51,593 Topics
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| | Hi there, How to set vector size in Class ? I have set vector size at time of daclaration but it does not work. And should we have to deallocate vector memory in destructor ? #include <iostream> #include <vector> //included to use vector using namespace std; class VectorDemo { private: …  |
| | i have exe file generated by the Compilation of C++ program now I want to pass arguments to the generated exe file through C# and save all of the output of exe file on a .txt file this is What i have done so far public static string RunCmd(params int[] …  |
| | Hey Guys, Was wondering if anyone could help me with this sort function for a vector of struct type. What i'm aiming to do is to make a score board being based on a player's score and print out the scores (along with the name) in descending order. I've looked … |
 | how to write definition head for a template function that returns enum. I got a template funciton List<List_entry>::print_List(){code..} but I dont get how to return an enum. My current head is : template<class List_entry> List<List_entry>::Error_code List<List_entry>::put(const List_entry &x){code..} but it errors me that I need 'typename' before 'List<List_entry>::Error_code' because 'List<List_entry>' … |
| | I can't make this game now. I don't know how. please help me  |
| | can you please help me, how can i read a wav file byte by byte and then play this file without using PlaySound Function. any help ?  |
 | how can i build a typedef with variadic operator? what i mean is that i need build these: typedef std::function<void(void)> Event;//works fine, but for any parameters typedef std::function<void(...)> Event; //no errors Event test(int x, int y)=[](int x, int y) { int a=x+y; string b=tostring(a); MessageBox(NULL,b.c_str(),"hello",MB_OK); }; in these sample i … |
 | hi. how can a decimal value be converted to binary in a c++ program? |
 | while loop or doo loop the output should be like this 1 12 123 1234 123 12 1 and 1234 123 12 1 12 123 1234 tnx |
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 | Hi All, 1)It's easy to create a window in QT that the user can resize, but when they make the window bigger, all the contents stay where they were in the top left hand corner. They don't grow with the window. 2)Also when the window is launched the size of … |
 | OK - I'm stumped I'm filling a 2D arraywith inputs, then when it hits the first function - for some reason the very first value in the array is being changed to -5 If I comment the function out, it's fine - it gets passes and passed back with no … |
| | i'm buiding an image class, but i need some information... the C\C++ teach how read binary\text files... but not how the files are build like JPEG, PNG, GIF and others :( i can't find a page for give me the file struture and when i found it, i only see … |
 | a) SYNTAX, LOGIC and RUN-TIME are three types of errors a programmer will encounter during program development. Distinguish carefully between them and give a meaningful example of EACH. b) In high-level languages, different data types such as INTEGER, REAL, STRING are provided. Explain why different data types are needed and …  |
| | a) Program code is often written using procedures. Give THREE advantages of using procedures in programming. b) Write an algorithm (pseudocode or flowchart) for a procedure to validate the input of a date in February in any year. The date should be input in the form ddmmyyyy e.g. 07021998 You … |
 | Define a class for rational numbers. A rational number is a number that can be represented as the quotient of two integers. For example, 1/2, 3/4, 64/2, and so forth are all rational numbers. (By ½, etc we mean the everyday meaning of the fraction, not the integer division this …  |
| | I want to add jni code into my servlet,i have used JNI in my desktop application but now i want to add in my java web project. let me tell you a condition.i have logic code on c++ and i want to add that code with my java web project.so …  |
| | Hello there. I recently have been teaching myself C++ and have come across something that I just can't seem to grasp. I undersatdn the basics of structures but when it comes to this nesting type situation I just can't figure out what is going on. If someone could explain in … |
 | We have Escape sequences in C++ Dont we have any escape sequence for displaying astriek (****) when i want a user to enter a 4 digit PIN (int). |
 | Hello how can I read xml file without using xml librariy in C++ here http://www.cplusplus.com/forum/general/140931/ |
| | Write a complete program that reads three integers from the console and outputs the number of distinct values entered. For example if the input is 34 55 23 then the output will be 3, since there are three distinct values . If the input is 42 78 42 then the …  |
| | Hi all, I have an xml file with some information inside it. I want to load this xml during runtime and generate an equivalent HTML document for this xml file. All this needs to be done programatically and on the fly during runtime. How could i do this? I'm using …  |
| | Hi. I'm trying to use brace-initialization notation: int number{}; But I get the following error: "expected an expression". Shouldn't c++11 allow this kind of initialization? int number2(4) works just fine. Thank you. |
| | Your Math class has five 100 point tests over the course of a semester (and nothing else that counts toward your grade). In addition to getting an average score of 70/100 you must pass at least three individual tests in order to pass the class . For example, if your …  |
| | Hi all! I'm having some trouble with constructors and destructors. I've been told that a constructor creates an object and a destructor destroys it. The problem is that in my code I try to destroy `straight2`, but I can still print out it's length as if it wasn't destroyed at … |
 | Here is my code: #include <string> extern std::string commands[]; extern std::string shortcuts[]; int in_array(std::string ar[], std::string txt){ for(int i=0;i<ar->size();i++){ int g=ar->compare(txt); if(!g){ return i; } } return -1; } int actioncmd(char* command){ int act=in_array(shortcuts,command); if(act==-1){ return -1; } act=in_array(commands,command); return act; } I'm simply trying to find out whether a … |
 | i am trying to write input() function into file..... please help.... i am using visual studio 2013 // N Copy.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include "iostream" #include "fstream" using namespace std; int _tmain(int argc, _TCHAR* argv[]) { fstream file; file.open("NCopy.txt"); file << …  |
 | Hi can any one tell me please does visual studio 2012 support any features of c++11? Or only in 2013 version? |
| | Without using arrays, write a complete program that reads three integers from the console and outputs the same three numbers in ascending order on separate lines. For example if the input is 5 4 3 then the output will be 3 4 5. Do not prompt the user or produce … |
 | Hi Dw I'm creating a wosa/xfs I've followed correctly the guide and the code has no error till I try to debug it or build it. I get this error 1) error LNK2019: unresolved external symbol_WFSStartUp@8 referenced in function "int_cdecl Wfs_Startup(void)" (?Wfs_Startup@@YAHXZ) 2) error LNK2019: unresolved external symbol_WFSOpen@36 referenced in … |
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| | Hello everyone!i'm new here and in c++ programming.I've wrote about 30 small programs and when i close the program and want it to run after, it compile well but when i'm waiting the answer, it comes and goes fast.i've tried to put cin >> a; as told me someone to …  |
 | Hi! To Everyone! Could you tell me how I can use GCC with that file comunicatoin, because : g++ main.cpp program1.cpp -o program1.exe - not valid - It didn't saw program1.h and all declaration in him. I had the task : Write a program that prints the numbers from 1 … |
| | Hi Dw. I'm developing a system using c++ for the XFS. I've followed the documentation on how to install the SDK but the problem is that I've successfully installed the SDK but when I start to create the sample, when I try to put the required includes they are not … |
| | Please help me in this code http://www.cplusplus.com/forum/general/140501/ |
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| | I'm really new to programming, and I really only know web scripting. But I want to excel in programming. Anyway, what languages would be used to create something like adobe photoshop? I've created about 2 programs using c++, but they're like those tutorial things where they run in DOS, and … |
| | Can you initialize (easily/simply) a vector with multiple values? Like an array:`int fu[] = {1, 3, 4, 5, 6}` |
 | hi :D We've been asked by our instructor to create a program that will accept your birthdate and display the chinese zodiac sign and its description using *switch* statement. Should i have to input all the possible birthdays ?or is there a shortcut for this? by the way we are … |
| | hi can any one know how to program in c++ the *143# in globe all iknow is u can use if else conditional statement!! tnx in advance  |
 | i want to calculate the standard deviation of an arrayed elements using functions |
 | Hello all, What I am doing is the following: 1. Receiving an expression 2. Instantiating Variables 3. Convert the expression from infix to postfix 4. Evaluate the expression. Now, in my evaluate function the following operators are working: + - * / and ^ I am having trouble to get … |
| | Hi guys so I just finished all the basic tutorials on C++ on this channel [Click Here](https://www.youtube.com/playlist?list=PLS1QulWo1RIYSyC6w2-rDssprPrEsgtVK). I don't know if its any good but it started me off. But now I have watched everything and I am wondering where to continue and I decided to ask here. Any good … |
| | Greetings everybody, I have been developing a C++ project in VS2010. When I was writing data into a file, everything was ok. I modified the program to write data into a new array instead of a file. I had an error of stackoverflow. I checked the datatypes, array lengths etc. … |
 | Can someone help me about converting numbers to roman numeral 1-999 via switch statement ? please help me ! |
| | Uhmm. I need help! I need a code in our case study. And I don't know how to start it. Please, someone help. I need to pass this on thursday, August 21 2014. Huhu :'( I really don't know. I'm no IT/CompScie or whatever computer related courses but I have … |
| | im using windows 7 64bit along with codeblocks and mingw and im trying to use non standard c++ libaries such as SDL , allegro and sfml but when i link them and try to compile the examples some work and some dont i wonder what i did wrong ? I …  |
| | Develop class Polynomial. The internal representation of a Polynomial is an array of terms. Each term contains a coefficient and an exponent. The term 2x 4 has the coefficient 2 and the exponent 4. Develop a complete class containing proper constructor and destructor functions as well as set and get …  |
 | A need a program that will ask the persons age , type of car needed and the number of days the car is needed. if the driver is <= 25 years of age than 20% surcharged  |
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