponding parameter in each viable function.
possible minor converion in exact match
- Lvalue-to-rvalue converion
- Array to pointer conversion
- Function to pointer conversion
- Qualification conversion
below the exact match, it is the pomotion, and actually the rand of the conversion (inlcuding the exact match is as follow):
- Exact match
- Promotion (int -> float -> double)
- Standard Conversion (double -> float -> int)
- User defined conversion
why the rank is so important, it is because during the overload function selection, there are rules for better ranked conversion.
- The conversion applied to the arguments are no worse than the conversion necessary to call any other viable function.
- The conversion on some arguments are better than the conversions necesary for the ame arguments when calling the other viable functions.
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不安装Visual Studio，只用Windows SDK搭建VC环境
2013-12-31 21:52 15345首先你需要下载的是 Microsoft Windows S ... -
rpath - runtime search path
2013-04-03 11:36 1021RPath is a very interesting to ... -
C++ - autogenerated copy constructor and assignment operator gotchas
2013-01-24 13:32 773It has been changed that the s ... -
c++ - rethrow a exception gotchas
2012-12-23 10:57 972As in my prevoius example in j ... -
c++ -typeid operator
2012-10-15 22:30 1065typeid is the one of the meager ... -
c++ - dynamic_cast revisit
2012-10-14 21:21 781There are several built-in type ... -
c++ - virtual inheritance example 1
2012-10-14 15:25 830we have discussed the virtual i ... -
c++ - virtual inheritance
2012-10-12 08:58 992As we have discussed in the pos ... -
c++ type of inheritance
2012-09-28 08:58 755There are 3 types of inheritanc ... -
c++ - vritually virtual new
2012-09-27 23:59 961Let's see what if we want to cl ... -
c++ - virtual destructor
2012-09-27 22:01 981As we all know that virtual des ... -
c++ - vritual function and default arguments
2012-09-27 08:56 1000As we all know that we virtual ... -
c++ - template specialization and partial specialization
2012-09-26 22:38 1336in this post, we are going to e ... -
c++ - member template in class template
2012-09-26 08:19 944class member template can be us ... -
c++ template class and the pattern to use its friends
2012-09-25 23:47 991template class may defined thei ... -
c++ - Friend declaration in class Template
2012-09-25 08:47 1214There are three kinds of friend ... -
c++ - class template default parameters
2012-09-25 08:18 861the template has parameter, it ... -
c++ - operator new and delete and an example of linked list stores by new/delete
2012-09-24 07:53 594The operator new and delete ope ... -
c++ - delete(void *, size_t) or delete(void *)
2012-09-24 07:18 1173In my previous dicuss, we have ... -
c++ - placement operator new() and the operator delete()
2012-09-23 15:22 877A class member operator new() c ...
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