Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!lll-winken!uunet!jarthur!jshortle
From: jshortle@jarthur.Claremont.EDU (John Shortle)
Newsgroups: comp.sys.amiga
Subject: C/AmigaDos Problem
Message-ID: <905@jarthur.Claremont.EDU>
Date: 20 Apr 89 15:34:25 GMT
Reply-To: jshortle@jarthur.UUCP (John Shortle)
Organization: Harvey Mudd College, Claremont, CA
Lines: 40

I have written a simple command-line reverse polish notation calculator in C.
If you want to compute (3 - 4 / 7), for example, you type, 'num 3 4 7 / -'.
It works fine unless you end the command with a plus (+) character.  You
must hit return twice, and the program doesn't recognize the plus character
as part of the statement.  I wrote a short program to test this oddity.

test.c (compiled with Manx 3.6a):
---
#include <stdio.h>

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

{
  int i;
  printf("%d\n", argc);
  for (i = 0; i < argc; i++)
    printf("%s,", argv[i]);
  printf("\n");
}
----

Here are some sample input and output:

>test a -
3
test,a,-,
>test a + (must hit return twice before anything happens)

2
test,a,
>test a +++++ (hit return twice)

3
test,a,++++, (note that one of the plusses is missing)
---
Does anyone know what causes this and/or how to fix it?

Thanks.