C++ :: Take Values From Text File And Store Them In Variable And Use For Later Calculation

Nov 8, 2013

I have a text file in the form

5502 5202.3
1523 2536.1
1254 1256.2
17846 8956.2 and so on

left one is time and right one is pressure, I need to show the time value as it is but i need to use the pressure value to calculate air speed. I don't know how to use the strings to pick up the list properly. I did the calculation formula for the air speed but i can't pick the pressure value up from the text file. here's what i did:

#include <iostream>
#include <fstream>
#include <string>
using namespace std;

[Code].....

View 3 Replies


ADVERTISEMENT

C Sharp :: Store Values In Variable Permanently Even After Restarting Machine?

Dec 26, 2013

I want to store values permanently in a variable. The same variable should be able to be edited and saved by user, and whatever it is I need the value of the variable from the last time I modified it, like a database. database because i need this to set my connection string of the database.

View 1 Replies View Related

C :: Display Current Time And Date In Program And Use Variable To Store Each Of Values

Feb 16, 2013

i need to display the current time and date in my program and use variable to store each of the time values like

a = 10
b = 29
c = 31

printf(``%d : %d : %d``, a,b,c);

which then give the output as - 10:29:31

How to save the time in variables in C....

i am using C in windows 7 and my complier is Bloodshed Dev C++

View 7 Replies View Related

C/C++ :: How To Store Values From A File To Array

Nov 21, 2014

I'm trying to read values from a file to store them in an array in C++ and then output the values in a table format for everyday of the month: morning, noon, evening and night. My text file looks something like this:

38
210
14
3
214
222
82
176
225
.
.

#include <iostream>
#include <string>
#include <cctype>
#include <fstream>
#include <sstream>
using namespace std;
struct dailyReadings{

[Code] ....

View 1 Replies View Related

C++ :: How To Store Entire Content Of File In Variable

Jan 28, 2013

I would like to store the entire content of a file in a single c-string variable or in a standard string class variable. Is there a function that will do this for me? I am familiar with functions that get one character or one line at a time but I don't think I've encountered a function that gets the entire file. Does this function keep or disregard the end-of-line character? If no such function exists, I would write my own function to create and return such a variable.

View 4 Replies View Related

C :: Read Specific Values From A File And Store Them In Arrays

Apr 14, 2013

What i try to do is to write a code which reads some specific values from a file and stores them in an array. My File looks like this

Code:

XFOIL Version 6.96
Calculated polar for: Myfoil
1 1 Reynolds number fixed Mach number fixed
xtrf = 1.000 (top) 1.000 (bottom)
Mach = 0.000 Re = 0.200 e 6 Ncrit = 4.000
}

[code]...

View 11 Replies View Related

C++ :: Possible To Store A New Line At The Above Of Text File

Feb 9, 2014

I need to store the last 3 deposit that I have in my deposit. I have few option but i dont which would be easy

1.Store all deposit to the text file (store always in a new line), and display the last three deposit from the text file.

dep 1 - 60
dep 2 - 40
dep 3 - 100 print 100
dep 4 - 50 print 50
dep 5 - 50 print 50

2. I think this option is more difficult, when it reach deposit 4, to get rid deposit 1

So when i make a deposit 4, the deposit 1 get's ride
dep 2 - 50
dep 3 - 100
dep 4 - 70

Right now i can only display one deposit (last one), then i close the program and run again and i make another deposit it overwrites a new deposit.

My code.
To show sure my deposit that has been made.
double depSave () {
int option;
float dep1,dep2,dep3;// Declare your variables
dep1 = dep2 = dep3 = 0; // Set them all to 0

system ("cls");
string path = "deposit.txt"; // Storing your filename in a string

[Code] ....

Where is says "save deposit" in comment that where it saves to the deposit text file, that going to be output to the depSave function.

View 2 Replies View Related

C++ :: Open And Store A Value To Text File

Jan 29, 2014

This my deposit function, i want to open the file (balance), then add the sum and store in on the text file.

float deposit( int x, int currentBalance) {
cout<<"
"<<endl;
cout<<"Welcome to the deposit area"<<endl;
cout << "Your new balance is:" << balance <<endl;

[Code] ....

View 13 Replies View Related

C++ :: Reading From File And Store Values Of Each Line In Multiple Variables

May 6, 2013

So I have this text file that I am trying to read from and store the values of each line in multiple variables.

Let's say my text file contains

AXSYZ3482 Tom 100 112

and my code below here works fine when the lines in the text file is separated by spaces.

while (fscanf(fp, "%s %s %d %d
", userID, name, &startLoc, &endLoc) != EOF) {
printf("%s %s %d %d
", userID, name, startLoc, endLoc);
}

But let's say my file was to look like this instead.

AXSYZ3482:Tom:100:112

But if i try this below...

while (fscanf(fp, "%s:%s:%d:%d
", userID, name, &startLoc, &endLoc) != EOF) {
printf("%s %s %d %d
", userID, name, startLoc, endLoc);
}

It seem to store the entire line in userID including the ":". I want to ignore the ":"'s and store everything in between in respective varibles in the order specified above.

So first string in userID, then ignore the :, then second string in name, and ignore the next :, and so forth. How I can accomplish this?

View 2 Replies View Related

C/C++ :: How To Get Audio Input And Store In Text File

Feb 20, 2015

I am trying to get user's voice as an audio input to a c++ program and store it in a text file (.txt)

I have been searching over the web to find some kind of library or something like OpenCV(video library) for while now but nothing seems to be there.

View 2 Replies View Related

C/C++ :: Pointer Values Into Pythagoras Calculation

Mar 31, 2014

I have a doubly linked list, which reads in a set of coordinates x and y.

I need to pass these coordinates into a method called calculateImportance and execute Pythagoras on them. With this in mind I need to be able to access the pointers current, next and prev.

The issue I am having, is that I am unable to pass the pointers through to the method?

This is the list.h

#include <iostream>
class List {
private:
typedef struct node {
int xCoord;
int yCoord;
float importanceFactor;

[Code] .....

View 6 Replies View Related

C :: Take Personality Information From User And Store It In Text File

May 17, 2014

I was trying to make a program in C that could take Personality Information from the user and store it in a text file. Then, when asked, could compare the results to other entries in the so called "data-base" and tell which is the best match. I tried a whole lot but couldn't think of a proper way.

(Stings and File IO are not my strong points)

I am using Code Blocks 10.05 and the standard GCC compiler.

View 6 Replies View Related

C++ :: Read A Text File And Store Contents Into 2D Array?

Aug 2, 2014

read a text file and store the file contents into a 2D array?

100 101 102 103 104 105
106 107 108 109 110 111
112 113 114 115 116 117
118 119 120 121 122 123
124 125 126 127 128 131

Here's my code:

const int ROWS = 5;
const int COLS = 6;
int array[ROWS][COLS];
ifstream inputFile;
inputFile.open("table.txt");

[code]....

When i run the program and try and display the array, it doesn't work.

View 1 Replies View Related

C++ :: Store Contents Of Text File Into Char Array?

Apr 22, 2014

I am trying to store the contents of a text file into a char array. However the function i am using ifstream member function get(); seems to stop working when fed with certain characters. Is there another solution besides the get() function that will accept all types of characters from files?

char text[1000];
for (int i = 0; i <= textlen; ++i)
{
text[i] = text_in.get();
}

View 3 Replies View Related

C/C++ :: How To Read Information From A Text File And Store It Into Arrays

Mar 28, 2014

how I can read information from a text file into an array so afterwards I can display the array and it will show the contents of the text file?

the information inside my text files consist of names and numbers like so: "Collins,Bills 80" should I separate the numbers and names into two separate text files one for names and one for numbers?

My code so far is this:

#include <iostream> //for cin and cout
#include <fstream> //for input/output files
#include <conio.h> //for getch

[Code]....

View 2 Replies View Related

C++ :: How To Take Comments From C File And Store It In Text File

May 16, 2013

C++ code that will take the existing comments from a arbitrary C file, and store those files in a text document?

View 4 Replies View Related

C++ :: State The Values Of Each Int Variables After Calculation Is Performed

May 2, 2013

Question: State the values of each of these int variables after the calculation is performed. Assumed that, when each statement begins executing, all variables have the integer value 5.

a) product *= x++;

b) quotient /= ++x;

What is the answer for a and b?

View 4 Replies View Related

C++ :: Faster To Create New Variable Or Reuse Existing One For Math Calculation?

Feb 15, 2015

is it better to reuse an existing variable or create a new variable for the following situation:

/* Is this faster: */
glm::mat4 newViewModelMatrix = (*existingViewMatrix) * (*existingModelMatrix);
/* Or is this faster? */
glm::mat4 existingViewModelMatrix; /* declared in class header - initial value assigned in class constructor */
existingViewModelMatrix = (*existingViewMatrix) * (*existingModelMatrix);

Just wondering if it makes a difference or not.

View 1 Replies View Related

C++ :: Store A Reference Variable As Member Variable Of Interface Object

May 1, 2013

I am having trouble compiling my interface. I am trying to store a reference variable as a member variable of the interface object. Compiler says that the variable has not be initiated correctly.

LCD inherits from VisualInterface which is expecting a DisplayDriver object to be passed in (DisplayDriver is another interface, but thats not important).

I pass the displayDriver object in when LCD is instantiated in maininterfaces.zip

I was pasing it before as a pointer but was told that this could cause me problems with memory leaks and a reference was better, but now I cant seem to get it to compile.

View 11 Replies View Related

C++ :: Store Function To A Variable And Call It Using That Variable?

Oct 15, 2013

I want to store few different functions to a variable for different structs/classes and then call it later using that variable, is it possible? something like

struct item {
int ID;
int special; // for function
};

item Key;
Key.special = UseKey(KEY_KING);

// now when I want to call function "UseKey(KEY_KING)" I want to use "Key.special", like this

if(iCurrRoom == ROOM_KING)
Key.special;
else if(iCurrRoom == ROOM_DRAGON)
Fireball.special;

View 5 Replies View Related

C++ :: Setting Values Using A Text File?

May 19, 2014

in the following code how would i set a txt file up to where i can have say name = whatever in it and the program will find it and set it to the corresponding global value.

#include <fstream>
#include <iostream>
#include <string>

[Code]....

View 1 Replies View Related

C# :: How To Edit Hex Values Of A Text File

Jan 5, 2015

I have a report that's generated by a piece of software, and (I'm assuming because it was intended for Linux/Unix) when I open to read it in notepad, it has a bunch of funky symbols in it, and incorrect line feed characters instead of returns that windows uses.

I looked at the txt file with a hex editor and can see all the hex codes for the symbols I want deleted. One of the symbols 0A.

How can I do a "find and replace" command but do it with hex codes? These symbols cant be simply placed into my code file because VS does not know how to interpret it.

View 7 Replies View Related

C++ :: Removing NULL Values In Text File

Sep 2, 2013

I have a measuring board that writes a .txt file in the following format:

board number;type;NUL;channel;measured value;date and time
DS207;5000007;NUL;0;20251;11.07.2013 12:30:02 MESZ
DS207;5000007;NUL;1;10159;11.07.2013 12:30:02 MESZ
DS207;5000007;NUL;4;27.18;11.07.2013 12:30:02 MESZ
DS207;5000007;NUL;0;20233;11.07.2013 12:35:02 MESZ
DS207;5000007;NUL;1;10149;11.07.2013 12:35:02 MESZ
DS207;5000007;NUL;4;27.31;11.07.2013 12:35:02 MESZ
DS207;5000007;NUL;0;20256;11.07.2013 12:40:02 MESZ
...

I would like to extract and analyse the data but the data behind the NUL entry is not accessible for me maybe due to the fact that NUL normally marks the end of a line. Is there a method to remove the NUL entries in this text file?

View 12 Replies View Related

C# :: Looping Through Text File And Recalculating Some Values

Jan 20, 2014

I have chosen C# as our language . Students have to enter a name of a recipe, followed by the number of people it will serve, followed by a list of ingredients for a recipe. This, then, needs to be exported to a text file. This bit I am fine with.

They then have to import the file back into C# and recalculate for a new number of people. This is the bit I am struggling with. The calculation is fine, I can do that. The issue is getting it to loop around each column of data to not only perform a calculation (I have just set it up to multiply by an entered value for now). I have set up a text file with the following data in it:

2 grams sugar
350 ml milk
4 tsp lemon
5 tsp vanilla
6 cloves garlic

I want it to come back with, (if multiplied by 2 for example) something like:

4 grams sugar
700 ml milk
8 tsp lemon
10 tsp vanilla
12 cloves garlic

At present, it comes back with

4 grams sugar
4 grams sugar
4 grams sugar
4 grams sugar
4 grams sugar

Code is below.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
namespace ConsoleApplication1{

[Code] .....

View 3 Replies View Related

C++ :: Passing Values From Text File To Integer Array

May 24, 2013

I'm trying to passing values from a text file to an array. The values in txt file is;

0 2 3 5
1 2 5
0 1 3 6
1 3 5

I need to store these values in an array like that

Code:
int array[?][?]={{0,2,3,5},{1,2,5},{0,1,3,6},{1,3,5}};

View 1 Replies View Related

C :: Search Table And Replace Values In Text File

Feb 3, 2015

I have to develop a C program that reads a very complex txt file (output of a calculation code, so full of mixed text and numerical tables), search for a specific table in it and individuate/print or replace a specific value with assigned position in the table.

View 2 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved