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c++ Programming Glossary: knowWhy is processing a sorted array faster than an unsorted array? http://stackoverflow.com/questions/11227809/why-is-processing-a-sorted-array-faster-than-an-unsorted-array with a flag. But in computers the processor doesn't know which direction a branch will go until the last moment. So how..
What is the difference between a definition and a declaration? http://stackoverflow.com/questions/1410563/what-is-the-difference-between-a-definition-and-a-declaration declared and referenced somewhere then the linker doesn't know what to link references to and complains about a missing symbols... define something more than once then the linker doesn't know which of the definitions to link references to and complains..
Undefined, unspecified and implementation-defined behavior http://stackoverflow.com/questions/2397984/undefined-unspecified-and-implementation-defined-behavior example #include iostream int main char p hello n yes I know deprecated conversion p 0 'y' p 5 'w' std cout p The variable.. Basically you have to read good C books by authors who know what they're talking about. Screw internet tutorials. Screw..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom default constructor a C 11 feature then swap with other we know a default constructed instance of our class can safely be assigned.. of our class can safely be assigned and destructed so we know other will be able to do the same after swapping. Note that..
What can I use to profile C++ code in Linux? http://stackoverflow.com/questions/375913/what-can-i-use-to-profile-c-code-in-linux and thus costs that much . For simplicity suppose we don't know what f is but assume it is either 0.1 0.2 0.3 ... 0.9 1.0 and..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points long. So have patience while reading it. If you already know these things reading them again won't make you crazy. Pre requisites.. again won't make you crazy. Pre requisites An elementary knowledge of C Standard What are Sequence Points The Standard says.. and Sequence Points Before I get into that you must know the difference s between Undefined Behaviour Unspecified Behaviour..
When to use forward declaration? http://stackoverflow.com/questions/553682/when-to-use-forward-declaration position when you forward declare a type all the compiler knows is that this type exists it knows nothing about its size members.. a type all the compiler knows is that this type exists it knows nothing about its size members or methods. This is why it's.. a member or a base class since the compiler would need to know the layout of the type. Assuming the following forward declaration...
What are the differences between pointer variable and reference variable in C++? http://stackoverflow.com/questions/57483/what-are-the-differences-between-pointer-variable-and-reference-variable-in-c between pointer variable and reference variable in C I know references are syntactic sugar so easier code to read and write.. whereas reference cannot. If you try hard enough and you know how you can make the address of a reference NULL. Likewise if..
Where and why do I have to put the “template” and “typename” keywords? http://stackoverflow.com/questions/610245/where-and-why-do-i-have-to-put-the-template-and-typename-keywords name and VC is quite right in choking on it. I also know that I should be able to add template somewhere to tell the.. FAQ entry. In order to parse a C program you need to know for certain names whether they name types or non types. The.. Usually for simple languages for parsing you don't need to know the meaning of a name but can just grammatically analyze the..
Can a local variable's memory be accessed outside its scope? http://stackoverflow.com/questions/6441218/can-a-local-variables-memory-be-accessed-outside-its-scope in an explosion while you are sneaking around. You don't know what is going to happen when you checked out of the hotel and.. The compiler generates calls into a heap manager that knows how to dynamically allocate storage when it is needed and reclaim.. where the lifetime of each byte in the storage is well known and in particular lifetimes of storages follow a nesting pattern...
http://stackoverflow.com/questions/1074474/should-i-use-double-or-float you should read What Every Computer Scientist Should Know About Floating Point Arithmetic . In short although double give..
Precise floating-point<->string conversion http://stackoverflow.com/questions/1311242/precise-floating-point-string-conversion are not precise. See What Every Computer Scientist Should Know About Floating Point Arithmetic It often puzzles people that..
Floating point comparison revisited http://stackoverflow.com/questions/13940316/floating-point-comparison-revisited Dawson's articles and What Every Computer Scientist Should Know About Floating Point Arithmetic and this nice answer . As I..
C: Good Habits re: Transitioning to C++ http://stackoverflow.com/questions/1420685/c-good-habits-re-transitioning-to-c to produce good and efficient code see the next point . Know the advantages drowbacks costs of each C construct For example.. problems are often elsewhere. Ignorance is no excuse. Know the code produced for each C construct i.e. inlining references.. function override template virtual function etc. . Know what will be optimized away and what won't. This way not only..
is it better to use shared_ptr.reset or operator =? http://stackoverflow.com/questions/14836691/is-it-better-to-use-shared-ptr-reset-or-operator space optimizations in the case of make_shared see the We Know Where You Live optimization done by MS's implementation . However..
What technologies do C++ programmers need to know? [closed] http://stackoverflow.com/questions/152387/what-technologies-do-c-programmers-need-to-know by Bjarne Stroustrup. Effective C series by Scott Meyers. Know your libraries extensively. STL is definitely a must as it has.. knowing it is very close to point 1 you have to master it. Knowing boost can be very interesting as a multi platform and generic.. very interesting as a multi platform and generic library. Know the libraries you are supposed to work with whether it is Win32..
What is “cache-friendly” code? http://stackoverflow.com/questions/16699247/what-is-cache-friendly-code in high performance computing cfr. for example ATLAS . Know and exploit the implicit structure of data Another simple example..
How to make SIMPLE C++ Makefile? http://stackoverflow.com/questions/2481269/how-to-make-simple-c-makefile makefiles that is less than optimal and how to avoid it. Know Bugs and Historical Notes The input language for make is whitespace..
http://stackoverflow.com/questions/2843277/c-winsock-p2p you can't see it either. This could as well be called Know your blocking code .. When one side sends something you don't.. errors winsock functions return alot of information. Know your WSAGetLastError function. I'll won't keep it in the examples..
http://stackoverflow.com/questions/3074872/typedef-and-incomplete-type doesn't have nested pointer type for tr1 array . Know mostly what can not be done and interested to know what can..
Determining the alignment of C/C++ structures in relation to its members http://stackoverflow.com/questions/364483/determining-the-alignment-of-c-c-structures-in-relation-to-its-members alignment of the structure in What Every Programmer Should Know About Memory but I couldn't find anything remotely similar in..
What is COM (Component Object Model) in a nutshell? [closed] http://stackoverflow.com/questions/455687/what-is-com-component-object-model-in-a-nutshell COM also allows components to exist on remote computers. Know the GUID of the given component. With this GUID the client can..
How to write fast (low level) code? [closed] http://stackoverflow.com/questions/6852670/how-to-write-fast-low-level-code this question Drepper's What Every Programmer Should Know About Memory pdf is a good reference to one aspect of low level..
Visual Studio 2010 hangs when I debug method AttachThreadInput() http://stackoverflow.com/questions/8075568/visual-studio-2010-hangs-when-i-debug-method-attachthreadinput is one of the Five Things Every Win32 Programmer Should Know I discussed back in 2005. AttachThreadInput means Please take..
http://stackoverflow.com/questions/850796/the-point-of-pointers point of pointers I Know am very wrong about this but i would like some help. What is..
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