Hi folks, I have a c++ app that calls another python one (bundled into an exe with py2exe) So I have 2 apps. So I was wondering: What if my c++ did what py2exe does? i.e. embed the python app in the c++ one. This way I won't depend on py2exe and its configurations nighmares (yes, it has some) Hence my questions: how does py2ex...
This is what I'm trying to do and I can't: #include <string> using namespace std; class A { public: bool has() const { return get().length(); } string& get() { /* huge code here */ return s; } private: string s; }; The error I'm getting is: passing ‘const A’ as ‘this’ argument of ‘std::string& A::get()’ discards qualifiers I ...
I have a small project where I need just part of boost library, boost::regex in particular. This is what I've done so far: /include /boost /regex /math .. 189 dirs, files, etc. /lib /boost-regex c_regex_traits.cpp cpp_regex_traits.cpp .. ~20 .cpp files myprog.cpp In my Makefile I compile all boost-regex .cp...
In scripting languages like Perl, it is possible to read a file into a variable in one shot. open(FILEHANDLE,$file); $content=<FILEHANDLE>; What would be the most efficient way to do this in C++? ...
Is there any easy way to create at least a template XML file using XML Schema? My main interest is bounded by C++, but discussions of other programming languages are also welcome.By the way I also use QT framework. ...
The current C++0x draft states on section 29.3.9 and 29.3.10, pages 1111-1112 that in the following example: // Thread 1 r1 = y.load(memory_order_relaxed); x.store(1, memory_order_relaxed); // Thread 2 r2 = x.load(memory_order_relaxed); y.store(1, memory_order_relaxed); The outcome r1 = r2 = 1 is possible since the operations of each...
i am working on a project where i am using SysRc values as return values from some function like SUCCESS and FAILURE ond sum enums . Now i want to know how to get them print? ...
Hello, I am trying to improve my knowledge on program architecture and recently arised a question to me which is related with this pointers issues I posted recently. The thing is that in a simple hierarchy in which you have Class A with a pointers to Class B and the last to Class C. Do not confuse the with the inheritage property of th...
I am trying to use qsort from STL to sort array of edge: struct edge { int w,v,weight; }; by weight. What I am trying is: int compare_e(const void *a, const void *b) { return ( *(edge *)a->weight - *(edge *)b->weight ); }; But I get: `const void*' is not a pointer-to-object type EDIT: Ok thx, now my code is compil...
Hi, i am trouble with this.. Is there some solution or i have to keep exactly class types? //header file Class Car { public: Car(); virtual ~Car(); }; class Bmw:Car { public: Bmw(); virtual ~Bmw(); }; void Start(Car& mycar) {}; //cpp file Car::Car(){} Car::~Car() {} Bmw::Bmw() :Car::Car(){} Bmw::~Bmw() {} int...
I've been looking for a C++ SQL library implementation that is simple to hook in like SQLite, but faster and smaller. My projects are in games development and there's definitely a cutoff point between needing to pass the ACID test and wanting some extreme performance. I'm willing to move away from SQL string style queries, allowing it to...
I installed a global mouse hook function like this: mouseEventHook = ::SetWindowsHookEx( WH_MOUSE_LL, mouseEventHookFn, thisModule, 0 ); The hook function looks like this: RESULT CALLBACK mouseEventHookFn( int code, WPARAM wParam, LPARAM lParam ) { if ( code == HC_ACTION ) { PMSLLHOOKSTRUCT mi = (PMSLLHOOKSTRUCT)lParam; ...
I had a piece of code which uses windows SHFileOperation function with FO_MOVE operation. Additional flags specified were FOF_NOCONFIRMATION | FOF_NOERRORUI | FOF_SILENT. A particular weird behavior was observed when the destination drive was full. In this case, MOVE could not place the file in destination folder but the source file was...
Hello everyone, I have a test.exe that need to be called in my main application and run in the background (my main app must stay on top). I know we can use CreateProcess with hide option in MFC, but in windows mobile library the startupinfo is unavailable. So does anyone have an idea how to do ? Besides, is there any way that we can l...
This is a follow up to my previous question. Consider that I write a function with the following prototype: int a_function(Foo val); Where foo is believed to be a type defined unsigned int. This is unfortunately not verifiable for lack of documentation. So, someone comes along and uses a_function, but calls it with an unsigned int ...
Hi, I've got a C/C++ question, can I reuse functions across different object files or projects without writing the function headers twice? (one for defining the function and one for declaring it) I don't know much about C/C++, Delphi and D. I assume that in Delphi or D, you would just write once what arguments a function takes and then...
Hi, I have an issue with the following code : class quicksort { private: void _sort(double_it begin, double_it end) { if ( begin == end ) { return ; } double_it it = partition(begin, end, bind2nd(less<double>(), *begin)) ; iter_swap(begin, it-1); _sort(begin, it-1); _sort(it, end); } public: quicksort (){} ...
I have several C++ strings with some words. I need to get first word from every string. Then I have to put all of them into a char array. How can I do it? Thanks i advance! ...
C++ is one of the most used programming language in the world since like 25+ years. My first job as programmer was in C++ and I coded in C++ everyday for nearly 4 years. Now I do mostly PHP, but I will forever cherish this C++ background. C++ has helped me understand many "under the hood" features/behaviors/restrictions of many other (...
I needed to include a few c headers ( non standard header files ) in my C++ code to be compiled by gcc. The C header (foo.h) has support for : #ifdef __cplusplus extern "C" { #endif and similarly at the end for }. The c++ code has the include "foo.h" I believe I should be able to just include the header (foo.h) and create instan...