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c++ Programming Glossary: formWhat 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 character is deleted splicing physical source lines to form logical source lines. SNIP The source file is decomposed into.. output is collected into a program image which contains information needed for execution in its execution environment. emphasis.. if any . Similar mechanism exist for other compilers platforms. Common error messages are error LNK2001 error LNK1120 for..
What are copy elision and return value optimization? http://stackoverflow.com/questions/12953127/what-are-copy-elision-and-return-value-optimization feasible in practice restrictions apply . It's the only form of optimization that elides ha the as if rule copy elision can..
http://stackoverflow.com/questions/1647631/c-state-machine-design for the state machine. Because they all follow the same form and take no parameters there's use made of global variables.. no parameters there's use made of global variables for information passing where necessary. This isn't as bad as it sounds..
What is the difference between #include <filename> and #include “filename”? http://stackoverflow.com/questions/21593/what-is-the-difference-between-include-filename-and-include-filename paragraphs 2 to 4 state A preprocessing directive of the form #include h char sequence new line searches a sequence of implementation.. implementation defined. A preprocessing directive of the form #include q char sequence new line causes the replacement of.. the original directive. A preprocessing directive of the form #include pp tokens new line that does not match one of the two..
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 Just even generate it at all or to use it in the more formal sense of perform lvalue to rvalue conversion Regardless it.. it at all or to use it in the more formal sense of perform lvalue to rvalue conversion Regardless it definitely cannot.. X then the expression E1 E2 is converted to the equivalent form E1 .E2 E1 will result in undefined behavior with a strict interpretation..
http://stackoverflow.com/questions/3582001/advantages-of-using-forward reference to cv TR creates the type TR. Or in tabular form TR R T T lvalue reference to cv TR lvalue reference to T T T..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three copying scenarios. The initialization person b a is performed by the copy constructor . Its job is to construct a fresh.. the state of an existing object. The assignment b a is performed by the copy assignment operator . Its job is generally a little.. defined copy constructor for a non union class X performs a memberwise copy of its subobjects. n3126.pdf section 12.8..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points you want to critique the idea of providing an FAQ in this form then the posting on meta that started all this would be the.. designates a function invocation and the operands form an argument list without an implied sequence point between them... by the evaluation of an expression. What does it mean Informally it means that between two sequence points a variable must..
http://stackoverflow.com/questions/4421706/operator-overloading you want to critique the idea of providing an FAQ in this form then the posting on meta that started all this would be the.. for your own types as non member functions. The canonical forms of the two are these std ostream operator std ostream os const.. access to their data elements by a key. The canonical form of providing these is this class X value_type operator index_type..
http://stackoverflow.com/questions/4810664/how-do-i-use-arrays-in-c you want to critique the idea of providing an FAQ in this form then the posting on meta that started all this would be the.. x i x i However x 0 is generally not equivalent to x . The former is a pointer the latter an array. Only when the context triggers..
What does T&& (double ampersand) mean in C++11? http://stackoverflow.com/questions/5481539/what-does-t-double-ampersand-mean-in-c11 rvalue references using the std move function it just performs the conversion . The following code both invoke the move constructor.. special rule When the function parameter type is of the form T where T is a template parameter and the function argument.. an implicit conversion . i.e. float f 0f int i f is well formed because float is implicitly convertible to int the reference..
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 subset of them represent names. A name can take different forms the draft Standard says A name is a use of an identifier 2.11.. while the next two are the operator and operator type form. The last form is template name argument list . All these are.. next two are the operator and operator type form. The last form is template name argument list . All these are names and by..
Is short-circuiting boolean operators mandated in C/C++? And evaluation order? http://stackoverflow.com/questions/628526/is-short-circuiting-boolean-operators-mandated-in-c-c-and-evaluation-order designates a function invocation and the operands form an argument list without an implied sequence point between them...
http://stackoverflow.com/questions/6438086/iterator-invalidation-rules rules for C containers Preferably in a summary list format. Note This is meant to be an entry to Stack Overflow's C FAQ.. you want to critique the idea of providing an FAQ in this form then the posting on meta that started all this would be the..
What is a lambda expression in C++11? http://stackoverflow.com/questions/7627098/what-is-a-lambda-expression-in-c11 useful generic functions like std for_each and std transform which can be very handy. Unfortunately they can also be quite.. simpler to maintain for example in the simplest form void func3 std vector int v std for_each v.begin v.end int do.. for you e.g. void func4 std vector double v std transform v.begin v.end v.begin double d return d 0.00001 0 d however..
Displaying webcam feed in cv::Mat format in a picturebox http://stackoverflow.com/questions/12616529/displaying-webcam-feed-in-cvmat-format-in-a-picturebox But the problem is that i am doing all this in C Windows Forms and i want that instead of getting the display in open CV window.. Here is a C CLR function to draw OpenCV mat on any Windows Form Control void DrawCVImage System Windows Forms Control^ control.. any Windows Form Control void DrawCVImage System Windows Forms Control^ control cv Mat colorImage System Drawing Graphics^..
Training custom SVM to use with HOGDescriptor in OpenCV http://stackoverflow.com/questions/15339657/training-custom-svm-to-use-with-hogdescriptor-in-opencv LINEAR params.C 0.01 params.p 0.5 Then I calculate Primal Form of the support vectors so that I only get one vector instead.. using HOGDescriptor.setSVMDetector vector This is Primal Form When I use CvSVM.predict I am able to correctly classify objects..
Is it possible to see definition of Q_SIGNALS, Q_SLOT, SLOT(), SIGNAL() macros? (Qt) http://stackoverflow.com/questions/1815172/is-it-possible-to-see-definition-of-q-signals-q-slot-slot-signal-macros c qt signals slots share improve this question Form qobjectdefs.h for a non debug compilation #define Q_SLOTS #define..
Passing data between C++ (MFC) app and C# http://stackoverflow.com/questions/184777/passing-data-between-c-mfc-app-and-c-sharp and a message to open that customer in the Customer Form of the MFC app. I have done a little bit of research the options..
the specified module could not be found 0x8007007E http://stackoverflow.com/questions/2066180/the-specified-module-could-not-be-found-0x8007007e could not be found 0x8007007E Inside the constructor of a Form when I am stepping through my code a method declared in the..
Checklist for writing copy constructor and assignment operator in C++ http://stackoverflow.com/questions/214891/checklist-for-writing-copy-constructor-and-assignment-operator-in-c you're back into the land of the Orthogonal Canonical Form of Coplien. If you have a member that can't be trivially copied..
http://stackoverflow.com/questions/2995513/using-c-dll-in-c-sharp-project it but calling the dll gives me this error System.BadImageFormatException An attempt was made to load a program with an incorrect.. code I'm using in C# namespace Test public partial class Form1 Form DllImport convert.dll SetLastError true static extern.. I'm using in C# namespace Test public partial class Form1 Form DllImport convert.dll SetLastError true static extern Int32..
What is the best library to use when writing GUI applications in C++? [duplicate] http://stackoverflow.com/questions/5061877/what-is-the-best-library-to-use-when-writing-gui-applications-in-c also a fair bit of C# experience generally for writing WinForms applications etc. I'm extremely impressed with with ease at.. create a window in .net for example something as simple as Form form new Form form.ShowDialog is enough to get a blank form.. in .net for example something as simple as Form form new Form form.ShowDialog is enough to get a blank form up on the screen...
How do you debug a Windows Service? http://stackoverflow.com/questions/5156427/how-do-you-debug-a-windows-service start as service or regular app i.e. in this case show a Form or start the service static void Main string args if 1 args.Length..
Developing Internet Explorer Extensions? http://stackoverflow.com/questions/5643819/developing-internet-explorer-extensions Include System.Drawing Reference Include System.Windows.Forms Reference Include System.Xml Create the following files IEAddon.cs.. using System.Runtime.InteropServices using System.Windows.Forms using Microsoft.Win32 using mshtml using SHDocVw namespace.. the text to highlight...' var form new HighlighterOptionsForm form.InputText TextToHighlight if form.ShowDialog DialogResult.Cancel..
How to embed Windows Form in unmanaged ATL GUI? http://stackoverflow.com/questions/642082/how-to-embed-windows-form-in-unmanaged-atl-gui to embed Windows Form in unmanaged ATL GUI I have a Windows form user control that.. about ATL but this can be done easily in MFC using CWinFormsView and CWinFormsControl classes. I think there is no bulitin.. this can be done easily in MFC using CWinFormsView and CWinFormsControl classes. I think there is no bulitin support to host..
How to display a cv::Mat in a Windows Form application? http://stackoverflow.com/questions/9580397/how-to-display-a-cvmat-in-a-windows-form-application to display a cv Mat in a Windows Form application I tried to use imwrite to successfully to display.. imwrite to successfully to display an image on a Windows Form but it damages the disk so I need a better way to do this. Below.. frame.widht frame.height System Drawing Imaging PixelFormat Undefined System IntPtr frame.imageData I want to display..
unresolved external symbol..no idea [duplicate] http://stackoverflow.com/questions/9928238/unresolved-external-symbol-no-idea me where should I be looking for what kind of errors 1 Form.obj error LNK2019 unresolved external symbol public class Field.. referenced in function public void __thiscall Form parse class std basic_stringstream char struct std char_traits.. struct std char_traits char class std allocator char parse@Form@@QAEXAAV basic_stringstream@DU char_traits@D@std@@V allocator@D@2@@std@@@Z..
Common macro to read input data and check its validity http://stackoverflow.com/questions/15792984/common-macro-to-read-input-data-and-check-its-validity a common macro like #define SCAN_ONEENTRY_WITHCHECK FORM X COND FORM format of the input data like d lf s X address where.. macro like #define SCAN_ONEENTRY_WITHCHECK FORM X COND FORM format of the input data like d lf s X address where to store.. for this question will be #define SCAN_ONEENTRY_WITHCHECK FORM X COND while scanf FORM X 1 COND printf Invalid input enter..
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