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问几道老题

问几道老题# JobHunting - 待字闺中

h*12010-11-30 08:11

1 楼

1，几百个文件有memory leak，怎么DEBUG？
2，main() 程序中只有 try{} catch，但还是crush了。什么原因。
3， In which cases can the destructor of a class not be called？

h*12010-11-30 08:11

2 楼

In a try block, we allocate some memory ; then an exception is thrown.
How can we get the allocated memory released before we jump to catch block
to pr
ocess the exception?

l*o2010-11-30 08:11

3 楼

1. Refer to IDE tool
2. Other part of the program throw exceptions are not handled.
3. In placement new, dtor needs to explicit called or it is not called
automatically.
4. Using smart_pointer?

l*o2010-11-30 08:11

4 楼

3 If the base class's destructor is not virtual, then using a base pointer
to manipulate a derived class, the base destructor is not called. This is
another case.

h*12010-11-30 08:11

5 楼

Derived dtor is not called?

【在 l*******o 的大作中提到】

: 3 If the base class's destructor is not virtual, then using a base pointer
: to manipulate a derived class, the base destructor is not called. This is
: another case.

h*12010-11-30 08:11

6 楼

set a new handler to release allocated memory?

【在 h*****1 的大作中提到】

: In a try block, we allocate some memory ; then an exception is thrown.
: How can we get the allocated memory released before we jump to catch block
: to pr
: ocess the exception?