argc/v question?

here is my partial code:

Code:

---

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

        // make sure that there is at least 1 argument
        if (argc < 2) {
                usage();
        }

        switch (*argc[0])
        {
                case "-i":
                        myFunction(argc[0]);

---

i get many errors. i am trying to input the arguments as strings, and use the arguments in myFunction that i am calling within the switch, any helpful hints?

Quote:

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i get many errors

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Maybe you should tell us what they are.

I can tell you that one error definitely comes from

Code:

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case "-i":

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You can't use string literals in case statements. To compare strings, you have to use the strcmp() function.

Oh, and

Code:

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switch (*argc[0])

---

is very wrong. Look at what variable you are using here.

Code:

---

int main(int argc, char *argv[])
{
        // make sure that there is at least 1 argument
        if (argc < 2) {
                usage();
        }
        if (*argv[0] == "-i") {
                i();
        }
        else if (*argv[0] == "-h") {
                h(*argv[2]);
        }
        else if (*argv[0] == "-r") {
                r();
        }
        else {
                usage();
        }

        return 0;
}

---

here are my warnings (were errors, switched to if, versus switch:

test.c(7) : warning C4047: '==' : 'int ' differs in levels of indirection from 'char [3]'
test.c(10) : warning C4047: '==' : 'int ' differs in levels of indirection from 'char [3]'
test.c(11) : warning C4047: 'function' : 'char *' differs in levels of indirection from 'char '
test.c(11) : warning C4024: 'portScan' : different types for formal and actual parameter 1
test.c(13) : warning C4047: '==' : 'int ' differs in levels of indirection from 'char [3]'

I think this is what you are trying to do:

Code:

---

int main(int argc, char *argv[])
{
        // make sure that there is at least 1 argument
        if (argc < 2) {
                usage();
                return 0;  // quit the program
        }
        if (!strcmp(argv[1],"-i")) { // Check if the first argument is equal to -i
                i();
        }
        else if (!strcmp(argv[1],"-h")) {
                h(argv[2]);
        }
        else if (!strcmp(argv[1],"-r"))  {
                r();
        }
        else {
                usage();
                return 0;
        }

        return 0;
}

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Note that you are misunderstanding the arguments. Let's say your program was run like the fillowing:
myprogram.exe -h hello

Now here is what your arguments look like:
argv[0] = "myprogram.exe"
argv[1] = "-h"
argv[2] = "hello"

In order to see if a string is equal to something, you cannot use ==, you need to use strcmp() like in my example.

And what happens when I do this:
myprogram.exe -i -h hello -r

Doesn't windows have an equivalent of getoptlong?

Quote:

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Doesn't windows have an equivalent of getoptlong?

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Nothing standard, but there are people out there that have programmed the equivalent. codeproject has a couple examples.