13 Solved Topics
Remove Filter  | I have a some libraries which have a lot of common classes but the namespaces are different. Most of the code I was writing could be easily reused by classes in both libraries so after some reading I tried a technique of using the templates to pass namespace. As you … |
| | I have been reading the 'inside the c++ object model' by Lippman and one of the sections has me a little confused. It is the section where the author explains how virtual tables are created and virtual pointers assigned, in the scenario of multilevel, single inheritance. If anyone here has … |
| | Hi, I'm using istream_iterator to read input from standard i/p and writing it to standard o/p using ostream_iterator. I expected it to print the input to the console when I hit enter and then exit but it loops for next input after printing and so on. [code=c++] #include <iostream> #include … |
| | Hi, I have always been a little confused about inline/non-inline virtual functions and got a little more confused when I read this in a book: According to the book the code below will fail to link on many systems(it gave no errors on mine, g++ 4.4.1). The explanation is "Even …  |
| | [code=c++] int main() { int i=10; char arr[i]; } [/code] I was expecting an error but it is compiling without any issues. I'm assuming the g++ compiler is doing something but not sure how to disable that. This is my compiler info [quote] Using built-in specs. Target: i486-linux-gnu Configured with: … |
| | [code=c++] class A: public B { C* p1; C* p2; } [/code] What would be a correct assignment operator for class A? We have to ensure that we do not leave any object in an inconsistent state due to any exceptions or create any dangling references or memory leaks.  |
| | hey guys, I have a fixed length .txt file. Values in the file correspond to columns in a db table. ex file row is something like: [B]India 3455 78787 89898[/B] table has columns something like: [B]column_name length startPosn EndPosn[/B] country 6 1 6 ID 6 7 13 so you see …  |
| | This code here is giving segmentation fault. Any clues why? also any general tips for writing good multi-threaded code are welcome. [code=c++] #include <windows.h> #include <process.h> #include <iostream> using namespace std; unsigned __stdcall Display(void* p) { Sleep(500); cout << "Display" << endl; cout << *((int*)p) << endl; return 0; } …  |
| | Hi, Below is my test code, i have a list of names in a file, i read the names and i have to insert them as menu options in the menubar. Since its a dynamic menu and people can add new menu's it has to be read from a file … |
| | [code=c++] #include <iostream> using namespace std; class Lock { friend class First; private: Lock() { } }; class First : virtual public Lock { public: void function() { cout << "function1" << endl; } }; class Second: public First { public: void function2() { cout << "function2" << endl; } … |
| | Hi, When i search for a pattern in a file how do i get the line and line#? basically i want to replicate the 'grep' command functionality. Now i can easily say whether the pattern exists or not using re.search funtion but i'm not able to print that particular line … |
| | Hi.. whats the best way to initialize a char* ? i tried using char* p = ""; and it gives segmentation fault at times. not sure how to initialize it. this is the function where i'm using it. screenReturnValue variable is not getting initialised properly everytime, when i call this … |
| | hi, I have a XML in a String coming from an external input. The problem is that this string is getting some junk characters appended to in the last. I need to find the lenght of the string only till the correct part. once i get this lenght i can … |
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