Run g++ on mac

[kaiwei]

I wrote a simple code as follows and saved it as 1.cpp

#include<iostream>
using namespace std;
int main()
{
cout<<"Hello, world!"<<endl;
return 0;
}

Then I input g++ 1.cpp in my mac terminal, then nothing happens. However if I changed the code above a little (for example, get rid of a ;), then it complains.

Does anyone know how to let it show "Hello, world!"?

Many thanks ahead!

[DonkiestOfKongs]

Odds are, if nothing was displayed after running the command, it just worked. Look for a file in that directory called 'a.out,' this is your compiled output file; run it by typing './a.out'

To name the output file, you would type
g++ sourcefile.cpp -o outputfile

[kaiwei]

Thanks very much!