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C compiler help (beginner question)
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Hi, this is the first time that I've used C. Anyway, I downloaded a C compiler (dev-C++), and I typed in this:
#include <stdio.h>
main()
{
printf("Hello, world!\n");
return 0;
}
When I run the program, it doesn't print the "Hello, world!", but I just see a dos window quickly flash on my screen. What (and where) should I add to this code to prevent this?
#include <stdio.h>
main()
{
printf("Hello, world!\n");
return 0;
}
When I run the program, it doesn't print the "Hello, world!", but I just see a dos window quickly flash on my screen. What (and where) should I add to this code to prevent this?
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Join Date: Feb 2002
Posts: 12,040
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Solved Threads: 125
First of all, change your main() line to be int main()
The problem that you are having is that the program opens, does what it's supposed to do, and then closes. At the end of the program, right above the return 0 line, try entering:
char x;
cin >> x;
What that will do is prompt for a character to be input right before the program closes. Therefore, the program won't automatically close until it gets user input.
The problem that you are having is that the program opens, does what it's supposed to do, and then closes. At the end of the program, right above the return 0 line, try entering:
char x;
cin >> x;
What that will do is prompt for a character to be input right before the program closes. Therefore, the program won't automatically close until it gets user input.
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Join Date: Apr 2004
Posts: 4,348
Reputation:
Solved Threads: 237
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Originally Posted by Moo The Cow
When I run the program, it doesn't print the "Hello, world!", but I just see a dos window quickly flash on my screen. What (and where) should I add to this code to prevent this?
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Originally Posted by cscgal
First of all, change your main() line to be int main()
At the end of the program, right above the return 0 line, try entering:
char x;
cin >> x;
What that will do is prompt for a character to be input right before the program closes. Therefore, the program won't automatically close until it gets user input.
. When I tried typing in "cin >> x;", I got an error saying that 'cin' is undeclared.Dave's suggestion to look into the FAQ didn't work either. The faq says to type
system("PAUSE");
before the return 0 line, but I get an error that says:
implicit declaration of function `int printf(...)'
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Join Date: Apr 2004
Posts: 4,348
Reputation:
Solved Threads: 237
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Originally Posted by Moo The Cow
I tried the char x; suggestion, but it still doesn't work
Dave's suggestion to look into the FAQ didn't work either. The faq says to type
system("PAUSE");
before the return 0 line, but I get an error that says:
implicit declaration of function `int printf(...)'
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Originally Posted by Dave Sinkula
Uh, try reading it again and note the differences from what you have.
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Join Date: Oct 2004
Posts: 4,009
Reputation:
Solved Threads: 929
Since you are writing a C program use getchar() to wait.
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