C++ having cin read a return character
Hey everyone, I was wondering how to use cin so that if the user does not enter in any value and just pushes ENTER that cin will recognize this as valid input. Thanks in advance, Tomek ...
cin
How can I compile a Labview CIN in Visual Studio? [RESOLVED]
I am trying to compile a labview CIN using visual studio 2003. I have followed the tutorial located here to the letter, but am getting the following error: Project : error PRJ0019: A tool returned an error code from "Performing Custom Build Step" Does anyone know what is causing this? I tried this link found at an expert's exchange qu...
How do I flush the cin buffer?
How do I clear the cin buffer in C++? ...
Are labview CINs old fashioned?
I am writing an application using labview and need to use external code. I have read that using CINs are old fashioned and 'wrong' to use. Is this correct? Should I use shared dlls instead? What are the advantages/disadvantages of both methods? ...
Why is this cin reading jammed?
Hi, I've singled out a failure on my program that prevents me from assigning a value to the variable addAntonymAnswer1. I've tried running cin.clear() before the statement to get the thing read my yes/no answer, but the code just won't respond. The program bit that's failing is located inside void dictionaryMenu(vector <WordInfo> &word...
What are the rules of the std::cin object in C++?
I am writing a small program for my personal use to practice learning C++ and for its functionality, an MLA citation generator (I'm writing a large paper with tens of citations). For lack of a better way to do it (I don't understand classes or using other .cpp files inside your main, so don't bother telling me, I'll work on that when I...
C++ Press Enter to Continue
This doesn't work: string temp; cout << "Press Enter to Continue"; cin >> temp; ...
Changing C++ cin
When you enter a space ' ' while typing into cin, it will take the first string before the space as the first value and the later one as the next. So let's say we have this code: cout << "Enter your Name"; cin >> name; cout << "Enter your age"; cin >> age; Now, let's say a user enters "John Bill". It would take his name to be John ...
What is a 'Stream', relating to cin and cout?
Hi, I'm new to C++. A tutorial is talking about cin and cout: "Syntactically these streams are not used as functions: instead, data are written to streams or read from them using the operators <<, called the insertion operator and >>, called the extraction operator." What is a 'stream'? ...
Using cin in QtCreator
Hello, For school, we use C++ as the language of choice. I am currently using QtCreator as an IDE, and for its GUI library, it is wonderful. The school is using Visual Studio. However, most of the programs we are writing make use of cin and cout for input/output. cout works fine as output, as you can see what it puts out in the applica...
C++ cin Question...
Okay, I was writing a simple C++ function to combine cin'd strings. I'm working on Linux at the moment, so I don't have the luxury of a simple "getline(cin, input)" command. Here's the code so far: string getLine() { string dummy; string retvalue; do { cin << dummy; retvalue ...
How to read cin with whitespace up until a newline character?
I wish to read from cin in C++ from the current position up until a newline character into a string. The characters to be read may include spaces. My first pass fails because it stops on the first space: string result; cin >> result; If cin is given: (cd /my/dir; doSometing)\n The variable result only gets: (cd I would think ...
Infinite loop on EOF in C++
This code works as desired for the most part, which is to prompt the user for a single character, perform the associated action, prompt the user to press return, and repeat. However, when I enter ^D (EOF) at the prompt, an infinite loop occurs. I am clearing the error state via std::cin.clear() and calling std::cin.ignore(...) to clear...
How do I declare a string without assigning a value in C++?
I know that for an integer, you can use: int value; I tried: string str; but Visual C++ gave me an error. How do I declare it without assigning a value, then using cin >> str later on to assign it? ...
C++ cout cin string manipulation
I'm trying to get a line as input from the command line. My problem is that I'm not getting the whole line, but it's being tokenized by space. So if I entered something such as "I like Math a lot" instead of getting "you enterend: I like Math a lot" I get the follwoing: EDITING MODE: Enter a command i like Math a lot you entered i ...
C++ STD Cin error in while loop
Why when I entered the loop below and I type something the first instruction cmdstd:getline(std::cin,cmdInput); does not read the input entered. For instance if I entered "b 8" it should display "cmd is b 8", but it skips to the next read std::getline(std::cin, input); and displays "it is b" instead while (editingMode == TRUE) { std...
How do I modify the internal buffer of std::cin
Hello, I am writing a software that grabs a password using std::cin However unlikely, i am trying to avoid the possibility that the password get paged to the disk from memory so I want to modify the buffer of std::cin to overwrite the password as soon as I'm done with it. right now i have this: std::cin.clear(); std::stringstream ss;...
C++ cin.fail() question
When running the following code and enter a number, it works fine. But when entering a letter, the program enters an infinite loop, displaying "Enter a number (0 to exit): cin failed." My intent was to handle the cin fail case and prompt the user again. int number; do{ cout << "Enter a number (0 to exit): "; cin >> number; ...
outputting to cin from a worker thread (c++)
Hi, My program has a main thread that takes command input from a user. Separately, it has potentially multiplie (at least 1) worker threads churning data in the background. The user is able to terminate the program using a command by typing into the console. However, when the data churning is done, the main thread is still blocking wa...
Getting input from user using cin
I am using Turbo C++ 3.0 Compiler While using the following code .. char *Name; cin >> Name; cout << Name; When I gave input with space ... its only saving characters typed before space .. like if I gave input "QWERT YUIOP" ... Name will contain "QWERT"; Any explaination why ?? ...