@programminginc - страница 2906

#include <iostream> #include <fstream> #include <string> using namespace std; int main() { fstream myobj("myfile.txt"); string mystring; while (myobj) { getline(myobj, mystring); cout << mystring << endl; } }

AHMED

The output is empty

AHMED

But I have created a word document called myfile.txt and wrote some words in it.

Anonymous

But I have created a word document called myfile.txt and wrote some words in it.

Lol

Anonymous

Your word document is myfile.txt.docx

AHMED

Your word document is myfile.txt.docx

I figured that , but the same empty output.

Anonymous

I figured that , but the same empty output.

You can't open word documents like this lol

Anonymous

Word is a complex file format It's not just text inside There's a lot of going on in a word file

Anonymous

If you need to read this, use special libraries But with your language knowledge it'll be a hard task

AHMED

#include<iostream> #include<fstream> #include<string> using namespace std; int main (){ fstream myobj1{"myfile.txt", std::ios::out}; myobj1<<"My first line.\n"; myobj1<<"My second line.\n"; myobj1<<"My third line.\n"; fstream myobj2{"myfile.txt"}; string s; while(myobj2){ getline(myobj2, s); cout<<s<<endl; } }

AHMED

This also yielded an empty output.

AHMED

Ok . I figured the solution

AHMED

Closing the file before trying to read it will solve the problem

JR

Hi, I'm implementing the mean square method in my homework. It consists of squaring a number, for example, 2152, which yields 4631104; the length of the number is 7, but must be 8, thus we add a 0 on the left, that yields 04631104, then we extract the middle number (Not the digits), which is 6311, then we square that number and so on. My question: Is there a way to add a 0 in case the number's length is 7, 6, 5, etc. and then get the middle number? I reckon I could use the modulo operator, but I'm not sure.

Sandro

Hi, I'm implementing the mean square method in my homework. It consists of squaring a number, for example, 2152, which yields 4631104; the length of the number is 7, but must be 8, thus we add a 0 on the left, that yields 04631104, then we extract the middle number (Not the digits), which is 6311, then we square that number and so on. My question: Is there a way to add a 0 in case the number's length is 7, 6, 5, etc. and then get the middle number? I reckon I could use the modulo operator, but I'm not sure.

The simplest way is to use strings, you have to convert the numbers in a string with sprintf() manage it (get the middle number) and than convert again in a digit... And so on

JR

Thanks, that's what I'm currently doing.

MRT

try mscv

fixed, thank

Vlad

@254

/sorry

H

fixed, thank

not fixed , just removed problem when you going to create that code cross platform(like gcc in linux ...) this error occure again . be careful if you cant use c++ as its feature(like portable programs) , then use c# or anything like that is easier than cpp ...

Park-Kim

Anyone has karaoke module for karaoke project ?

Park-Kim

Especially about the dual display😬

MRT

not fixed , just removed problem when you going to create that code cross platform(like gcc in linux ...) this error occure again . be careful if you cant use c++ as its feature(like portable programs) , then use c# or anything like that is easier than cpp ...

No, if I give any problem I try to fix this, u can use c# :-)

H

No, if I give any problem I try to fix this, u can use c# :-)

lol but you chnged compiler and said: fixed.

MRT

lol but you chnged compiler and said: fixed.