c++ Programming Glossary: thathttp://stackoverflow.com/questions/4172722/what-is-the-rule-of-three of user defined types with value semantics . This means that objects are implicitly copied in various contexts and we should.. because the target object is already in some valid state that needs to be dealt with. Since we declared neither the copy constructor.. look like this 1. copy constructor person const person that name that.name age that.age 2. copy assignment operator person..
http://stackoverflow.com/questions/1008019/c-singleton-design-pattern deduce that the instance field is initiated on the heap. That means there is a memory allocation. What is completely unclear..
what is the difference between const int*, const int * const, int const * http://stackoverflow.com/questions/1143262/what-is-the-difference-between-const-int-const-int-const-int-const it later foo is a variable pointer to a constant int. That is you change what you point to but not the value that you point..
Most effective way for float and double comparison http://stackoverflow.com/questions/17333/most-effective-way-for-float-and-double-comparison measured in inches and lines measured in mils .001 inch . That is a b but 1000a 1000b . This is why AlmostEqual2sComplement..
http://stackoverflow.com/questions/3106110/what-is-move-semantics swaps the contents with a freshly created deep copy. That is the very definition of the copy and swap idiom make a copy..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom non trivial try catch clauses this is a non issue. That's because a class should manage one resource only A successful.. unfortunate but luckily trivial task. Why does that work That is the only change we need to make to our class so why does..
http://stackoverflow.com/questions/356950/c-functors-and-their-uses is pretty much just a class which defines the operator . That lets you create objects which look like a function this is a.. std transform should call. It should call add_x operator . That means it can inline that function call. And that makes it just..
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 is a problem and your first reaction is disbelief. That is natural but you can be sure if it finds a problem it is real..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three an object of the class is responsible for that resource. That usually means the resource is acquired in the constructor or..
http://stackoverflow.com/questions/4421706/operator-overloading of the work in overloading operators is boiler plate code. That is little wonder since operators are merely syntactic sugar.. you cannot change the standard library 䏭 stream types. That 䏭 why you need to implement these operators for your own types.. can be used as a base for their non compound counterparts. That is operator is implemented in terms of is implemented in terms..
How do you set, clear and toggle a single bit in C/C++? http://stackoverflow.com/questions/47981/how-do-you-set-clear-and-toggle-a-single-bit-in-c-c a bit Use the bitwise OR operator to set a bit. number 1 x That will set bit x . Clearing a bit Use the bitwise AND operator.. Use the bitwise AND operator to clear a bit. number ~ 1 x That will clear bit x . You must invert the bit string with the bitwise.. XOR operator ^ can be used to toggle a bit. number ^ 1 x That will toggle bit x . Checking a bit You didn't ask for this but..
http://stackoverflow.com/questions/4810664/how-do-i-use-arrays-in-c conversion is a pointer to the first element of the array. That is anywhere a T is required you can provide a T n and the compiler.. that you could simply provide x as the first argument. That is a little too terse for my taste and it also makes template..
Pretty-print C++ STL containers http://stackoverflow.com/questions/4850473/pretty-print-c-stl-containers compile time constants rather than object constants. That means that you cannot supply delimiters dynamically at runtime..
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 but every C compiler implements references as pointers. That is a declaration such as int ri i allocates the same amount..
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 particular lifetimes of storages follow a nesting pattern. That is the allocation of the longest lived of the short lived variables..
Should custom containers have free begin/end functions? http://stackoverflow.com/questions/17562943/should-custom-containers-have-free-begin-end-functions class T class Container public YES DOCUMENT REALLY WELL THAT THE EXISTING CODE IS BEING MODIFIED auto begin decltype legacy_begin..
Function Pointers in Objective C http://stackoverflow.com/questions/1777486/function-pointers-in-objective-c so that C method would need to be part of the class SO THAT IT CAN ACCESS THE INSTANCE FIELDS . I don't know how to make..
A better way to split a string into an array of strings in C/C++ using whitespace as a delimiter http://stackoverflow.com/questions/3162108/a-better-way-to-split-a-string-into-an-array-of-strings-in-c-c-using-whitespac because of the else clause all the way at the end. LINE THAT FAILS _tcsncpy_s s.GetBuffer int nIndex nLast nIndex nLast psz..
Undefined reference to template members http://stackoverflow.com/questions/4100893/undefined-reference-to-template-members ... Maze.cpp #include Maze.h ... ... Maze Maze IT SHOWS THAT THE FOLLOWING LINE HAS AN ERROR stack new Stack Coordinate ..
Qt, MSVC, and /Zc:wchar_t- == I want to blow up the world http://stackoverflow.com/questions/4521252/qt-msvc-and-zcwchar-t-i-want-to-blow-up-the-world incantation to get boost to build with Zc wchar_t and will THAT cause permanent mental damage Can I get away with just using..
Boost Static Assertion for Type Comparision http://stackoverflow.com/questions/6642050/boost-static-assertion-for-type-comparision my type comparision to work under NVCC Any ideas IT SEEMS THAT MSVC which is routed to by NVCC has its problems as well with..
Move semantics & returning const values http://stackoverflow.com/questions/7138780/move-semantics-returning-const-values const v char const sep THE FOLLOWING WORKS BUT I THINK THAT IS ACCIDENTAL IT CALLS c_str std string const BUT I THINK THE..
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