TTP`s from C

                         by Darryn Lavery

     In  issue  15  Marc Young asked how to  gain  access  to  the 
information given to .TTP program.I personally do not know how  to 
do this from Assembler but I do know how to do if from C and maybe 
of interest to other readers.This useful feature of C is because C 
was  developed for main frames and to be used with UNIX.To  access 
TTP information from C it is neccessary to set main with two input 
values:-

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

     As  you can probably guess argc is the number of entries  and 
argv the entries or parameters themselves.

     For example if you enter the line on the example prog below

     hello world

     You  would expect argc to be 2 but it is 3 because the  first 
parameter is always CPROG.
     i.e
          argv[0]="CPROG"
          argv[1]="HELLO"
          argv[2]="WORLD"

     So you will always get one more than you put in .I think this 
is a hang-off from UNIX where programs were often run as commands.

     Here is that demo program:-


/**************************************************/
/*A small demo to illustrate the use of passing   */
/*parameters to a TTP program.Make sure that when */
/*compiling and linking this program that the     */
/*resulting program has a TTP extension           */
/*                                                */
/*This program was written using Lattice C 3.04   */
/*Your compiler may not need the void cast        */
/**************************************************/

#include"stdio.h"

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

printf("You typed %d entries\n",argc);
printf("They were...\n\n");
for (loop=0;loop<argc;loop++)
          printf("%s\n",argv[loop]);

getchar();
}