checked_delete问题

[linzhongzi@…]

环境： Visual studio 2017 boost库编译选项： msvc141,multi,win64,debug,shared demo工程设置: debug, win32

问题源: 《Beyond the C++ STL: an introduction to boost》书上Part I, Library 3， checked_delete章节 如果把 deleter.h, deleter.cpp, to_be_deleted.h三个文件内容整合到一个文件里， 编译后会提示 " warning C4150: 删除指向不完整“to_be_deleted”类型的指针；没有调用析构函数" 运行后调用 deleter::do_it 时会间接调用到 ~to_be_deleted()。 调用 deleter::delete_it 时则不会间接调用到 ~to_be_deleted()。 最后调用完 ~to_be_deleted()程序结束时才报一个异常错误。 很奇怪的地方啊！看来是编译器工作方式的不同导致的吧。。。

code like this:

deleter.h class to_be_deleted; class deleter { public:

void delete_it(to_be_deleted* p); void do_it(to_be_deleted* p);

}; deleter.cpp #include "deleter.h" #include "boost/checked_delete.hpp" void deleter::delete_it(to_be_deleted* p) {

delete p;

} void deleter::do_it(to_be_deleted* p) {

boost::checked_delete(p); typedef char type_must_be_complete[sizeof(T)]; 所有代码放入一个文件，这句居然能编译通过??

} to_be_deleted.h #include <iostream> class to_be_deleted { public:

~to_be_deleted() {

std::cout <<

"I'd like to say important things here, please.";

}

}; Test application #include "deleter.h" #include "to_be_deleted.h" int main() {

to_be_deleted* p = new to_be_deleted; deleter d; d.delete_it(p); d.do_it(p);

}