c++

format, iomanip, c++

I'm trying to learn to use namespaces declarations more definitive than not just say "using namespace std". I'm trying to format my data to 2 decimal places, and set the format to be fixed and not scientific. This is my main file: #include <iostream> #include <iomanip> #include "SavingsAccount.h" using std::cout; using std::setprecis...

Silverlight for windows embedded

Dear All This is my xaml file. <UserControl xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Class="SilverlightApplication1.Page" Width="640" Height="480" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/mar...

Load a Lua script into a table named after filename

I load scripts using luaL_loadfile and then lua_pcall from my game, and was wondering if instead of loading them into the global table, I could load them into a table named after their filename? For example: I have I file called "Foo.lua", which contains this: function DoSomething() --something end After loading it I want to be ...

How to call a unmanaged C++ exe from managed c++ exe.

Please tell me how to call a unmanaged c++ exe functions from managed c++ exe or dll? help with code example would be more useful. Thank you ...

Why is floating point byte swapping different from integer byte swapping?

I have a binary file of doubles that I need to load using C++. However, my problem is that it was written in big-endian format but the fstream >> operator will then read the number wrong because my machine is little-endian. It seems like a simple problem to resolve for integers, but for doubles and floats the solutions I have found won't...

fftw in Visual Studio?

I'm trying to link my project with fftw and so far, I've gotten it to compile, but not link. As the site said, I generated all the .lib files (even though I'm only using double precision), and copied them to C:\Program Files\Microsoft Visual Studio 9.0\VC\lib, the .h file to C:\Program Files\Microsoft Visual Studio 9.0\VC\include and the...

Difference of function argument as (const int &) and (int & a) in C++

I know that if you write void function_name(int& a), then function will not do local copy of your variable passed as argument. Also have met in literature that you should write void function_name(const int & a) in order to say compiler, that I dont want the variable passed as argument to be copied. So my question: what is the difference...

multiple definition in header file

Here is a small code-example from which I'd like to ask a question : complex.h : #ifndef COMPLEX_H #define COMPLEX_H #include <iostream> class Complex { public: Complex(float Real, float Imaginary); float real() const { return m_Real; }; private: friend std::ostream& operator<<(std::ostream& o, const Complex& Cplx); fl...

iMX31 dependencies?

Dear all I am beginner in an silverlight application. So at first i looked on demo application which is provided by wince 6.0 r3 at location WINCE600\PUBLIC\COMMON\OAK\DEMOS\XAMLPERF - this contains c++ code and WINCE600\PUBLIC\COMMON\OAK\FILES\XAMLPERF - this contains xaml file with the images Now before running this applic...

C++ split string

I am trying to split a string using spaces as a delimiter. I would like to store each token in an array or vector. I have tried. string tempInput; cin >> tempInput; string input[5]; stringstream ss(tempInput); // Insert the string into a stream int i=0; while (ss >> tempInput){ input[i] = tempInput; ...

Extracting a reference from a c++ vector

Hello folks, I have a vector< vector< vector< int>>> and I would like to extract from it a vector< vector< int>> to process it individually. The problem is that when I write : myMatrix = myCube[anIndex]; the matrix is copied but I only want a reference in order to save memory. Can you please help me out ? Thanks a lot! ...

Cannot insert a breakpoint in shared Library

Friends While debugging an application of of the function is defined in a shared library which is written by another vendor . and I get an error like warning: Cannot insert breakpoint 0: in /opt/trims/uat/lib/libTIPS_Oleca.sl warning: This is because your shared libraries are not mapped private. To attach to a process and debug its ...

C++ standard: dereferencing NULL pointer to get a reference?

I'm wondering about what the C++ standard says about code like this: int* ptr = NULL; int& ref = *ptr; int* ptr2 = &ref; In practice the result is that ptr2 is NULL but I'm wondering, is this just an implementation detail or is this well defined in the standard? Under different circumstances a dereferencing of a NULL pointer should re...

From Java/C++ to XML

I know Java and C++ but am looking to get in to XML. I don't want to waste time reading over the basics of programming in a book, so has anyone any recommendations for resources for learning XML that assume a knowledge of programming already, or even better highlight how to switch from Java/C++ to XML ie. main differences etcs. ...

C++ struct sorting error

I am trying to sort a vector of custom struct in C++ struct Book{ public:int H,W,V,i; }; with a simple functor class CompareHeight { public: int operator() (Book lhs,Book rhs) { return lhs.H-rhs.H; } }; when trying : vector<Book> books(X); ..... sort(books.begin(),books.end(), CompareHeight()); it gives me e...

dynamic array of class

I want to make a dynamic array of class objects. Though it is dynamic I have to calculate some size before initiating them; what strategy should I apply? ...

Is there an easy way to check a fundamental type

In < Modern C++ Design >,it introduces a way to check if a type fundamental type by introducing the so called type list. but what if I don't want to include so many loki code and just want a simple function to implement that? What is the simplest way to do that? ...

Path variable to mso.dll and msoutl.olb

Hey, I'm trying to develop a toolbar for Microsoft Outlook. For getting it to work I need mso.dll and msoutl.olb as an import. My problem is: the path is hardcoded , but it varies for every OS and of course if someone doesn't install Office to the default path. I tried it this way http://support.microsoft.com/kb/234788/en-us/ but ...

How are iterators and pointers related?

Code with iterators looks pretty much like code with pointers. Iterators are of some obscure type (like std::vector<int>::iterator for example). What I don't get is how iterators and pointer are related to each other - is an iterator a wrapper around a pointer with overloaded operations to advance to adjacent elements or is it something...

C++ delete[] operator

Is this the right way to use delete[] operator? int* a=new int[size]; delete[] a; If yes, Who (compiler or GC or whoever) will determine the size of the newly created array? and where will it store the array size? Thanks ...