Strings as input parameters to colsole apps

[nhoellei]

I have a program that prompts a user for a string and then depending on the size of the string outputs varients of the inputted string with added or missing characters.

i.e.

int main() {

char cText[100];
cout << &quot;Enter the Text: &quot;;
cin >> cText; ( cText would be ABC )
// process cText to output
// sABCdef

I want to be able to setup the program to use strings passed as input parameters as well as prompting the user:

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

int iStrCount = 0;

if(argc != 1) {
char cText[100];
cout << &quot;Enter the Text: &quot;;
cin >> cText; ( cText = ABC )
//Process cText
//output sABCdef
}
else
// process argv[]
// it outputs sABC**********def
// not actually the * char, but the a strange buffer character
}

What is happening is when I process argv[], I get the string as well as the buffer. Is there a way ( I'm sure there is ) to trim the &quot;¡§d&quot; within argv[] ?

(I have a feeling it's because I'm not defining an initial size to argv[].)

Is there a different way to do this?

Regards.

 

[palbano]

>> (I have a feeling it's because I'm not defining an initial size to argv[].)

Nope. That's not it.

> Is there a different way to do this?

Sure but you didn't post the way you are doing it. Your processing of the argv array needs some work.

-pete

 

[nhoellei]

Do I need to process argv into a pre-defined char array? Would something like this work?

cText = substr(0,strlen(argv));

or

for(int j = 0;j < strlen(argv); j++)
{
cText[j] = argv[j];
}

I keep getting invalid cast compile errors if I try these.

 

[palbano]

for(int j = 0;j < [red]argc[/red]; j++)
{
cText[j] = argv[j]; [red]// error[/red]
}

However since &quot;argv&quot; and &quot;cText&quot; are different types you will recieve a compile error. You are not understanding your pointers yet. Keep at it. It takes most people a little time before they start to get pointers.

-pete