C++ :: Using Outfile To Write Name?

Sep 4, 2013

I am trying to display my name using outfile vs. cout and I get errors I don't know how to fix. Here is the code:

//This program will calculate the monthly payment, the total amount paid back over the entire life of the loan,
// and the total interest paid over the life of the loan.
#include <iostream>
#include <fstream>
#include <iomanip>
using namespace std;
int main() {
ofstream outfile;

[code]....

And here are my errors:

1>z:csci207program1practice.cpp(13): error C2297: '<<' : illegal, right operand has type 'const char [16]'
1>z:csci207program1practice.cpp(13): warning C4552: '<<' : operator has no effect; expected operator with side-effect

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C++ :: Console App - Outfile Results

Aug 5, 2013

I have created a game that functions correctly, however, for balancing and future changes, I would like to record results .txt document (its 1v1 btw). I already have code to determine who won and what I am looking for is some way to keep track of different match-ups for the different characters. Im looking for something like this:

loser
Winner char1 char2 char3
char1 3 2 5
char2 2 5 4
char3 8 1 2

the numbers are the amounts of wins a given character has over another character. I'm looking for code to open the .txt file and add 1 to the respective win total so I can do balance changes and such.

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C :: Displaying Integer Check Sum In Text Outfile

Jul 30, 2013

How to get a txt Outfile to display a Checksum.

Code:

ChecksumFileDisplay = fopen(ChecksumFileDisplayPath, "r");
fprintf(ChecksumFileDisplay, BigEndianChecksum);

That's what I have but it doesn't like the fprintf function because BigEndianChecksum is an unsigned int and it wants a pointer to a const char. Is there a function similar to this that will display an 8 digit integer in a txt outfile?

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C++ :: How To Transfer Selected Values From InFile Into OutFile

Jul 8, 2014

My assignment asks me to read inputs from a certain file which has data as shown below:

else if (menu == 3) {
ofstream outFile("output.txt");

Shares share1 = shareList.get(0);
double price1 = share1.getTradePrice();
time24 time1 = share1.getT();

[Code] ....

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C :: How To Write COS / TAN / SIN

Jul 25, 2013

I know I need <math.h> and I know how to write tan(10) or whatever I need. However I need angles, like 100 / tan10 = 567.13. The 10 is degrees.

I am doing a fun project now that I feel more confident. However my textbook only shows me how to use the math library and only shows a few trig functions.

I am applying Trigonometric Functions to see if a car is speeding.

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C :: How To Get Program To Write Itself

Aug 27, 2013

For instance Code: int counter;
counter =0;
FILE *pfile;
pfile= fopen("g:myprog.txt" "w");
while (counter >100)
{ fprintf (case counter{something})}; how do I do this?

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C/C++ :: Write BST To File

Nov 12, 2014

I can only write one value to file:

get all, say for example barcode
char* bst:: get_bar(hwareItem*& root){
while(root!=NULL){
get_bar(root->left);

[Code]...

gets only one value depending on traversal orderI wish to get all values of BST

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C# :: Write Five And Convert To Int

Jun 10, 2014

i'm using TryParse to convert 5 in string to 5 int but i want to give the possibility to the user to write five not 5.

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C# :: Write WPF With Textbox

Mar 28, 2015

I was following a c# book to write a WPF with a textbox. When the textbox is selected(got focus) with keyboard or mouse, it will select all text in it. I followed the book and wrote this:

private void TextBox1_GotFocus(object sender, RoutedEventArgs e) {
TextBox1.SelectAll();
} private void TextBox1_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e) {
var control = sender as TextBox;

[Code] ....

The book said having "e.Handled = true" is to stop the event in order to prevent the cursor being positioned on somewhere of the text instead of selecting all text. From my understanding, "e.Handled = true" is for stopping routed events. Is this means that something will run if "e.Handled = true" is not there? If yes, then what is it?

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C/C++ :: Using Write In A For Loop?

Sep 23, 2014

i am having some trouble with a piece of code im writing for class.

here is my code

for (j=7; j>=0; --j){
putchar((name[i] IF_STATEMENT);
write(1, " ", 1);

I am trying to use write to format my output so that it looks like this

0 0 0 0 0 0 0 0

The formatting works fine when i use printf("%s", " "); in place of write but for some reason when i use write the format comes out like this

00000000

I dont understand why this is happening. Does write always work outside of a for loop or something?

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C/C++ :: Why Write Return 0 At The End

Jan 22, 2013

#include <iostream.h>
#include <conio.h>
int main ()
{
cout << "Hello World";
getch();
return 0;
}  

In the above code, why is it necessary to write getch() and return 0? What is their purpose?

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C++ :: Write In Log File Through DLL

Apr 26, 2013

so i have this dll with a DBTProc, whenever a window gets created i want to write something in a log file. Now everytime I run it it adds three times the text in this log file, but then it does nothing anymore. I do hear a beep everytime a window get created so it doesn't actually open my file to write in

code:
LRESULT CALLBACK CBTProc(int code, WPARAM wParam, LPARAM lParam)
{
if (code < 0)
{

[Code].....

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C++ :: Write A Calculator Using Two Stacks

Apr 13, 2014

I just started by defining a stack class (stackDouble). I need to write a program that accepts an infix calculator expression, with the following operators (**, exponentiation, /, division, and, -, subtraction. The operator precedence is exponent, division, and subtraction.I need to use a stack of doubles and a stack of strings, of which I can write two classes, or write a single stack template. The user will input the expression just via cin, and there will be a # before every number, a ! before each operator, and a . at the end of the expression. '#', '!', or '.' can be input into a char variable, numbers into a double variable and operators into a string variable.

For example, the following would output 6:

# 3 ! / # 2 ! / # .5 ! ** # 2 .

As stated above, I already made up a stackDouble class. What would I need to do to create the other class (I don't think I want to do it with a template)?

Code:
#include <iostream>
#include <string>
using namespace std;
class stackDouble{

[code]....

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C :: Read / Write To File

Mar 3, 2013

How can I erase the data stored in /tmp/a.txt after every run of this code?

Code:

#include <stdio.h> // IO operations
#include <unistd.h> //for pid, ppid, fork functions
#include <sys/types.h> //for pid_t type, kill function
#include <stdlib.h> //for exit function
#include <signal.h> //for kill function
#include <sys/types.h>
#include <sys/stat.h>

[Code]...

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C :: How To Write Powers Without Using Math

Sep 22, 2014

How would one write 3^i without using .math? (i being numbers 0-9)

More specifically, this is what I have:

Code:

#include <stdio.h>
#include <stdlib.h>
int main(void) {
int x, n, answer1, first;
x = 3;
n = 10;
first = 1;

[Code]....

And this is what I want it to produce:

1 0 1.0
3 1 0.333333343
9 2 0.111111112
27 3 0.037037037
81 4 0.012345679
243 5 0.004115226
729 6 0.001371742
2187 7 0.000457247
6561 8 0.000152416
19683 9 0.000050805

I believe I am only having troubles with the first column,

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C :: How To Write Scanf With Right Parameters

Jun 30, 2013

How can i upgrade my program I want to input a octal and binary number and convert them in base 2, 8, 10, 16..

how can I write the scanf with the right parameter in it??

Code:
scanf ("%x",&i); Code: #include<stdio.h>
#include<conio.h>
#include<stdlib.h>
int main() {
int i;
char buffer [33];

[Code] .....

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C :: Write A Program That Would Open A PDF?

May 10, 2013

I have a batch of .pdf files (~1000) with names 001.pdf 002.pdf ...etc. Still pretty new to C, but would it be possible to write a program that would open a PDF, prompt a new name from user, and when entered, close the .pdf and open the next one in the list?

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C :: Data Read And Write

Dec 22, 2013

My program needs to receive data continuously from one process and the received data is read continuously by another process.But when I am trying to create a pipe using mknod on fat32 file system in linux , it throws an error saying "mknod: operation not permitted".

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C :: Write Algorithm Using Stack

Jul 22, 2014

write an algorithm using stack to determine if an input of string is in the form xCy where y is the reverse of x.x and y are strings of A and B. eg : AABACABAA

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C :: Write To Screen Lowest N

Oct 31, 2013

My problem is :

Code: numbers[10]={25,27,17,19,47,3,98,5,124,10};

You write a program at do below processes for above array.

You want a number 1 between 10 at user.

if user enter N value,program write to screen lowest N. number at array. For example user enter 2,program write to screen lowest secondary number of 5 value at array or user enter 10 value,program write to screen maximum number of 124 value at array.

But write the program with don't use sorting algorithm.

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C++ :: How To Write A Step Reader

Aug 14, 2013

I need to develop a tool to compare geometric structure of point cloud from scanned objects with their CAD model. The CAD model is stored in step file. So how could I extract geometric information from step file? I am totally new for CAD.

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C++ :: Write To External File In GCC

Jan 16, 2013

I am trying to write to external file in GCC. So far I can get to this:

#include <iostream>;
#include <fstream.h>;
using namespace std;
int stream (int argc, char* const argv[]) {
ifstream in ("mcp.strings");

[Code] ....

I need to know if I am using the correct method to choose file name. And how to set a script(double) variable to print input text or choose an on/off (0|1) input to be written to a text file.

Any links to flags (i.e. pointers and how to use them).

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C++ ::  How To Write A Default Constructor

Sep 27, 2013

How do you write a default constructor?I need to use a default constructor that will initialize the data members:
- salesPerson to “Unknown”
- noOfWeek to 13
- amount to point to an array of thirteen 0.00s.

This is my weeklysales class

class WeeklySales {
char* salesPerson;
double* amount; // Pointer to an array
int noOfWeek; // Size of the array
};

Here's my attempted code:

//default constructor
WeeklySales (){
salesPerson="Unknown";
noOfWeek = 13;
amount = 0.00;
}

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C++ :: How To Write A Bootable Program

Apr 21, 2013

I want to write a bootable c/c++ Hello World. How can i do that?

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C++ :: How To Write A Data Loop

Feb 14, 2013

I need to write a data input for one of my class assignment. Would this be considered a data loop?

while (cin >> number)

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C++ :: How To Write Graphics Pipeline

Nov 25, 2014

I have been learning Direct3D for a while now (DX11), and I ran into a bit of a dead end. I have Frank Luna's book on D3D programming, but I feel like I could find a better tutorial out there. I am at the point of writing the vertex shader (the first one he goes over)

Currently, I am using .fx files to write the shaders. Is that right?

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