int main (int ac, char **av)

Question

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What does int argc, char *argv[] mean?

int main (int ac, char **av)
{
  /* functions*/
}

What are meant by ac and av here?

FYI: Traditionally, these parameters are called `argc` and `argv`. — R. Martinho Fernandes, Jan 31 '11 at 14:32

score 8 · Answer 1 · answered Jan 31 '11 at 14:32

ac is **argument count.

av should be char **av and it's an array of string pointers containing command line arguments.

So, if you invoke your program like this:

$ ./prog 1 2 3

ac will have a value of 4 and av will be something like:

av[0] -> "prog"
av[1] -> "1"
av[2] -> "2"
av[3] -> "3"

score 3 · Answer 2 · answered Jan 31 '11 at 14:32

3

ac is a number of parameters passed to the program.

char ** av is an array of arguments.

answered Jan 31 '11 at 14:32

Vladimir Ivanov

score 1 · Answer 3 · answered Jan 31 '11 at 14:32

1

attribute count and attribute value

answered Jan 31 '11 at 14:32

Nikolaus Gradwohl

3 Answers3