cout Questions
16
I have been coding in C++ for a long time. I always wondered which has a faster execution speed printf or cout?
Situation: I am designing an application in C++ and I have certain constraints such ...
18
11
I want to do:
int a = 255;
cout << a;
and have it show FF in the output, how would I do this?
11
Solved
What do I have to do so that when I
string s = ".";
If I do
cout << s * 2;
Will it be the same as
cout << "..";
?
Lavabo asked 7/8, 2012 at 9:44
11
Solved
I am trying to print a Russian "ф" (U+0444 CYRILLIC SMALL LETTER EF) character, which is given a code of decimal 1092. Using C++, how can I print out this character? I would have thought ...
9
Solved
I wrote a simple program that sets a value to a variable and then prints it, but it is not working as expected. My program has only two lines of code:
uint8_t a = 5;
cout << "value is &...
Tardigrade asked 24/10, 2013 at 9:30
33
Solved
How do I print out the contents of a std::vector to the screen?
A solution that implements the following operator<< would be nice as well:
template<container C, class T, String delim = &q...
33
Solved
How do I print out the contents of a std::vector to the screen?
A solution that implements the following operator<< would be nice as well:
template<container C, class T, String delim = &q...
6
I am working on below code:
#include<iostream>
#include<stdio.h>
using namespace std;
main() {
unsigned char a;
a=1;
printf("%d", a);
cout<<a;
}
It is printing 1 and some...
Misesteem asked 23/3, 2013 at 9:38
9
Solved
double x = 1500;
for(int k = 0; k<10 ; k++){
double t = 0;
for(int i=0; i<12; i++){
t += x * 0.0675;
x += x * 0.0675;
}
cout<<"Bas ana: "<<x<<"\tSon fai...
Breaker asked 6/3, 2011 at 17:13
12
Solved
I'm using Qt4 and C++ for making some programs in computer graphics. I need to be able to print some variables in my console at run-time, not debugging, but cout doesn't seem to work even if I add ...
6
Solved
I saw this question already on this forum but I do not know why the proposed answer does not work in my case. So I try to ask for other slution.
I just got my Qt creator running under Linux.
I do n...
4
Solved
I have difficulties in understanding the sequence of calls in the code below.
I was expecting to see the output below
A1B2
While I can see that the output I get is
BA12
I thought that the c...
Flight asked 11/2, 2013 at 10:11
5
Solved
I am using a fold expression to print elements in a variadic pack, but how do I get a space in between each element?
Currently the output is "1 234", the desired output is "1 2 3 4"
template<t...
Trotskyism asked 11/7, 2018 at 9:23
16
Solved
In my earlier question I was printing a double using cout that got rounded when I wasn't expecting it. How can I make cout print a double using full precision?
Koosis asked 16/2, 2009 at 18:15
0
#include <bits/stdc++.h>
using namespace std;
int f(int x)
{
int n;
if(x>0)
{
if(x%2==0)
{
cout<<x%10;
n=1+f(x/10);
}
else
{
n=1+f(x/10);
cout<<x%10;
}
return n;
...
6
Solved
Shall this be the example:
#include <iostream>
using namespace std;
int main()
{
cout << "Hola, moondo.\n";
}
It throws the error:
gcc -c main.cpp gcc -o edit main.o main.o...
4
Solved
Im trying to print a string to console in c++ console application.
void Divisibility::print(int number, bool divisible)
{
if(divisible == true)
{
cout << number << " is divisible by...
4
I am looking for an example that differentiates between cerr and cout in C++?
When do I need to use cerr?
Drosophila asked 4/10, 2014 at 9:28
2
I want to cout a table like output using c++. It should look like this
Passes in Stock : Student Adult
-------------------------------
Spadina 100 200
Bathurst 200 300
Keele 100 100
Bay 200 200
...
7
Is there a way to align text when printing using std::cout? I'm using tabs, but when the words are too big they won't be aligned anymore.
Sales Report for September 15, 2010
Artist Title Price Gen...
Hearing asked 21/3, 2010 at 4:43
2
Solved
Is there a way to print the value of a constexpr or #defined value at compile time? I want the equivalent of std::cout <<, or some way to do something like
constexpr int PI_INT = 4;
static_a...
Fiesole asked 20/11, 2012 at 1:34
2
Solved
I want to truncate a string in a cout,
string word = "Very long word";
int i = 1;
cout << word << " " << i;
I want to have as an output of the string a maximu...
Reconstructive asked 25/10, 2013 at 4:2
6
Solved
Is there a more straight-forward way to do this?
for_each(v_Numbers.begin(), v_Numbers.end(), bind1st(operator<<, cout));
Without an explicit for loop, if possible.
EDIT:
How to do this f...
6
Solved
So, I have this question. Why does cout throws
error C2065: 'cout' : undeclared identifier
I am using Visual Studio 2012 as an IDE and I am writing a school project. I have everything done exce...
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