Visual C++ :: How To Read A Wide Character One By One From Txt File

Sep 25, 2012

I am working to make a translating software from an Urdu sentence into Hindi and vice versa, i am using visual c++ 2010 software with c++ language. i have written an Urdu sentence in a text file. now i want to get a single character one by one from that file so that i can work on it to convert it into its equivalent Hindi character. when i use get() function to get a single character from input file and write this single character on output file, i get some unknown ugly looking character placed in output file. My code is as follows

Code:
#include<iostream>
#include<fstream>
#include<cwchar>
#include<cstdlib>
using namespace std;
void main() {
wchar_t arry[50];

[Code] .....

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C++ :: Character Array To Wide String?

Nov 19, 2013

I am still working on my project which will be reading some old data from some old DOS files. The data stored there is naturally, char*. Once I read in my character array, how do I assign this to a wstring since my application is UNICODE?

Here is my current solution:

wchar_t* Class::Function(char *pName) {
//I verify the pointer and such first, then do the below
this->_Name.assign(pName, (pName + strlen(pName));
return this->_Name.c_str();
}

Am I on the right track here?

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C :: Read From Stdin (File) Character By Character

Nov 10, 2013

I have to optimize a code for below scenario. I am reading stdin (a file redirected to stdin) character by character. How many chars are going to come is not known. After every few chars there is a seaparator. e.g $ as below

rhhrkkj$hghjhdf$ddfkrjt

While reading, if the separator arrives I'm processing the string stored before that separator and then continue reading stdin in same fashion, till EOF. I am using getc(stdin) to read chars.

Using gprof I can see most of the program time is spent inside main() , for this reading logic. Rest of the program is just some insert and search operations. I am getting time of 0.01 secs at the moment, want to reduce further.

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C/C++ :: Read Input File Character By Character?

Aug 10, 2012

How do I write an a program that will read an input file character by character?

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C++ :: How To Read TXT File Character By Character

Oct 6, 2013

In my program, I'm supposed to read a text file (the name of which is given to me as a command line paramater, as long with an integer), and display the text in a specific format (each line can only be as long as the integer). However, I'm having trouble even reading the text file. I don't know the syntax. I'm only allowed to edit the function that does the formatting, and the code in that is

void typeset (int maxWidth, istream& documentIn)

I don't know how to 'read' the file, as most examples online are ifstream, or openFile or something like that. What I want to do is just read the first character of the file, and continuously keep reading characters until the end of the file.

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C++ :: Reading Data Character By Character From Text File

Jul 25, 2012

Double values are stored in text file. 23.5 36.8 34.2 ... My teacher told me to read them character by character and then make words, like i have to read "2" "3" "." "5" and now have to make it or treat it as word and then using atoi(). I have to convert it into double. but i dont know how to do this....

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Visual C++ :: Unable To Read LCT File To BMP Image

Nov 20, 2014

I have an *.lct file. I like to read *.lct file and save an bmp image.

I can not read this file using usual file read.

Code:

void CLCTtoBMPDlg::OnBnClickedReadlctfile() {
CFileException CFileEx;
CStdioFile ReadFile;
CString OpenlctfilePath;
TCHAR szFilters[]= _T("LCT Files (*.lct)");
CFileDialog fileDlg(TRUE, _T("bmp"), _T("*.lct"), OFN_FILEMUSTEXIST | OFN_HIDEREADONLY, szFilters);

[Code]...

Find the attachment. change the file extension *.lct instead of *.txt. I like to read ASCII Data into Hex, Example : Data "A" as "41" (Refer the jpeg image). How is possible?

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Visual C++ :: Get Program To Read From File Of 15 Scores?

Dec 10, 2014

I'm trying to get the program to read from a file of 15 scores. 10 are quizzes 5 are exams. I want my program to read from the input file the first name "or" last name and if the user puts a different name, the program Gives off an error screen message

Code:
#include <iostream>
#include <fstream>
#include <string>
#include <cstdlib>
using namespace std;
const int NUM_STUDENTS = 20;
const int NUM_QUIZZES = 10;
const int NUM_EXAMS = 5;

[code]....

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Visual C++ :: Read And Write Values Into File?

Sep 22, 2012

correct the below code:

file already contains entries : 1st row username; 2nd row password.

check status required to write at third line and need to read or alter the check status value.

Currently this code is working if already there is a value for check status, then it is overwriting else UI hanging.

Code:
WriteCheckStatusToFile(BOOL& locVar) {
FILE *l_pFile = NULL;
CString l_strRememberCheck;
l_strRememberCheck = GetExePath() + _T("password");
CString sVar;
sVar.Format(_T("%d"),locVar);

[code]....

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C :: How To Read In A Character Followed By Integer Without Space

Feb 13, 2014

how to carry out the conversions. The assignment is the normal hex to octal and Quart (base 4) via bit munipulation which I have worked out myself. However, I have been trying all day to figure out how to read in a string such as H1234, or O4567. How to parse the input I can handle the remainder myself. I'm just stuck and I've tried for hours.

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C++ :: Why Two Scanf Needed To Read Character

Mar 11, 2012

Below given is the code, which allocates memory for a structure dynamically and stores value in its member. The problem is in the last scanf statement which reads 'ch'. The code will be in infinite loop as it doesnt executes the last scanf statement. The solution for this is (i use this) to add one more similar scanf statement for 'ch' in the very next line. If i do so, it executes the statement, reads 'ch' and then continues.

I want to know why it behaves like that..

struct student{
int usn;
};
int main(){
char ch;
struct student *s;
s=(struct student *)malloc(sizeof(struct student));

[Code] ....

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Visual C++ :: Can't Read In A Text File To Load A Struc

Apr 15, 2013

I am doing an exercise that reads in a text file and loads the data into a struct. My problem is it doesn't read anything from the text file. I think it's the way I'm loading the data. Oh, it does read in the first record that tells the program how many contributor records to create, but nothing after that. Here it is:

Code:
//
#include <iostream>
#include <fstream>
#include <cstdlib>
const int strsize = 30;
const int SIZE = 60;

struct contributions {
char fullname[strsize]; //name
double donation; //donation

[Code] ....

Here is the record input:

Data file:
4
Suz Stuz
55000
Froco Frock
5000
Yandi Yuck
100500
Dippy Dip
120000

9 records - each struct has two members; full name and donation. First record should be number of contributors ...

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Visual C++ :: Read Excel File And Storage In Array

Nov 4, 2014

I wish to read an excel file which contains the table shown at the picture below.

I don't really know how to code the direct storage of the values in the appropriate array.

For example I wish to store the countries in an array of a string type.

could I have some piece of code which illustrates it (I mean the reading of an excel file and the direct storage of his value in an array).

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Visual C++ :: Read A File Which Is 51563 Char Long?

Nov 15, 2014

I'm trying to read a file which is 51563 char long ( a jpeg pic )

but whenever I open it :

Code:
std::ifstream ifs(file);
std::string pub((std::istreambuf_iterator<char>(ifs)), std::istreambuf_iterator<char>());
cout << pub;

I only get like 500 chars, so I tryed a lot of different funcs until I finally realized that they reached the end of file "early" well it thinks that one of the chars in it is an end of file and it's located at the start. So I really don't know what to do with it because every func doesn't see the rest of the file at all.

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Visual C++ :: Error When Trying To Read A Random Word From A File

May 8, 2015

I am currently writing a password generator in Microsoft Visual Studios 2010 Professional. The section I am having a problem with is the practical password. It is suppose to randomly read 3 words from a text file and then display it in the text box. The program will compile and run but when I hit generate I get "True True True" and not three random words. Then this warning shows up:

Warning C4800: 'char *' : forcing value to bool 'true' or 'false' (performance warning)

//Code is from the form1.h file. I can post the rest of the code if need be but I just included my includes and the problematic section

Code:
#pragma once
#include <cstdlib>
#include <ctime>
#include <stdlib.h>
#include <cmath>
#include <iostream>
#include <iomanip>

[Code] ....

Screenshot of the warnings: [URL] .....

Picture of the output: [URL] ....

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Visual C++ :: How Simplicity Read Text File Which Contain One Or Three Values

Oct 21, 2012

Text file can conain one or three integer values in string. How correctly and simplicity read this string?

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C :: Using Scanf To Read A Character From Standard Input

Nov 1, 2013

So running the following code

Code:
#include <stdio.h>
int main(void) {
char c;
int i=1;
while (scanf("%c", &c)==1)
printf("loop sequence %i: %c(%i)

[Code] ......

Done it seems a "carriage return" serves two purposes here, one is to signal the program to read in the character typed in before the "carriage return", another serves as a second character typed, how can i do this cleanly, that is without having to use a "carriage return" as the second character to signal "I've typed in the first character already".

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Visual C++ :: Use For Loop To Read Certain Data From Txt File And Print To Console

Sep 28, 2014

I'm new to programming and i'm trying to do a certain task. I want to use a for loop to read certain data from a txt file and print them to a console. I'm trying to read student names and their grades.

Something like
3 // 3 represents the number of students.
George 97
Sarah 70
Maya 88

The data may vary but it's always in this format.

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C++ :: Wap To Read A Character From User And Test Whether It Is A Vowel Or Constant

Jan 10, 2014

How to do this?

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C :: Read String From Input Then Determine Which Character Is The Largest

Jan 12, 2015

I'm very new to c programming and I have some background in C# and java. I am supposed to read a string from input then determine in that string, which character is the largest, i.e. I think b>e and e>z, e.t.c. If the string is empty I should return ''.

I haven't done any programming in C before and I don't know how to handle strings and characters in C.

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Visual C++ :: Employee Payroll - Read Data From Text File And Sort

Nov 11, 2013

i tring to write a employee payroll code with functions and read data from the txt. file and also bubble sort that sorts and displays starting from employees last name and calculations.

//txt file//
Hours Pay rate empID first name last name
40.0 10.00 A1234 Jane Adams
50.0 10.00 L8765 Mary Lincoln
25.5 10.85 W7654 Martha Washington
52.0 15.75 A9876 John Adams
45.0 25.00 W1235 George Washington
40.25 55.00 L9087 Abraham Lincoln
30.0 9.75 T9876 William Tell
42.5 12.50 M7654 Missy Muffett
30.0 10.00 P8765 Peter Piper

and here is my code

Code:
#include <iostream>
#include <cstdio>
#include <fstream>
#include <string>
#include <iomanip>
using namespace std;
const int SZ = 55;
void tellUser();

[Code] .....

here are the errors the are giving

Code:
payroll.cpp: In function "int bubbleSort()":
payroll.cpp:52:8: error: "lastpos" was not declared in this scope
payroll.cpp:52:18: error: "numemp" was not declared in this scope
payroll.cpp:56:10: error: "swapmade" was not declared in this scope
payroll.cpp:57:16: error: "i" was not declared in this scope

[Code] ....

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C++ :: Read Sentences From User And Change Them Based On Their Character Choices

Sep 10, 2013

I'm trying to get the hang of the declaration and use of char. I'm trying to write a program that reads sentences from the user and changes them based on their character choices, I keep getting load of compiler errors.......am I off to a good start or am I way off?

#include<iostream>
#include<string>
#include<cstring>
#include<cctype>
using namespace std;
int main() {
char *quit*;
char sentance [100];

[Code] ....

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C++ :: Data File Handling Error - Character Strings Not Copied On Text File

Nov 24, 2013

I have this code for a computer project... (store management) but the character strings are not copied on text file..

#include<iostream.h>
#include<conio.h>
#include<fstream.h>
class Store {
public:
char *item_name[5];
store()

[Code] .....

Now when i run the program, it gives a error :::
ERROR
address 0x0

How can i write these strings to the text file?

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C :: Printing Contents Of A File - Prints One Extra Character Not Present In The File

Feb 12, 2013

I'm writing a program that stores records into a file and then these records can be printed out. A last name, first name, and score is stored to be exactly 36 characters long (using leading spaces to pad) making it easier to retrieve specific records. For example, three records stored in the file would like like this: (the underscores are simply to illustrate the distance, they are not in the file itself)

_______lastname_______firstname__90__________lname __________fname_100___________last___________first __60

When printed out, the names are formatted as follows:

lastname, firstname: 90
lname, fname: 100
last, first: 60

However, when I print them out this is what I get:

lastname, firstname: 90
lname, fname: 100$
last, first: 60H

For some reason, for any record after the first, an extra character is added to the end. These characters are not in the file, so I was thinking that the array for some reason wasn't being filled completely, (the array is initialized to size 36 and 36 characters are read from the file using fread) so it was printing out a random character assigned to the 36th array position. Except the character never changes, (always a $ for record 2, H for record 3, l for record 4 if i remember) and I've tried reducing the array size or the number of character read and it's the string that gets altered, the random character always remains. I figure the problem must be in the print_records function (appending seems to work no problem). Anyway here is my print records and appending records code.

Code: /*
- Prints a single record stored in the file pointed to by ifp.
*/
void print_record(FILE *ifp, int record) {

[Code]......

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Visual C++ :: Whether 0xFFFF Is A Valid Unicode Character

Dec 22, 2013

I just wonder whether 0xFFFF is a valid Unicode character.

When I using the following code:

CStringW strTempW;
CString strTemp1;
INT_PTR nLen;
strTempW.Format(L"%c", 0xFFFF);
nLen = strTempW.GetLength();
strTemp1 += strTempW;
nLen = strTemp1.GetLength();

After executing the first codeline strTempW.Format(L"%c", 0xFFFF), I will get strTempW of length 1, but cannot see it first character in Visual Studio watch window.

After executing the codelilne strTemp1 += strTempW, I will get strTemp1 of length 0.

Whether 0xFFFF is taken as a valid Unicode or not?

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Visual C++ :: Character Controller - Getting Error When Adding Pointer

Sep 29, 2012

I was trying to write a character controller but when I went to add my pointer to my character I get error

C2143: syntax error : missing ';' before '*'

I've looked at all my classes involved but I don't see any errors and Visual Studio doesn't report any other specific errors. Is there any way of finding the source of this type of error?

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