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c++ Programming Glossary: caseWhat is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom An in depth explanation The goal Let's consider a concrete case. We want to manage in an otherwise useless class a dynamic array... with regards to exceptions must be given in a more general case however std copy other.mArray other.mArray mSize mArray destructor.. the array only to try and copy it . But in all other cases it merely serves to slow the program down and act as noise..
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
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three Memberwise copying is exactly what we want in this case name and age are copied so we get a self contained independent.. destructor is always empty. This is also fine in this case since we did not acquire any resources in the constructor. The.. int age public the constructor acquires a resource in this case dynamic memory obtained via new person const char the_name int..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points the arguments a and a . The behaviour is undefined in that case if a is considered to be a primitive type at a function call..
http://stackoverflow.com/questions/4421706/operator-overloading it is very unlikely that you would find a reasonable use case for these 2 . 1 As with all rules of thumb sometimes there might.. is usually more efficient than returning a copy but in the case of operator there is no way around the copying. When you write.. and for output and input there are very few reasonable use cases for overloading these. 3 Again the lesson to be taken from..
http://stackoverflow.com/questions/4810664/how-do-i-use-arrays-in-c element is when the operator is applied to it. In that case the operator yields a pointer to the entire array not just a.. not just a pointer to its first element. Although in that case the values the addresses are the same a pointer to the first.. 8 ^ ^ ^ x x 3 x 7 int Note that in the depicted case x is a pointer variable discernible by the small box next to..
Why can templates only be implemented in the header file? http://stackoverflow.com/questions/495021/why-can-templates-only-be-implemented-in-the-header-file to instantiate them with the template argument in this case int . If these implementations were not in the header they wouldn't..
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 template specialization inUnion T and forwards the generic case inUnion U . If in the last node no specialization of inUnion.. problem how can we parse t x f The answer is In this case we decide how the compiler should parse this. If t x is a dependent.. function template Additional notes and examples In enough cases we need both of typename and template . Your code should look..
Why Switch/Case and not If/Else If? http://stackoverflow.com/questions/1028437/why-switch-case-and-not-if-else-if Switch Case and not If Else If This question in mainly pointed at C C but..
C and C++ : Partial initialization of automatic structure http://stackoverflow.com/questions/10828294/c-and-c-partial-initialization-of-automatic-structure elements being initialized. Example int array 10 1 2 Case 1 Partial Initialization What is Complete Initialization or.. code statement. Example int array 10 0 1 2 3 4 5 6 7 8 9 Case 2 Complete Initialization int array 10 Case 3 No Initialization.. 3 4 5 6 7 8 9 Case 2 Complete Initialization int array 10 Case 3 No Initialization The quoted paragraph describes the behavior..
Case insensitive string comparison in C++ http://stackoverflow.com/questions/11635/case-insensitive-string-comparison-in-c insensitive string comparison in C What is the best way of..
Understanding the difference between f() and f(void) in C and C++ once and for all [duplicate] http://stackoverflow.com/questions/13319492/understanding-the-difference-between-f-and-fvoid-in-c-and-c-once-and-for-a use va_list . Now here is where things get interesting. Case 1 Declaration void f Definition void f int a int b float c ..... void f Definition void f int a int b float c ... Case 2 Declaration void f Definition void f ... Question What happens..
C++ typedef interpretation of const pointers http://stackoverflow.com/questions/2253738/c-typedef-interpretation-of-const-pointers interpretation of const pointers Firstly sample codes Case 1 typedef char CHARS typedef CHARS const CPTR constant pointer.. typedef char const CPTR still a constant pointer to chars Case 2 typedef char CHARS typedef const CHARS CPTR constant pointer..
http://stackoverflow.com/questions/379053/diamond-inheritance-c cases or is there another design that could be better. Case 1 I want to create classes that represent different kinds of.. from Action class will implement the same method. Case 2 I implement the composite design pattern for a Command in..
constructor invocation mechanism http://stackoverflow.com/questions/4283576/constructor-invocation-mechanism most vexing parse share improve this question Case 1 m is interpreted as a function return my and taking no arguments... arguments. To see the expected output remove i.e use my m Case 2 This is something better known as the Most vexing parse ...
http://stackoverflow.com/questions/6320789/c-aliasing-rules case 4 could only apply if one of the types was a char . Case 3 though isn't all that different from case 1 as references..
Why switch statement cannot be applied on strings? [closed] http://stackoverflow.com/questions/650162/why-switch-statement-cannot-be-applied-on-strings But how should the compiler compare 2 string values Case sensitive insensitive culture aware etc ... Without a full awareness..
Convert a String In C++ To Upper Case http://stackoverflow.com/questions/735204/convert-a-string-in-c-to-upper-case a String In C To Upper Case How could one convert a string to upper case. The examples..
Why can't variables be declared in a switch statement? http://stackoverflow.com/questions/92396/why-cant-variables-be-declared-in-a-switch-statement c c switch statement share improve this question Case statements are only 'labels'. This means the compiler will interpret..
Is it a good practice to use unions in C++? http://stackoverflow.com/questions/943267/is-it-a-good-practice-to-use-unions-in-c value that could hold an int or a float for example . Case 1 Is fine because you're not changing the meaning of the type.. of accessing the same data in slightly different forms. Case 2 can be useful but is extremely dangerous because you need..
Linking C++ code with 'gcc' (without g++) http://stackoverflow.com/questions/1001535/linking-c-code-with-gcc-without-g obj io.o obj stopwatch.o o bin process # DEFAULT TEST CASE run exe . bin process i data nasa_small.log a data nasa_small.access..
Why is my char* writable and sometimes read only in C++ http://stackoverflow.com/questions/2241834/why-is-my-char-writable-and-sometimes-read-only-in-c me the right path to understand so I am seeking your help. CASE 1 First case where I got access violation when trying to swap.. when trying to swap letters around char bob hello CASE 2 Then I tried this to get it work char bob new char 5 bob 0.. char 5 bob 0 'h' bob 1 'e' bob 2 'l' bob 3 'l' bob 4 'o' CASE 3 But then when I did a cout I got some random crap at the end..
http://stackoverflow.com/questions/2615162/return-value-not-a-reference-from-the-function-bound-to-a-const-reference-in would be extended to the scope of the calling function. So CASE A const BoundingBox Player GetBoundingBox void return BoundingBox.. II . Also for comparison I made the following changes. CASE B BoundingBox Player GetBoundingBox void return BoundingBox..
http://stackoverflow.com/questions/3777016/code-refactoring and Ada 95 code into OOA D notation faster than any other CASE tool. CodeDrawer for C The CodeDrawer converts source code to..
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