How can i code a program so i can use switches?

i used the amount of arguments first but that get really annoying when you wanna build in more options

as you may know, functions can have parameters e.g.:
void myFunction(int someNUmber).
so can your main function. it goes like this:


argc is the number of given arguments, and argv is an array of all the arguments.
note: the app's .exe itself is always the first argument or program switch.
if u have myapp.exe /p
then argv[1] (note that array indexers begin with 0) is "/p"
and argc is 2

i'm pretty sure that there is no other way.

cheers
usch

[QUOTE]main(int argc, char *argv[0])[CODE] when you do it like that you only pass the first argument to the main function, and you can't use the others... I think.

You should do:[QUOTE]main(int argc, char *argv[])[CODE].

(I can't test it now, because I have no compiler installed)

usch i already used that one but i dont know how to put it that the switches can be random.

so

that is can be either

exe.exe -p 00 -n name or exe.exe -n name -p 00

then u have to check the argv[1]
e.g

if ( strcmp(argv[1],"-install") == 0 )
{
///your code
}

at linux there is getopt() on windows u have to do this hardcoded


edit:
omg 3 minutes posted after he said "random"

now i understand what he really want

but if i want to have 10 switches for example i would have to do ten times

if ( strcmp(argv[1],"-install") == 0 )

with every option right?

yeah you have to do that.
for(x=0;x<argc;x++)
...

usch

#include <windows.h>
#include <stdio.h>
void main(int argc, char* argv[])
{
unsigned int i=0;
for (i=0;i<argc;i++)
{
if ( strcmp(argv[i],"-p") == 0 )
{
printf("port:%s\n",argv[i+1]);
///your code
}
else
if ( strcmp(argv[i],"-i") == 0 )
{
printf("ip:%s\n",argv[i+1]);
}
}
}


/*output

C:\Dokumente und Einstellungen\nina\Desktop\foo\Debug>2.exe -p 22 -i 127.0.0.1
port:22
ip:127.0.0.1

C:\Dokumente und Einstellungen\nina\Desktop\foo\Debug>2.exe -i 127.0.0.1 -p 23
ip:127.0.0.1
port:23



/*


edit: that was my first try jsut to show it can be done

just play around with it

getopt is easier
http://rootr.net/man/man/getopt/3

thanks ninar12 i didnt really try that but it seems to work fine thanks.


And [_-ViCiOuS-_] what im looking for in windows and not unix but i still appriciate the help thanks

getopt works in windows too...

indeed, moreover source code for windows getopt() can be found in the msdn library of vc6.