C++ :: How To Pass A String To A Function
Sep 12, 2013How can I pass the name from the user input to the constructor ?
Code:
#include <iostream>
#include <string>
using namespace std;
class myClass {
[Code]....
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C++ :: Pass 2 Arrays Into Void Function And Return Values To One Function?
Feb 12, 2014I'm trying to pass 2 arrays into a void funtion, and return values to one function.
this is the the program I'm working with, after I'm done I have to split it into 3 files, a header, a main, and a separate cpp file for the functions to live in.
#include <iostream>
using namespace std;
void processArrary(int numberCount[], int Numbers[], int intnumberSize, int numberCountSize);
int main() {
int Scores[26] = {76, 89, 150, 135, 200, 76, 12, 100, 150, 28, 178, 189, 167, 200, 175, 150, 87, 99, 129, 149, 176, 200, 87, 35, 157, 189};
int numberCount[8] = { 0 };
[code]...
The goal of this program is to separate and count the groups of numbers then output the amount of numbers in each group. Near as I can tell, everthing should work, but I'm getting all zeros to be displayed in each group.
C/C++ :: How To Pass String From VB6 Into Arduino
Mar 6, 2015how to pass a string from vb6 into the gsm module ... i am posting vb6 code ... below code passes
check1.caption=11BNELE0455 to MSCOMM2.output...
Static col As Integer
col = 3
lbl: If excelws.Cells(10, col).Value = "" Then
excelws.Cells(9, col).Value = Format(Now, "dd/mm/yyyy")
If (check1.Value = 1) And (Timer1.Enabled = True) Then
excelws.Cells(10, 1).Value = check1.Caption
[Code]...
now i want to access this string a=0455 from c-code of arduino..how can i access this.. below is c-code for arduino uno.what is wrong with it.it is giving me error:invalid conversion from 'int' to 'const char*'.
//decalaration part of my code
#include <SoftwareSerial.h>
char inchar[80][5]; // Will hold the incoming character from the GSMshield
SoftwareSerial SIM900(7, 8);
String textForSMS;
[Code]...
C++ :: Retrieving File Object From Function Then Pass To Another Function?
Jun 27, 2014I would like to have 2 functions. (FYI, I haven't even tested these because I don't have a compiler on this PC, so don't know what they'll do. I'm also new to C++, self-teaching.)
My question is, I'm sure that oFile should be type object (of some sort), not int, but I'm not sure how to reference it correctly so that it passes from FileOpen to main to FileClose.
Code:
#include <iostream> //I/O
using namespace std;
#include <fstream> //files
using namespace ios;
int FileOpen(string fileName) {
ifstream oFile (fileName); //attempt to open file
[Code] ....
C++ :: How To Pass A String Variable To Message Box
Feb 20, 2013I am having trouble finding the solution to printing the contents of a variable. Here is my code:
void OnSize(HWND hwnd, UINT flag, int width, int height) {
std::wstringstream ss (std::wstringstream::in | std::wstringstream::out);
ss << flag;
std::wstring myStr = ss.str();
MessageBoxW(hwnd,myStr, L"Window Resized",NULL);
}
Note, I have #defined UNICODE at the beginning. The compiler tells me this for myStr.
std::wstring myStr
Error: No suitible conversion function from "std::wstring" to "LPCWSTR" exits
C/C++ :: Pass A String As A Parameter And Use It To Open A File?
Feb 21, 2014why I'm getting an error with this code? I'm trying to pass a string as a parameter and use it to open a file:
class txt{
private:
string tempstring;
vector<string> strings;
char filename[10]; //not using this right now
[code]....
but I get this error:
[Note] no known conversion for argument 1 from 'const string {aka const std::basic_string<char>}' to 'const char*'
I thought strings were just const character arrays
C :: How To Pass Main Function Argument To Some Other Function
Dec 26, 2014I am writing a program in which a Fucntion has to be wriiten to parse the Command Line . When I include Code for parsing in main fuction iteslf ,its run ok . But I want to make a fucntion of that code and call it from main ,than it show Segmentation error .
By using Debugging I found Some thing is mess with " -m" Parameter of Command line , But Cant Rectify it ..
Code:
int main (int argc, char *argv[]){
//get_parameter_value(argc,argv);
// buffer[packet_size+1]= char ("'");
while (argc > 1) {
if (argv[h][0] == '-')
[Code] .....
C :: Why Cannot Pass The Address Of String During Printf Or Scanf Functions
Jan 24, 2013Why do we not pass the address of the string during printf or scanf functions like we do for Integer or float variable types?
View 2 Replies View RelatedC++ :: Pass Value From One Function To Another
Mar 30, 2014In this program, I have to ask the user for an employee, then the program will check to see if the file for that employee exist, if it doesnt then it will automatically create the file.
ReadNew function reads the file....check to see if it exist
CreateNew function creates a new file.
In my code I have no problem with the first part of reading file.. and my createnew function works in other programs where I am asking for input of file name to create the file name. However in this code I cannot figure how to automatically pass the input filename from the ReadNew function to the CreateNew function. I can't ask the user to enter the name a second time, so I have to pass the input filename into both functions
Here is my code.
Code:
//Create a file, append to it, and read it.
#include <iostream>
#include <fstream>
#include <string.h>
#include <stdio.h>
using namespace std;
char filename[256];
string n;
string filelist;
void CreateNew(ofstream & FileNew);
[Code]...
C++ :: Pass Array From One Function To Another
Mar 15, 2013I'm trying to pass an array from one function to another without resorting to pointers and I have to use Pass by Reference. I can't seem to figure it out. I've been looking at many examples and just don't get it.
the function createAbc makes an array populated with the Alphabet. I need to pass that into my display function so that i can work with the array there. I don't know how to pass it in there... :(
#include "stdafx.h"
#include <iostream>
#include <cctype>
[Code]...
C++ :: Pass From Function To Main
Apr 24, 2014Why the value does not return; Here is code
#include <iostream>
#include <string>
#include <ctime> // to use the time function
#include <cstdlib>
using namespace std;
int getUserChoose (int);
[Code] ....
here is the output
Welcome to the program of Rock, Paper, Scissors
The computer is ready to play the game
Are you ready to play the game
Y for yes and N for no
Y
R = Rock; P = Paper; S = Scissors
R
You have choose Rock
1TN
1RM
0U
0C
C++ :: Pass Two Strings To A Function?
Dec 3, 2014I am writing a driver program that will eventually need to pass two strings to a function I am writing in a separate file. I am reading data from a file that is formatted like this:
ac: and
amo: love
amor: love
[Code].....
Only a few of the words are actually being processed in the way I want. It appears that only words followed by a comma are processed correctly.
C++ :: Pass Object As A Pointer In Function
Apr 12, 2013i need to pass myboard.board (board is in the class Cboard and it is an array of int) to a function in a class called piece however this is troubling . i need to pass it as pointer os that i could change its value here under is my code.
main.cpp Code: #include<iostream>
#include"board.h"
#include "pieces.h"
[Code].....
C++ :: How To Pass Function Return From Switch
Aug 23, 2013How to do i fix this code im not good at using function, im trying to pass a statement from switch to my double passengersR i always come out with a error
this output:
Name passenger:
Enter number passenger:
Choose from A to D
if choose A
Total Regular Passenger: 6.19624e-312
did i do something wrong im not really good at function and im trying to learn how to pass switch to void function
Code:
#include<conio.h>
#include <iostream>
#include <Iomanip>
#include <string>
using namespace std;
double passengersR ()
{ double m;
[Code]...
C :: How To Pass 2 Array Pointers To A Function
Aug 4, 2013How would I pass let say 2 array pointers to a function X , allocate memory for them in X , fill them with values and get them back in my main function without creating a structure.
example:
Code:
void X(int *a, int*b){
a= malloc ...
b = malloc ...
// fill a and b
return them back to the main function
}
void main(){
[Code]...
C++ :: Pass A Pointer Into Function - Value Of Char?
Jan 2, 2014I'm having a problem understanding something with pointers. I was trying to pass a pointer into a function in MSVC-2013, like
char* charptr;
and then calling
myfunct(charptr);
and then inside the function i would set charptr equal to another char ptr, simply like
charptr = anothercharptr;
But this actually caused a compile failure in MSVC, saying charptr is being used without being initialized. in Code::Blocks it just gives buggy output.
I solved this issue by calling the function like
myfunct(&charptr);
and declaring the function like
myfunct(char**);
and then I had to dereference the charptr in the function when assigning it to another ptr, so
*charptr = anothercharptr;
It seems like you should be able to just pass a ptr into a function and change its address to that of another pointer? My main question is really, what is the value of a pointer? I thought the value of a pointer was just the memory address it contains. But then I had to reference it to pass it into the function.
What is the difference between the value of the char* charptr written as either charptr and &charptr?
C++ :: How To Pass Char To Function Void
Jun 1, 2013How to pass the char something[8][8] for example to function void ( char pass.....)???
View 7 Replies View RelatedC++ :: Array Into Function As Parameter Pass
May 2, 2013I have been working on this all day, and its due in like an hour and a half. I have done everything the program wants except the last part. Here is the assignment:
Write a program that inputs 10 integers from the console into an array, and removes the duplicate array elements and prints the array. You may assume that all the integers are between 0 and 100, Write at least 1 function in addition to the main function, and pass an array into that function as a parameter. e.g.
Please enter your 10 numbers: 1 2 3 4 5 6 7 8 9 10
The array contains: 1 2 3 4 5 6 7 8 9 10
Please enter your 10 numbers: 1 1 3 3 3 6 7 8 9 9
The array contains: 1 3 6 7 8 9
Please enter your 10 numbers: 1 1 1 1 1 1 1 1 1 1
The array contains: 1
The bolded part is what I cant get to work. I have tried this and it keeps telling me I have not identified the items when I have.
Here is my code:
#include "stdafx.h"
#include <iostream>
using namespace std;
[Code]....
C++ :: How To Pass A Void Function As Parameter
Oct 20, 2013How can I pass a function as a parameter? I have a class that I'm trying to reuse and one of the methods in this class need to take three parameters, two ints and a function. In other words I want to be able to call a custom function every time this method is invoked when used in other classes. The function I want to call will not return any values, its a void function.
In my Class:
void Utility::someFunction(int var1, int var2, void customFunction) {
int num1 = var1;
int num2 = var2;
[Code] .....
C++ :: Pass Address Of Pointer To Function
Sep 25, 2014#include <iostream>
using namespace std;
void myfunc(int* ); // what do i put in these parameters to accept a mem loc of a pointer
int main () {
int x = 5;
[Code] .....
SOLUTION:
#include <iostream>
using namespace std;
//Purpose to create a function that returns a pointer to a pointer
int** myfunc(int**);
int main () {
int x = 5;
[Code] ....
C++ :: How To Pass Variable To A Function In Constructor
Jun 11, 2014In a project I am working on, I have to initialize a window and pass it as a parameter to another constructor, but before the window is initialized, it is passed as a parameter thus causing an error. Here is some code :
Game::Game()
: mWindow(sf::VideoMode(640, 480), "SFML Application", sf::Style::Close)
, mWorld(mWindow) //<---- right here is where the mWindow variable needs to be passed
{
//...
}
Is there a way to make this work???
C/C++ :: How To Pass Multiple Values From One Function To Another
Mar 4, 2015I need to pass multiple values from one function to another and how to do this. Here is my code so far.
#include <iostream>
#include <string>
#include <cctype>
#include <fstream>
using namespace std;
//Function Prototypes//
int charString(string, string, string);
string reverseString(string, string, string);
[Code]...
I basically need to take line1, line2, and line3 and return them to the reverseString function. Also, I am not allowed to do anything like make my own classes. I have to stick to the basics and no higher level programming techniques since we have not learned them yet.
Visual C++ :: Pass A Handle To A Function
May 5, 2013 Visual C++ 2010
I'm using SFML with Visual C++ and need to pass a handle to a function. I've tried to find this on the web with no luck.
The handle happens to be a sprite defined as: sf::Sprite Numbers(MyNumbers);
Now I want to pass "Numbers" to a function.
-
-
getFrame(Numbers);
-
-
???? getFrame(??????) {
Numbers.SetSubRect(sf::IntRect(0,0,63,63));
return ????
}
How do I do this?
C++ :: How To Pass N-dimensional Array To Function
Sep 4, 2014If a function takes N-dimensional array as a parameter, what is generic way to do that? I couldn't figure out a nice way to do that.
View 7 Replies View RelatedC++ :: pass Parameters From Other Application To Replace String Within Text File Before Execute Registry Merge
Jan 27, 2014I'm creating simple console application using Code::Blocks to allow me to pass parameters from other application to replace string within text/registry file before execute the registry merge. Passing parameters to console already success. Now I only have problem with reading file. Example of first line in the registry file is as below.
Windows Registry Editor Version 5.00
However when read into string and output to console using 'cout', it will be show as below with spaces in between.
W i n d o w s R e g i s t r y E d i t o r V e r s i o n 5 . 0 0
Below is my code.
ifstream f("install.reg");
string s((istreambuf_iterator<char>(f)), istreambuf_iterator<char>());
cout << s;
C :: How To Pass Symbolically Name Of Struc Member To Function
Oct 31, 2013I have a struct with several members, for instance:
insert
Code:
typedef struct {
float u;
float v;
float w;
} mystruct;
main ()
mystruct test;
...
I have a piece of code that should operate on test.u that looks like this:
switch (j) {
case 0:
f = test.u + ...;
break;
case 1:
f = X - test.u;
break;
case 2:
f = test.u + 2;
break;
}
Now I would like to use a similar piece of code but for the other members, test.v and test.w. In principle I could copy the piece of code above and just replace test.u by test.v or test.w. Since it is the same code for all members, I would like to avoid this (copying many times the same piece of code) and replace it by a call to function. The question is, how to pass the name of the struct member I am considering to the function ? How can I tell the function, operates on member .u or .v ? Would it be possible to have a generic piece of code
insert
Code:
function (member y,...)
switch (j) {
case 0:
f = test.y + ...;
break;
case 1:
f = X - test.y;
break;
case 2:
f = test.y + 2;
break;
}
where the function could be called with function(u) or function(w) and would replace automatically .y by .u or .w ?