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c++ Programming Glossary: nullWhat 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
How to pass objects to functions in C++? http://stackoverflow.com/questions/2139224/how-to-pass-objects-to-functions-in-c in which case you pass by pointer so that users can pass NULL 0 nullptr instead apply the previous rule to determine whether..
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 and return it if possible. If it can't it will return NULL in the case of a pointer or throw std bad_cast in the case of..
Pretty-print C++ STL containers http://stackoverflow.com/questions/4850473/pretty-print-c-stl-containers stream const if delimiters_type values.prefix NULL stream delimiters_type values.prefix for typename T const_iterator.. beg it end it if it beg delimiters_type values.delimiter NULL stream delimiters_type values.delimiter stream it if delimiters_type.. stream it if delimiters_type values.postfix NULL stream delimiters_type values.postfix private const T _container..
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 be reassigned after initialization. A pointer can point to NULL while reference can never point to NULL You can't take the address.. can point to NULL while reference can never point to NULL You can't take the address of a reference like you can with.. q pp q pp 4 assert y 4 assert x 0 Pointer can be assigned NULL directly whereas reference cannot. If you try hard enough and..
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
Undefined, unspecified and implementation-defined behavior http://stackoverflow.com/questions/2397984/undefined-unspecified-and-implementation-defined-behavior accessing an array beyond its bounds dereferencing the null pointer or writing allegedly clever expressions like i i . Section.. as undefined for example the effect of dereferencing the null pointer . Note this International Standard imposes no requirements..
When does invoking a member function on a null instance result in undefined behavior? http://stackoverflow.com/questions/2474018/when-does-invoking-a-member-function-on-a-null-instance-result-in-undefined-beha does invoking a member function on a null instance result in undefined behavior Consider the following.. crash because there is no corresponding member x for the null pointer. In practice a doesn't crash because the this pointer.. b dereferences the this pointer this .x 5 and this is null the program enters undefined behavior as dereferencing null..
Regular cast vs. static_cast vs. dynamic_cast http://stackoverflow.com/questions/28002/regular-cast-vs-static-cast-vs-dynamic-cast e dynamic_cast ExprStm stm ... dynamic_cast returns a null pointer if the object referred to doesn't contain the type casted..
http://stackoverflow.com/questions/3106110/what-is-move-semantics copied the pointer and then set the original pointer to null. In effect we have stolen the data that originally belonged.. copy the pointer and then set the pointer in the source to null. It is okay to nullify the source object in this manner because.. then set the pointer in the source to null. It is okay to nullify the source object in this manner because the client has no..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom the copy and swap idiom. Footnotes Why do we set mArray to null Because if any further code in the operator throws the destructor.. might be called and if that happens without setting it to null we attempt to delete memory that's already been deleted We avoid.. that's already been deleted We avoid this by setting it to null as deleting null is a no operation. There are other claims that..
What is the difference between NULL, '\0' and 0 http://stackoverflow.com/questions/1296843/what-is-the-difference-between-null-0-and-0 systems c c pointers null share improve this question Null Pointers The integer constant literal 0 has different meanings.. as these are seen by a compiler as normal comparisons. Null Characters ' 0' is defined to be a null character that is a..
C++11 reentrant class locking strategy http://stackoverflow.com/questions/13240015/c11-reentrant-class-locking-strategy throw std runtime_error Unable to get bar buf len ' 0' Null terminate the C string cout endl foo and bar a.k.a. have different..
C++ DAL - Return Reference or Populate Passed In Reference http://stackoverflow.com/questions/1520018/c-dal-return-reference-or-populate-passed-in-reference
null objects vs. empty objects http://stackoverflow.com/questions/1628434/null-objects-vs-empty-objects to check every unknown reference against null ArgumentNullException and to quickly fix NullReferenceException s by adding.. against null ArgumentNullException and to quickly fix NullReferenceException s by adding a null check. It seems to me one.. with exceptions empty collections and so on. The Introduce Null Object pattern in Martin Fowler's Refactoring page 260 may also..
Messages formatting the wrong way round http://stackoverflow.com/questions/17663849/messages-formatting-the-wrong-way-round msg eRMI_ToClientChannel channelId msg 0 Null the message. return pH EndFunction Edit Please note that this..
How to allocate a 2D array of pointers in C++ http://stackoverflow.com/questions/1768294/how-to-allocate-a-2d-array-of-pointers-in-c new int rows for int i 0 i rows i array2d i new int cols Null out the pointers contained in the array for int i 0 i rows i..
http://stackoverflow.com/questions/2537942/nullable-values-in-c values in C I'm creating a database access layer in native.. to support NULL values. Here is what I have so far class CNullValue public static CNullValue Null static CNullValue nv return.. Here is what I have so far class CNullValue public static CNullValue Null static CNullValue nv return nv template class T class..
http://stackoverflow.com/questions/4395991/null-terminated-string Terminated string Which of the following are null terminated..
What's the rationale for null terminated strings? http://stackoverflow.com/questions/4418708/whats-the-rationale-for-null-terminated-strings is also imperfect because it requires heap allocation. Null terminated strings have to reserve a character namely null which.. of time for null terminated and length prefixed strings. Null terminated strings just stick a null where you want the new..
Is there a general consensus in the C++ community on when exceptions should be used? [closed] http://stackoverflow.com/questions/5609503/is-there-a-general-consensus-in-the-c-community-on-when-exceptions-should-be-u const template typename O O Pointer O operator const throw Null template typename O O Pointer O operator const throw Null Here.. Null template typename O O Pointer O operator const throw Null Here I find the use of exception superfluous for 2 reasons If..
http://stackoverflow.com/questions/6725809/trap-representation pointer is not a trap representation for a pointer type. Null pointers only cause undefined behavior if they are dereferenced..
http://stackoverflow.com/questions/7547147/null-pointer-in-c pointer in C When in C I declare a null pointer to be int p..
mysql cpp connector throwing UnknownException while connecting http://stackoverflow.com/questions/8066599/mysql-cpp-connector-throwing-unknownexception-while-connecting get_driver_instance if driver NULL throw SQLException Null driver instance returned. catch SQLException e cout Could not..
Difference between string.h and cstring? http://stackoverflow.com/questions/8380805/difference-between-string-h-and-cstring with the change to memchr specified in 21.7. While 21.7 Null terminated sequence utilities states The function signature..
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