No Output / Program Does Not Run

[Sam]

Hi

I am a new user to C++. My simple Hello world program does not output anything
in the command window:

// my first program in C++

include <iostream></iostream>

using namespace std;

int main ()

{

cout << "Hello World!";

system("Pause");

return 0;

}

Compile Log:
Compiler: Default compiler
Executing g++.exe...
g++.exe "C:\Progs\first.cpp" -o "C:\Progs\first.exe" -pg -g3 -mwindows -I"C
:\Dev-Cpp\lib\gcc\mingw32\3.4.2\include" -I"C:\Dev-
Cpp\include\c++\3.4.2\backward" -I"C:\Dev-Cpp\include\c++\3.4.2\mingw32" -I"C
:\Dev-Cpp\include\c++\3.4.2" -I"C:\Dev-Cpp\include" -L"C:\Dev-Cpp\lib" -lgmon
-pg -g3 -mwindows
Execution terminated
Compilation successful

Can you advise me on why there is no Hello World! output in the command window
please?

[Sam]

The directive #include is for the iostream file but this does not paste
properly on the forum.

[Wayne Keen]

Thanks you for posting your log! Thwe answer is right there.

-mwindows

This indicates that you have told the compiler to compile Windows
(GUI) code, but the code you are working with is console code. This will cause
a console program to fail to output results.

Wayne

[cpns]

The directive #include is for the iostream file but this does not paste
properly on the forum.

Sigh.

Note:

1. The row of buttons above the post composition box;
2. The link below the box;
3. The WYSIWYG "Preview" box below that.

This is what you could have have had:

// my first program in C++

include <iostream></iostream>

using namespace std;

int main ()
{
cout << "Hello World!";
system("Pause");
return 0;
}

Build log:

Compile Log:
Compiler: Default compiler
Executing g++.exe... g++.exe "C:\Progs\first.cpp" -o "C:\Progs\first.exe" -pg
-g3 -mwindows
-I"C:\Dev-Cpp\lib\gcc\mingw32\3.4.2\include" -I"C:\Dev-Cpp\include\c++\3.4.2\backward" -I"C
:\Dev-Cpp\include\c++\3.4.2\mingw32" -I"C:\Dev-Cpp\include\c++\3.4.2" -I"C
:\Dev-Cpp\include
" -L"C:\Dev-Cpp\lib" -lgmon -pg -g3 -mwindows
Execution terminated
Compilation successful

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