compiling C

[sixf00t4]

http://www.techimo.com/forum/showthr...313#post613313 there is some C code in there. it wont compile for me in unix. anybody?

[krohnjw]

That's C++ not c, you need to compile with a C++ compiler, ie g++

[squeech]

The problem you're facing is that the C compiler you're using doesn't know the location of iostream.h. This is a header file that give the written program access to the statements like "cin" and "cout".

If you use the C++ compiler instead, you will not have this problem. Just enter g++ instead of gcc:

unixs1$ g++ test.c -o test
unixs1$ test

That should go more smoothly for you

~edit - blast! One minute too slow.

[sixf00t4]

(1) unixs1 $ g++ test.c -o test
test.c: In function `int main()':
test.c:19: name lookup of `a' changed for new ANSI `for' scoping
test.c:11: using obsolete binding at `a'
(2) unixs1 $ test
(3) unixs1 $

ok so it compiled that is one step, now is there some sort of switch of parameter to get the string in there?

[squeech]

The problem your getting now, assuming you copied the code EXACTLY like it was written in the post you linked to, is what's called a scope resolution error. When I retyped in the program to see if I could compile it, I automatically firxed that error out of habit and forgot I did so

#include <iostream.h>

int code[100];
char disp;


main()
{

     for(int a=0; a<=12; a++)
          {
               cout << "enter code \n";
               cin >> code[a];
          }

     cout <<endl<<endl;
//Look here, you'll notice I redeclared "a" as an int
     for(int a=0; a<=12; a++)
          {
	if(code[a]>22)
	{code[a]=code[a]-23;
		disp= code[a] + 64;}
	else{
		disp= code[a] + 68;}

	cout << disp << " ";

cout<<endl;

return 0;
}

The problem that shows up refers to line 19, which is after the comment I added. You'll notice in the code that I compiled, there is another "int" before "a=0". This is because right now, "a" is only scoped in the first "for" loop (located in line 11, which refers to the second line of the error).

So just try adding that "int" in front of a=0 in the second "for" statement (line 19)

[ILC]

Once the syntax errors are cleared, type:

cxx filename.cpp
a.out

This will compile the program using a unix c++ compiler, and than execute the program.

ILC