Difference between revisions of "Hello World in C"
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Latest revision as of 19:20, 20 June 2007
Hello World is the typical minimum-function program that prints a message
and exits successfully. This is an example written in C.
#include <stdio.h>
int main(int argc, char *argv[])
{
printf("Hello, world!");
exit(0);
}
The first line imports function declarations including printf(). The next
line starts the definition of the main() function, which is called when
your program is run. The curly braces enclose the contents of the main()
function. The printf() call does the actual printing. The exit(0); line
exits main() successfully. It could have just as easily have said
return 0;, but the intent of exit() is more clear.
