Monthly Archives: October 2008

In Windows, you can catch an asynchronous exception (such as an access violation exception) with catch(…) clause. struct Foo {  ~Foo(){    // destructor  }}; try{   Foo foo;   *reinterpret_cast<char*>(0) = 0;}catch(…){    // handle access violation.} However, the behavior differs depends on … Continue reading →

After Visual C++ 6.0, Microsoft has changed the implementation of std::string to non-reference counted object due to threading issues. http://support.microsoft.com/kb/813810 If your in-loop functions take/return std::string object by value, it could be a cause of performance bottle neck. Here is … Continue reading →

When an object with a vtable is instantiated, the vtable is constructed in the allocated buffer. So, what happens if the buffer allocation fails? In the case buffer allocation is done by default allocator, std::bad_alloc() is raised before vtable construction … Continue reading →

So, I wrote this and read D&E but still could not understand why. (Tell me where in D&E I can find the discussion.) Some google search, however,  unveiled the issue recently. http://groups.google.com/group/comp.std.c++/msg/0cbde331c9b8c28c?hl=en&amp; The cause seems to be a fact that … Continue reading →

So, I said in-class static initializer is compile time constant. Except that it must be integral type. What surprised me recently is this is not valid C++. class Foo {  // ERROR: double is not an integral type  static const … Continue reading →