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c++ Programming Glossary: usesWhat 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 happens depending on the policy the smart pointer class uses. Destruction would happen even if DoSomething raises an exception..
What is an undefined reference/unresolved external symbol error and how do I fix it? http://stackoverflow.com/questions/12573816/what-is-an-undefined-reference-unresolved-external-symbol-error-and-how-do-i-fix unresolved external symbol errors What are common causes and how to fix them Feel free to edit add your own. c linker.. it to b.cpp well actually to the object or library that uses it . If you're using MSVS you'll see that projects generate.. fatal error LNK1120 4 unresolved externals Common causes include Failure to link against appropriate libraries object..
Variable length arrays in C++? http://stackoverflow.com/questions/1887097/variable-length-arrays-in-c You can use std vector but it is not quite the same as it uses dynamic memory and making it use ones own stack allocator isn't..
Reading from text file until EOF repeats last line http://stackoverflow.com/questions/21647/reading-from-text-file-until-eof-repeats-last-line file until EOF repeats last line The following C code uses a ifstream object to read integers from a text file which has..
What uses are there for “placement new”? http://stackoverflow.com/questions/222557/what-uses-are-there-for-placement-new uses are there for &ldquo placement new&rdquo Has anyone here ever..
Is it possible to write a C++ template to check for a function's existence? http://stackoverflow.com/questions/257288/is-it-possible-to-write-a-c-template-to-check-for-a-functions-existence not defined So if class T has toString defined then it uses it otherwise it doesn't. The magical part that I don't know..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom of providing our own but this would be impossible std swap uses the copy constructor and copy assignment operator within its.. concern and indeed it requires non trivial try catch clauses this is a non issue. That's because a class should manage one..
When should static_cast, dynamic_cast and reinterpret_cast be used? http://stackoverflow.com/questions/332030/when-should-static-cast-dynamic-cast-and-reinterpret-cast-be-used use the various cast operators in C . What are the proper uses of static_cast dynamic_cast and reinterpret_cast and how does..
Why have header files and .cpp files in C++? [closed] http://stackoverflow.com/questions/333889/why-have-header-files-and-cpp-files-in-c features. This reduces dependencies so that code that uses the header doesn't necessarily need to know all the details..
http://stackoverflow.com/questions/356950/c-functors-and-their-uses Functors and their uses I keep hearing a lot about functors in C can someone give me..
RAII and smart pointers in C++ http://stackoverflow.com/questions/395123/raii-and-smart-pointers-in-c is where smart pointers come in. The following example uses shared_ptr I suggest you look at the different types of smart..
http://stackoverflow.com/questions/402283/stdwstring-vs-stdstring the same old way. For Unicode based applications Windows uses wchar_t which is 2 bytes wide and is encoded in UTF 16 which..
Pretty-print C++ STL containers http://stackoverflow.com/questions/4850473/pretty-print-c-stl-containers code below which I made the accepted answer. My own code uses container type traits which work for me but may cause unexpected.. 20 fibonacci std cout std endl Like Marcelo's version it uses an is_container type trait that must be specialized for all.. like std basic_string . Also like Marcelo's version it uses templates that can be specialized to specify the delimiters..
How to convert a number to string and vice versa in C++ http://stackoverflow.com/questions/5290089/how-to-convert-a-number-to-string-and-vice-versa-in-c is widely considered of the best C libraries. Lexical cast uses streams underneath so basically this option is the same as the..
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 can be used directly. A pointer to a class struct uses to access it's members whereas a reference uses a . . A pointer.. struct uses to access it's members whereas a reference uses a . . A pointer is a variable that holds a memory address. Regardless..
Why should `new` be used as little as possible? http://stackoverflow.com/questions/6500313/why-should-new-be-used-as-little-as-possible the original version this program will likely crash as it uses delete on the same string twice. Using the modified version..
How to generate a stacktrace when my gcc C++ app crashes http://stackoverflow.com/questions/77005/how-to-generate-a-stacktrace-when-my-gcc-c-app-crashes believe Mac OS X if you're using gcc or any compiler that uses glibc you can use the backtrace functions in execinfo.h to print.. to stderr when it segfaults. The baz function here causes the segfault that triggers the handler #include stdio.h #include.. void baz int foo int 1 make a bad pointer printf d n foo causes segfault void bar baz void foo bar int main int argc char argv..
Practical Uses for the “Curiously Recurring Template Pattern” http://stackoverflow.com/questions/149336/practical-uses-for-the-curiously-recurring-template-pattern Uses for the &ldquo Curiously Recurring Template Pattern&rdquo What..
http://stackoverflow.com/questions/1613230/uses-of-c-comma-operator of C comma operator You see it used in for loop statements..
http://stackoverflow.com/questions/17477165/creating-qt-5-1-apps-for-ios opensource release nomake examples nomake tests Run make. Uses 4 jobs in parallel for faster compilation. make j 4 cd .. Done...
http://stackoverflow.com/questions/2144698/common-uses-for-pointers Uses For Pointers I'm a programming student with two classes in..
Does the default constructor initialize built-in types http://stackoverflow.com/questions/2417065/does-the-default-constructor-initialize-built-in-types C c C Does not use default constructor for `C ` part Uses value initialization feature instead assert c.x 0 C pc new C.. C pc new C Does not use default constructor for `C ` part Uses value initialization feature instead assert pc x 0 The behavior..
Uses of a C++ Arithmetic Promotion Header http://stackoverflow.com/questions/2426330/uses-of-a-c-arithmetic-promotion-header of a C Arithmetic Promotion Header I've been playing around..
how to specify a pointer to an overloaded function? http://stackoverflow.com/questions/2942426/how-to-specify-a-pointer-to-an-overloaded-function function signature implied by the function pointer type Uses the void f char c overload std for_each s.begin s.end static_cast.. std for_each s.begin s.end static_cast void char f Uses the void f int i overload std for_each s.begin s.end static_cast.. void fpc char f std for_each s.begin s.end fpc Uses the void f char c overload void fpi int f std for_each s.begin..
Uses for anonymous namespaces in header files http://stackoverflow.com/questions/357564/uses-for-anonymous-namespaces-in-header-files for anonymous namespaces in header files Someone asserted on..
Why is std::function not equality comparable? http://stackoverflow.com/questions/3629835/why-is-stdfunction-not-equality-comparable bool return false int main S a b bool are_equal a b Uses operator bool on a and b Oh no I was under the impression that..
C++: What are scenarios where using pointers is a “Good Idea”(TM)? [duplicate] http://stackoverflow.com/questions/4029970/c-what-are-scenarios-where-using-pointers-is-a-good-ideatm Good Idea&rdquo TM duplicate Possible Duplicate Common Uses For Pointers I am still learning the basics of C but I already..
Portable and simple unicode string library for C/C++? http://stackoverflow.com/questions/433301/portable-and-simple-unicode-string-library-for-c-c 16 encoded plus I'm not sure how good this is actually. Uses cases are for example On Windows the unicode APIs expect UTF..
different types of initialization in C++ http://stackoverflow.com/questions/5845534/different-types-of-initialization-in-c if there's a matching _non explicit_ constructor . T a 1 Uses aggregate initialisation inherited from C. Not always possible..
Move semantics - what it's all about? [duplicate] http://stackoverflow.com/questions/6815685/move-semantics-what-its-all-about with move semantics. This is the crucial difference. Uses One benefit of move semantics is that it allows optimisations..
Uses for multiple levels of pointer dereferences? http://stackoverflow.com/questions/758673/uses-for-multiple-levels-of-pointer-dereferences for multiple levels of pointer dereferences When does using..
Markdown Implementations for C/C++ http://stackoverflow.com/questions/889434/markdown-implementations-for-c-c quite well. Advantages Dual licensed under GPL and MIT. Uses internally formal grammar so easy to maintain and extend. Disadvantages..
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