C++ :: How To Make Multiple Endlines
Jan 20, 2013Is there a way to make multiple endl instead of using the following:
cout << endl << endl << endl
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C/C++ :: How To Make Multiple Subroutine And Return Multiple Arrays
Aug 17, 2014how to make subroutines and return multiple arrays.Before that, i wrote my program on matlab. could my program to be structured as following?
<header>
initial value of program;
subroutine1() {
calculating the first work;
return 2 or 3 arrays;
[code].....
C :: How To Make Custom Program For Packaging Multiple Files In One
Nov 5, 2014I want to make a custom program for packaging multiple files in one. Not as complicated as ZLIB or others. Consider few files, XML, txt, JPG, OGG, I want them to be added in 1 file. Not visible not readable. Just a datafile. I have some ideas about creating some kind of indexing of the start byte, end byte of each file. But I am still way too far. Can you point me some direction at what should I stress in creating this software. It will be portable since I am planning to use stdlib, stdio only, maybe and string to recreate the filenames from the large chunk datafile.
View 2 Replies View RelatedC++ :: Make A Table Class That Will Be Able To Have Multiple Columns Of Data?
Sep 17, 2014I am trying to make a table class that will be able to have multiple columns of data. I want it to have something to hold data (I was using a 2D vector for only one data type) in it, somewhat like a pair, but for any number of data types. The class is a template to make it generalized.
I have looked a little at variadic templates, but I don't know how to declare the vectors for each data types then.
C :: How To Emulate Object Orientation With Multiple Files And Make File
Feb 13, 2013how to structure my classes so that they all "wire together" and inherit the proper functions and data that I want them to. I want to have a Car.c and car.h which are "wired" with body.c/body.h, which in turn is wired with a frame.c/frame.h, wheel.c/wheel.h, and driver.c/driver.h.
Each part of the car holds some type of data, mostly ints: The car has a (total) mass and car_name. The body has a mass and color. The frame has a mass. The wheel(s) have a mass and force. [There will be 4 instances of wheel] The driver has a mass and driver_name. Each of these functionalities must come from their respective .c and .h files, and be amalgamated in the car.c and car.h (which should contain all the functionality of its parts). Then, in my main test program, I am to make an instance of car and hardcode in its values of: mass (which comes from the total mass of all of its parts, this is where i start to lose it.
How will I access its parts' masses in the test program?), color (a character array), current position (an integer), current velocity (an integer), and current acceleration (which comes from the total newton force of the 4 wheels, again this is where I start to get very confused). (Then in the test program I am to print out a simulation of this car over a period of 100 seconds, and show its position, velocity, and acceleration at each point (based on the mass, total newton force, and starting position). This part is of course a simple while loop, and is somewhat trivial.)
From what I understand, I will need to allocate memory for all of the data each class holds. Then, using function pointers, as well as #include "X.h" , I will need to somehow link up all of the classes together so that car has access to all of the parts' functions which set, for example, the newton force of each wheel.
We have learned a slight bit about structs, malloc, sizeof, and pointers, but I have not used them to link functionality or data from separate classes together.
Visual C++ :: Can't Make Double-buffered Painting With Multiple Monitors
Sep 19, 2012I'm trying to remake my Windows screensaver written with C++ and WinAPIs to work on multiple monitors. I found this article that gives the basics. But when I implement it in my own code, I get a weird result. Take a look at this code:
Code:
case WM_PAINT: {
PAINTSTRUCT ps = {0};
HDC hdcE = BeginPaint(hWnd, &ps );
EnumDisplayMonitors(hdcE, NULL, MyPaintEnumProc, 0);
EndPaint(hWnd, &ps);
[code]....
Painting always works on a primary monitor. But when I paint to the secondary monitor, I can only paint directly to its DC. When I use double-buffering technique (with DIRECT_PAINT pre-processor directive commented out) I only get a black screen on a secondary monitor when it should've been red.
First one with direct painting that works:
and then the one that doesn't, with double-buffering technique:
C# :: Multiple Desktop Display (Multiple Explorer Windows)
Jul 31, 2014I want to develop an application which can host multiple views of explorer (window), where as each window is totally separate from others. So that I can have multiple desktop views through my single explorer. Any built in feature in .NET ?
View 11 Replies View RelatedC :: Redirecting Multiple Pipes With Multiple Children
Mar 21, 2014I've been working on a function that works like a pipeline of a shell but receives a directory, go over it an search for every file to send it to a filter, something like this in bash "cat dir/* | cmd_1 | cmd_2 | ... | cmd_N", The only problem i have with the code is the redirection of the pipe descriptors.
Code:
int main(int argc, char* argv[]){
char** cmd;
int Number_cmd;
cmd = &(argv[2]); /*list of cmds*/
Number_cmd = argc-2; /*number of cmds*/
}
[code]....
The code is seems to work fine except when i run it with more than one command in example ("./filter DIR wc rev") in this case it returns
wc: standard input: Bad file descriptor
wc: -: Bad file descriptor
0 0 0
C++ :: Multiple Files Causes (Multiple Definition) Error?
Jul 15, 2013I'm using multiple C++ files in one project for the first time. Both have need to include a protected (#ifndef) header file. However, when I do that, I get a multiple definition error.
From what I found from research, adding the word inline before the function fixes the error. Is this the right way to do this, and why does it work? Should I make a habbit of just declaring any function that might be used in two .cpp files as inline?
C++ :: Take Max Of Multiple Elements In Multiple Vectors?
Mar 1, 2012Say I have 5 vectors of unsigned char each of size 5. I want to take the max of each index and store it in a new vector. What is the most optimal way to accomplish this?
My slow code:
Code:
vector<unsigned char> vec1;
vector<unsigned char> vec2;
vector<unsigned char> vec3;
vector<unsigned char> vec4;
[Code]....
C/C++ :: Multiple Cin In One Line?
Apr 1, 2014My professor asked my to make a program that makes the "FCFS","SWJ" operations using any programming language actually i preferred c++ i like it more than java so i started in it but i'm facing a little problem ,,, which is i cant enter multiple inputs with a space tabs between them if this possible , for example : i want to get the arrival time and execution time from user
arrival (spaces " ") execution >> i want the input be like this
input1 (spaces " ") input2
C/C++ :: Multiple Class In A Map?
Jul 18, 2012Class1 {
public:
int value;
Class1(int value) {
this->value = value;
[Code] .....
i want use like this for that what can i do ...
std::map<class, Class2> map_Class;
C :: How To Make Sum Columns
Oct 17, 2013I have this code it sums the rows now I need it so it would sum all the columns in the output and put it in row 8 of the outcome. How would I go about doing that?
Code:
#include Code: "stdio.h"
#include "stdafx.h"
int main(void) {
int number[8][7];
}
[code]....
C :: How To Make 918 Print As 18
Aug 27, 2014i am using turbo c++ my program is based on maths equations and my final answer is 918 or any 3 digit number only but i don't want 918 to print instead i want only 18 to print. this program gives different output for every different input so i can't just minus 900 from it and get 18. i just want that no matter what 3 digit number is the answer,i just get the 2nd and 3rd digits while printing it and not the first.
the final answer giving equation is:-
f=2914-1996
where f is my answer and its 918
but i want it to print as 18 not 918
C++ :: How To Make A Window Always On Top
May 11, 2013I want to make a window tgat stays always on top like that of a cybercafe software. A window that cannot be closed, minimised, deactivated, etc... with wxWidgets.
So far I've tried making a frame window with the wxSTAY_ON_TOP flag. It works, but not to perfection because, when i press the windows button, the start menu interferes with the window(and taskbar too). Also, the task manager, how to deactivate it.
- a wjndow that strictly stays on top
- deactivate task manager
C/C++ :: Make A Window?
Oct 15, 2014how to make a window in C++? I am trying to make a program that has a boot screen but I want it to be in its own window because it will have it's own pictures in it and text inside too. So not in a terminal but inside a external window.
View 1 Replies View RelatedC# :: XNA Quanternion Multiple Axis
Nov 28, 2011I made a working version using absolute vextors being rotated by matrices and keeping relative vecotrs for translations. What I didnt like is that I HAVE TO use the standard XYZ axis for rotation.What I decided to do was use quanternions to store current rotation,cthen buffer rotations each time some were done and add it up.The way I see it, it should look somewhat like this:
(in the UpdateRotation part, plz dont mind any typos i make, this isnt the actual current code. Also on a small note I use dictionaries, so dont be surprised xD) Code: RelativeVectors["Up"] = Vector3.Transform(AbsoluteVectors["Up"], (Quanterion)CurrentRotation);
//repeat for Look and Right relative vectors
Quanternion Yaw = Quanternion.CreateFromAxisAngle(RelativeVectors["Up"], RotationBuffer["Yaw"]);
//repeat for roll and pitch
CurrentRotation = Quanternion.Contancate(CurrentRotation,(Yaw*Pitch*Roll));
//
clear the rotation buffer Whats happening right now tho, is that doing this exactly doesnt actually do anything, so I have to use standard axis anyway.
C :: Multiple Functions Within A Program
Jan 22, 2013I am getting an error on lines 31 and 36 about an expected identifier on my program that computes area and circumference. Is something wrong with my external functions outside of main?
Code:
#include <stdio.h>
#define PI 3.14159
double area;
double circum;
double find_circum (double radius);
double find_area (double radius);
[Code] ....
C :: Multiple Reference In One Pointer
Aug 20, 2014Can I a have one pointer with two reference in it. Here's what I've got.
Code:
char* c;
char x='x' , y='y';
c = &x;
c = &y; -- or --
Code: char* c[2];
char x='x' , y='y';
c[0] = &x;
c[1] = &y;
If it's possible I want to apply it to make AST.
C :: Function With Multiple Arguments
Jan 15, 2015I am actually developing an nginx module in C.I am not to bad in C, but i got a big problem to pass argument to a vadiadic function.This function look like the well good old printf, but you put a buffer as first argument, the last address to stop to put data as second argument (in my case it is the last adress of disponible memory), a string that look like one in printf, an the other argument after.Here is the problem, the 4th last argument does not have the good value. In fact, It seem to be random value from memory. I Use gcc (Debian 4.9.1-19) 4.9.1.
Code:
/* ngx_html_log.h */
#ifndef NGX_HTML_LOG_H
#define NGX_HTML_LOG_H
#include <ngx_vasm.h>
}
[code]...
C :: Multiple Entries Into Scan?
Sep 19, 2014How would I be able to let the user enter multiple heart rates which would all be separate.
Code:
printf("Enter your recorded Heart Rates ");
scanf("%d", &in_rate);
//formulas
if (gender == 'm'){
target = 226 - age;
} else if (gender == 'f'){
[Code]...
C :: How To Use Multiple Delimiters On A String
Mar 19, 2013This is part of a bigger program im working on that deals with data structures, but I'm trying to figure out a way to tokenize a long file of purchases that is being read to my program. I rewrote the program to pinpoint my problem. I need to get the name, cost, item and quantity from this string. I figured out how to look for the cost, but what about the name and item(shirts)? How can I do this all in one loop because there are multiple strings and i'm gonna eventually send all the info to a data structure for each person(name)? I'm only asking about the tokenizing part, but this code works for the cost.
Code:
int main(void) {
char myString[] = "Angela bought 9 shirts for $6 each." ;
char * del = " " ;
char * token ;
[Code].....
C :: How To Have Multiple Reads From Same File
Aug 25, 2013I am attempting to break up a file into smaller chunks and have it process the different parts of the file in parallel to speed up the entire process. I was thinking maybe 4 chunks at a time. How do I get my program to do this? Is there a good book explaining parallel processing in C?
View 7 Replies View RelatedC :: If Statement With Multiple Conditions
Feb 26, 2013I have tried writing a code and come across an issue where I'm not getting the desired result. It is to design a program that tells whether gas emissions from a car are too high, or permissible. The instructions are to design a code where there are four possible choices of pollutant, whether the emitted pollutant ratio is greater or less then a certain value, and the mileage on the car. All of these are supposed to determine whether the emissions are permissible or not, which would be displayed with printf. (The actual conditions of the assignment are described perfectly by the code below, so I didn't think it would be necessary to write it out. The problem is that I'm getting a logical error.) Here's the code:
Code:
#include <stdio.h>
int main() {
int poln, odr;
double gpm;
printf ("(1) Carbon Monoxide
[Code] ....
My error is that the program will proceed with the first four if/else statements, but once the 'poln' value changes to something other then one, it will not display the expected quotation.
C++ :: Using Cin That Accept Multiple Inputs
Feb 14, 2013For a program I am required to use a cin that accepts 4 variables. The first describes a function such as add(), remove(), print(), or quit(). The problem is that to use add() I need to input all 4 variables but for remove(), only 2 variable input is needed.
I want the input to be "add 9 James Bond"
or be "remove 341"
Here is my current code.
int command(string command, int Id, string first, string last){
while (command != "quit"){
cout << "customers> ";
cin >> command >> Id >> first >> last;
if (command == "add")
[Code] .....
C++ :: Headers With Multiple CPP Files
Mar 22, 2013So I have a rather large (for me) project, requiring me to have two .cpp files and a header. Anyway, both of the .cpp files #include the header file, but I recieve linker errors because the variables and functions in the header are declared and defined twice (once in each .cpp file). How am I supposed to do this?
View 8 Replies View Related