C program

EMPS intranet

Hi! Hi! Start program

Try stepping through the code

Value and type of last evaluated expression: Address of array element: Address of array elementx: (none)

Your browser does not support the canvas element which will make some the features unavailable.

If you are using Internet Explorer within the University of Exeter try going to the Settings menu (probably the gear shape at the top right of this page), selecting "Compatibility View settings", unchecking "Display intranet sites in Compatibility View" and reloading this page.

Code

 Header...
 int main(int argc,char *argv[]){

»  if (argc>=0) 
    printf("Welcome to \"%s\"\n", argv0);

»  for ( int i=1;i<argc; ++i) 
    printf("Argument %d: \"%s\"\n", i, argvi);

»  return 0;
}
 ...

Memory

main()
				132	133	134	135
				argv = 588
168	169	170	171
argc = 3

main(): for()
144	145	146	147
i = 1

				588	589	590	591
				argv[0] = 5742
592	593	594	595	596	597	598	599
argv[1] = 5751				argv[2] = 5757
5736	5737	5738	5739	5740	5741	5742	5743
?	?	?	?	?	?	'0'	' '
5744	5745	5746	5747	5748	5749	5750	5751
'C'	'S'	'_'	'A'	'R'	'R'	'A'	'Y'
5752	5753	5754	5755	5756	5757	5758	5759
'_'	'c'	'h'	'a'	'r'	'['	'6'	']'
5760	5761	5762	5763	5764	5765	5766	5767
' '	' '	'4'	'2'	'9'	'3'	'0'	'3'

NB: the actual memory address of each variable is the
address shown plus 4293027448 (0xFFE26678).

Show Advanced options

Show output (Before looking at the output, work out what you think it put should be and see if you are right.)

Output

Welcome to "./myprog"
Argument 1: "hello"
Argument 2: "world"

Validate Link-check

Try stepping through the code

Code

main()

main(): for()

Output