Reading input from command line C++, instead of sscanf

Not Easy

Hey,

Last semester we studied C Programming and now we are studying C++.

We are doing a program that compares two files, the two files are specified on the command line, I completed this program fine with C.

In C Programming, I was able to read the file names in with sscanf using the following code:

int main(int argc, char *argv[])
{
  char fname1[20], fname2[20];

 //scan the second argument entered by the user, store it in fname1

 sscanf(argv[1], "%19s", fname1); 
 sscanf(argv[2], "%19s", fname2); // scan third argument(other file)

}

I am not sure how best to implement the above step in C++, looking online there are some suggestions of using stringstream..but I can`t figure it out.

Any ideas you may have would be a great help.. Thanks

srsly78

Use cin.

http://www.cplusplus.com/reference/iostream/cin/

You can still use the stuff the you are used to from C (like scanf and printf etc), but it's better to do things the C++ way.

Not Easy

srsly78 wrote: »

Use cin.

http://www.cplusplus.com/reference/iostream/cin/

You can still use the stuff the you are used to from C (like scanf and printf etc), but it's better to do things the C++ way.

That didnt work for me...but thanks..

What seems to have worked is:

#include <sstream>

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

stringstream str(argv[1]);
stringstream str2(argv[2]);

str >> fname1;
str2 >> fname2;

}