This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
How to stop GDB from executing “break main” by default in Eclipse?
I decided to learn C++ (because Java isn't as good at certain things) so I wrote a (VERY) simple program.
#include <iostream>
using namespace std;
int main() {
cout << "This is a test" << endl;
int test = 100;
cout << test << endl;
return 0;
}
It worked as expected, but Eclipse seems to be adding an automatic breakpoint at the main method:
How can I stop this automatic breakpoint insertion?
There's an option in the debug configuration that allows you to Stop on startup at (or simillar), which is enabled by default. Disable it.
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This question already has answers here:
Function call missing argument list warning
(2 answers)
Closed 2 years ago.
I'm learning C++ online and working with Visual Studio Community 2019 (version 16.7.2). Sometimes it displays errors or weird results despite using the exact same code as the one the tutor used. Take the code below for instance. It should print out to the console but it doesn't. Instead, it shows an empty console when I run it on my end. What could be the problem? The teacher is also using Visual Studio on a Windows machine.
#include <iostream>
using namespace std;
void printSomething();
int main()
{
printSomething;
return 0;
}
void printSomething()
{
cout << "Hey! Over here." << endl;
}
Because you are only "mentioning" it here printSomething;.
To actually call it try the appropriate operator () as in printSomething();.
Closed. This question needs debugging details. It is not currently accepting answers.
Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.
Closed 2 years ago.
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The following code is not working in DEV C++:
#include <iostream>
using namespace std;
void main()
{
cout << "Hello world";
}
How can I do this?
Also, tell me if I can get almost all the functionality of Turbo C++ in Dev C++. Also, tell me if I can easily switch to DEV C++ if I know a moderate amount in Turbo C++. I just want to use C++ with Python 3.x for console applications including GUI.
From what I see in your initial question (printf works while ostream doesn't) the problem may be in buffering. Try that:
std::cout << "Hello world" << std::endl;
or, if you wish to avoid a newline:
std::cout << "Hello world";
std::cout.flush();
There is a difference between streams and printf: the streams are not outputing the data immediately but buffer that to optimize the performance. This however means that in some environments for the small outputs like yours it may stuck forever waiting for more output.
#include <iostream>
using namespace std;
int main ()
{
cout << "Hello world";
return 0;
}
I used int main instead of void main.
This question already has answers here:
MinGW 4.8.1 C++11 thread support
(2 answers)
Closed 7 years ago.
I have a problem including the thread library. The following code:
#include <string>
#include <iostream>
#include <thread>
using namespace std;
//The function we want to make the thread run.
void task1(string msg)
{
cout << "task1 says: " << msg;
}
int main()
{
// Constructs the new thread and runs it. Does not block execution.
thread t1(task1, "Hello");
//Makes the main thread wait for the new thread to finish execution, therefore blocks its own execution.
t1.join();
}
Produces these errors:
The code is taken from the answer to another stackoverflow question. I am fairly new to codeblocks and C++ so please explain to me what I am doing wrong.
You probably have not set proper flags for compiler (so that it uses c++11). Way of doing it in codeblocks
This question already has answers here:
What are the rules about using an underscore in a C++ identifier?
(5 answers)
Closed 7 years ago.
I tried to define a global array, named _end, of size ~1000 in C/C++, but I got a segmentation fault even when I simply iterated it. Is the name "_end" very special in C/C++ that causes such problem? Or this can be a very serious bug... (The code is attached below, and it breaks in g++ 4.3.2, 4.5.2, 4.9.2, etc.)
#include <iostream>
using namespace std;
int _end[1111];
int main() {
for (int i=0; i<1111; i++) {
cout << i << endl;
_end[i]++;
}
return 0;
}
You can see the result at https://ideone.com/XAcUeZ.
See here also for the C compiler.
Names which start with an underscore (or two) are reserved for the compiler. This is official C++ standard. Use at own risk.
So I am a novice C++ programmer, and have never coded anything on MacOS. Currently I am using Xcode 6 Beta 3 and I am getting an unusable variable error whenever I want to name a variable to an integer.
my setup looks like this
#include <iostream>
using namespace std;
int main ()
{
int a;
cout << "Hello World!" << endl;
return 0;
}
I am getting a warning sign beside the int a; saying that it is an unusable variable. Why is that?
Also because that is such a novice question perhaps you could direct me to some solid Xcode 6 tutorials that would teach me how to code in the command line.