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Differences between C++ string == and compare()?
...tring::operator==()
if (str1 == str2)
008533F0 cmp dword ptr [ebp-14h],10h
008533F4 lea eax,[str2]
008533F7 push dword ptr [ebp-18h]
008533FA cmovae eax,dword ptr [str2]
008533FE push eax
008533FF push dword ptr [ebp-30h]
00853402 ...
How to “return an object” in C++?
...to use smart pointers (if Thing is really big and heavy object), like auto_ptr:
std::auto_ptr<Thing> calculateThing()
{
std::auto_ptr<Thing> thing(new Thing);
// .. some calculations
return thing;
}
// ...
{
std::auto_ptr<Thing> thing = calculateThing();
// working wi...
What is meant by Resource Acquisition is Initialization (RAII)?
... obj. The easiest way out would be to simply disallow copying. std::unique_ptr<>, a smart pointer to be part of the standard library as featured by the next C++ standard, does this.
Another such smart pointer, std::shared_ptr features "shared ownership" of the resource (a dynamically allocated...
When should the volatile keyword be used in C#?
...good article on Double Checked Locking, and briefly touches on this topic:
http://en.wikipedia.org/wiki/Double-checked_locking
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Difference between socket and websocket?
... from browsers connecting to Application Server over a protocol similar to HTTP that runs over TCP/IP. So they are primarily for Web Applications that require a permanent connection to its server. On the other hand, plain sockets are more powerful and generic. They run over TCP/IP but they are not r...
WCF timeout exception detailed investigation
...tool can be quite helpful at this point. I'm assuming this is running over HTTP on standard port 80.
Run Wireshark on the client. In the Options when you start the capture, set the capture filter to tcp http and host service.example.com - this will reduce the amount of irrelevant traffic.
If yo...
Why am I getting “Cannot Connect to Server - A network-related or instance-specific error”?
...L to ascertain if your server is included in your network list.
Enable TCP/IP in SQL Server Configuration
When two or more SQL Servers are connected across network they do all communication using TCP/IP. The default port of SQL Server installation is 1433. This port can be changed through S...
C# Float expression: strange behavior when casting the result float to int
... in that case there is no truncate operation but only approximation.
See http://msdn.microsoft.com/en-us/library/system.single.aspx
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Function passed as template argument
... way to tell that this code doesn't quite do what we want is:
int (* func_ptr)(int, int) = add;
int c = do_op(4,5,func_ptr);
is still legal, and clearly this is not getting inlined. To get full inlining, we need to template by value, so the function is fully available in the template.
typedef i...
Can I list-initialize a vector of move-only type?
...tream>
#include <vector>
#include <make_unique.h> /// @see http://stackoverflow.com/questions/7038357/make-unique-and-perfect-forwarding
template <typename T, typename... Items>
inline std::vector<std::unique_ptr<T>> make_vector_of_unique(Items&&... items) ...