刚才看源码读到一个小技巧

starwing83

另外，有没有交换两个宏的定义的办法？

liexusong

很复杂, 请解释!

zylthinking

又学了一招， 妈的怎么总是学不完？

没本

Including Xutil.h on Fedora breaks BOOST_FOREACH  
by tron_thomas May 23, 2009; 04:02am :: Rate this Message:    - Use ratings to moderate (?)

on Fedora 10 (Intel) produces error output like:

1. 
   
2. /usr/include/boost/foreach.hpp:223: error: expected
   
3. nested-name-specifier before ‘int’
   
4. /usr/include/boost/foreach.hpp:223: error: two or more data types in
   
5. declaration of ‘parameter’
   
6. /usr/include/boost/foreach.hpp:224: error: default template arguments
   
7. may not be used in function templates
   
8. Value.cpp: In function ‘int main()’:
   
9. Value.cpp:34: error: no matching function for call to
   
10. ‘not_(boost::is_array<std::vector<boost::shared_ptr<Value>,
    
11. std::allocator<boost::shared_ptr<Value> > > >*)’
    
12. Value.cpp:34: error: no matching function for call to
    
13. ‘not_(boost::foreach::is_noncopyable<std::vector<boost::shared_ptr<Value>,
    
14. std::allocator<boost::shared_ptr<Value> > > >*)’
    
15. Value.cpp:34: error: no matching function for call to
    
16. ‘not_(boost::is_array<std::vector<boost::shared_ptr<Value>,
    
17. std::allocator<boost::shared_ptr<Value> > > >*)’
    
18. Value.cpp:34: error: no matching function for call to
    
19. ‘not_(boost::foreach::is_noncopyable<std::vector<boost::shared_ptr<Value>,
    
20. std::allocator<boost::shared_ptr<Value> > > >*)’
    
21. Value.cpp:34: error: no matching function for call to
    
22. ‘not_(boost::is_array<std::vector<boost::shared_ptr<Value>,
    
23. std::allocator<boost::shared_ptr<Value> > > >*)’
    
24. Value.cpp:34: error: no matching function for call to
    
25. ‘not_(boost::foreach::is_noncopyable<std::vector<boost::shared_ptr<Value>,
    
26. std::allocator<boost::shared_ptr<Value> > > >*)’
    

复制代码

Tron Thomas wrote:
>#include <X11/Xutil.h>

A quick search on Google Codesearch shows that Xutil.h includes Xlib.h which
has the following

"
#define Bool int
#define Status int
#define True 1
#define False 0
"

来源：http://old.nabble.com/Including- ... ACH-td23677301.html

最新boost发行版的foreach已经针对这个问题进行处理，可以直接用了。

群雄逐鹿中原

另外，有没有交换两个宏的定义的办法？
starwing83 发表于 2010-07-14 09:07

没有