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c++ Programming Glossary: alsoWhat are the rules about using an underscore in a C++ identifier? http://stackoverflow.com/questions/228783/what-are-the-rules-about-using-an-underscore-in-a-c-identifier from an MFC background you'll probably use m_foo . I've also seen myFoo occasionally. C# or possibly just .NET seems to recommend.. as a name in the global namespace. 165 165 Such names are also reserved in namespace std 17.4.3.1 . Because C is based on the.. 2 C 03 and C99 is a normative reference 1.2 1 C 03 these also apply from the 1999 C Standard 7.1.3 Reserved identifiers Each..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom Three and A Half any time your class manages a resource it also makes sense to provide a swap function. We need to add swap..
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 summaries in the presence of recursion. They will also say it only works on toy programs when actually it works on.. they tend to have more problems to find. P.S. This can also be done on multi thread programs if there is a way to collect..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three The implicitly defined destructor is always empty. This is also fine in this case since we did not acquire any resources in.. delete name name local_name age that.age return this This also takes care of self assignment without an explicit check. An..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points has some side effect s . For example int x y where y is also an int In addition to the initialization operation the value.. imposes no requirements 3 . Undefined behaviour may also be expected when this International Standard omits the description.. Behaviour and Implementation Defined Behaviour . You must also know that the order of evaluation of operands of individual..
http://stackoverflow.com/questions/4421706/operator-overloading The function call operator used to create function objects also known as functors must be defined as a member function so it.. the third fundamental rule of operator overloading and also define all the other boolean comparison operators. The canonical.. the third basic rule operator overloading If you provide also provide if you provide do not omit etc. Andrew Koenig is said..
http://stackoverflow.com/questions/4810664/how-do-i-use-arrays-in-c argument. That is a little too terse for my taste and it also makes template argument deduction a bit harder for the compiler..
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 a dependent name and VC is quite right in choking on it. I also know that I should be able to add template somewhere to tell.. names and by conventional use in the Standard a name can also include qualifiers that say what namespace or class a name should.. template Template names can not only occur after a but also after a or . in a class member access. You need to insert 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 the C# memory manager works. Many of these articles are also germane to C programmers http blogs.msdn.com b ericlippert archive..
Is there a difference in C++ between copy initialization and direct initialization? http://stackoverflow.com/questions/1051379/is-there-a-difference-in-c-between-copy-initialization-and-direct-initializati seen people say both things. Please cite text as proof. Also add other cases please. c initalization share improve this..
What is a smart pointer and when should I use one? http://stackoverflow.com/questions/106508/what-is-a-smart-pointer-and-when-should-i-use-one to define a weak uncounted reference to a shared_ptr . Also note that the existing standard C library does define a special..
What is external linkage and internal linkage in C++ http://stackoverflow.com/questions/1358400/what-is-external-linkage-and-internal-linkage-in-c linkage and internal linkage and their difference. Also I want to know any const. variable in internally link by default..
Most effective way for float and double comparison http://stackoverflow.com/questions/17333/most-effective-way-for-float-and-double-comparison function but only if the expected values are less than 1. Also if you basically have int arithmetic in doubles here we use..
How do you reverse a string in place in C or C++? http://stackoverflow.com/questions/198199/how-do-you-reverse-a-string-in-place-in-c-or-c in the UNICODE http www.macchiato.com unicode chart Also UTF 8 over 0x10000 is untested as I don't seem to have any font..
What should main() return in C and C++? http://stackoverflow.com/questions/204476/what-should-main-return-in-c-and-c is no standard for how non zero codes are interpreted. Also as noted by others void main is explicitly prohibited by the.. range of valid C program main signatures is much greater. Also efficiency is not an issue with the main function. It can only..
What are the rules about using an underscore in a C++ identifier? http://stackoverflow.com/questions/228783/what-are-the-rules-about-using-an-underscore-in-a-c-identifier global namespaces identifiers beginning with an underscore Also everything in the std namespace is reserved. You are allowed..
http://stackoverflow.com/questions/236129/how-to-split-a-string-in-c functions or that kind of character manipulation access. Also please give precedence to elegance over efficiency in your answer...
Read whole ASCII file into C++ std::string http://stackoverflow.com/questions/2602013/read-whole-ascii-file-into-c-stdstring It looks like you've confused it with C's fopen . Edit Also note the extra parentheses around the first argument to the..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three state before assigning to name to prevent memory leaks. Also we have to protect against self assignment of the form x x ...
What are Aggregates and PODs and how/why are they special? http://stackoverflow.com/questions/4178175/what-are-aggregates-and-pods-and-how-why-are-they-special there is no such guarantee for objects of non POD types. Also you can safely copy POD objects with memcpy . The following..
http://stackoverflow.com/questions/4421706/operator-overloading the postfix variant is implemented in terms of prefix. Also note that postfix does an extra copy. 2 2 Also note that the.. of prefix. Also note that postfix does an extra copy. 2 2 Also note that the postfix variant does more work and is therefore.. value which is why operator has to return a new value. 3 Also note that operator takes its left operand by copy rather than..
http://stackoverflow.com/questions/4810664/how-do-i-use-arrays-in-c invokes undefined behavior in C but not in C99 . Also note that you could simply provide x as the first argument...
Pretty-print C++ STL containers http://stackoverflow.com/questions/4850473/pretty-print-c-stl-containers but aren't actually containers like std basic_string . Also like Marcelo's version it uses templates that can be specialized..
What are the barriers to understanding pointers and what can be done to overcome them? http://stackoverflow.com/questions/5727/what-are-the-barriers-to-understanding-pointers-and-what-can-be-done-to-overcome second house will have a lower address than the first one. Also they're allocated right next to each other. Thus this code var..
Singleton: How should it be used http://stackoverflow.com/questions/86582/singleton-how-should-it-be-used from the many interviews I have done most people can't . Also because everybody thinks they can implement a correct Singleton.. source of when and then how to use a Singleton correctly. Also appropriate would be a list of Anti Usages and common bad implementations..
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