cout Questions
2
Solved
Can anyone explain the output of the following program:
#include <iostream>
using namespace std;
int main()
{
int test = 0;
cout << "First character " << '1' << endl;
c...
Mornay asked 3/5, 2015 at 20:11
8
Solved
I noticed if I print out a long string(char*) using cout it seems to print 1 character at a time to the screen in Windows 7, Vista, and Linux(using putty) using Visual C++ 2008 on Windows and G++ o...
Gamba asked 15/11, 2009 at 1:28
5
Solved
I've been moving back and forth with Java/C++ so I messed up with my console output and accidentally wrote lines like:
cout << "num" + numSamples << endl;
cout << "max" + maxSamp...
3
char p;
cout << &p;
This does not print the address of character p. It prints some characters. Why?
char p;
char *q;
q = &p;
cout << q;
Even this does not. Why?
2
Solved
Some background:
I have a c++ program that is multithreaded using pthreads. The program is a hotel reservation system, with 10 guests (each their own thread), a check-in desk (1 thread) and a chec...
Tsunami asked 16/11, 2014 at 19:20
2
Good day,
I wrote a Java program that starts multiple C++ written programs using the Process object and Runtime.exec() function calls. The C++ programs use cout and cin for their input and output....
6
Solved
I'm creating my own logging utility for my project, I want to create a function like iostream's std::cout, to log to a file and print to the console as well.
Here's what i want:
enum
{
debug, er...
5
I want to create a logger class such that with a functionality like this:
Logger log;
log << "Error: " << value << "seen" << endl;
This should print me a custom formatted...
Bedard asked 10/2, 2010 at 9:9
1
Solved
I've got a project that creates a console application, as part of a larger solution, however it won't display anything on the console. I've checked that /SUBSYSTEM:CONSOLE is set for both debug and...
Nairn asked 11/12, 2014 at 16:47
2
Every time I do 'cout << endl' or even 'cout << "\n"' and then launch my program under Windows to output to a file ("a.exe < test.in > result.out") I get "\r\n" line endings in "resu...
5
Solved
I just came across this question which is about how to be able to print an object via
std::cout << x << std::endl;
As I understood, the standard way to accomplish this is to overload...
Gyroplane asked 3/12, 2014 at 10:36
2
Solved
I just want to format a string and an integer value with right justify.
There is no problem to do this without leading space before the integer value.
bytes.....................123981
total byte...
Kaceykachina asked 16/11, 2014 at 16:53
5
Solved
Just reading an old but interesting article by "Scott Meyers"
http://aristeia.com/Papers/C++ReportColumns/novdec95.pdf
Basically it is about preferring to use '\n' over std::endl (which I agree ...
5
Solved
I can't figure out why this isn't working...
I am working in Linux.
g++ doesn't do anything.
gcc prints the following:
/tmp/ccyg7NDd.o: In function `main':
test.cc:(.text+0x14): undefined ref...
3
I'm developing a c++ program that is dealing with addresses for different variables and functions.
When I compiled my program on a Linux based OS, all functions including the main get the address o...
Geezer asked 28/8, 2014 at 0:1
4
Solved
I need to:
Set precision so that floats are rounded to the hundredths place ( 0.111 prints as 0.11 )
Clip trailing zeros ( 1.0 prints as 1 )
Never print an exponent ( 1000.1 prints as 1000.1 )
...
Selmore asked 20/8, 2014 at 11:38
11
Solved
I am writing a program that uses prints a hex dump of its input. However, I'm running into problems when newlines, tabs, etc are passed in and destroying my output formatting.
How can I use printf...
Betimes asked 3/7, 2009 at 15:2
6
Solved
I'd like to overload << operator to write the value it takes to a file and cout. I have tried to do it with following code, but couldn't succeed it. It just writes the value to text file. Any...
Necktie asked 25/6, 2014 at 16:13
2
I want to print a large message in c++ using cout.
example:
cout<<"Camera could not be opened in the requested access mode, because another
application (possibly on another host) is using ...
2
Solved
I am printing progress of many iterations of a computation and the output is actually the slowest part of it, but only if I use Visual C++ compiler, MinGW works fine on the same system.
Consider f...
Beforetime asked 25/3, 2014 at 11:48
3
Solved
How do I make
std::cout << 123456789.12
print this:
123456789.12
It always prints this:
1.23457e+008
I know that I have to play with the flags, but I cant quite figure out the right...
1
Solved
I know endl or calling flush() will flush it. I also know that when you call cin after cout, it flushes too. And also when the program exit. Are there other situations that cout flushes?
I just wr...
2
Solved
I have code such as the following:
std::cout << "Beginning computations..."; // output 1
computations();
std::cout << " done!\n"; // output 2
The problem, however, is that often outp...
3
Solved
Say I have a dword I want to output in hex with std::cout and left-pad with zeros, so 0xabcd will be shown as 0x0000abcd. It seems like you would have to do this:
uint32_t my_int = 0xabcd;
...
5
Solved
Latelly I've been working with multi-thread coding, after a while writing I realized that if I used std::cout in different boost::threads, the output would came without a logical order, the program...
Arequipa asked 17/2, 2012 at 16:51
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