playing around with c

test.c

#include <stdio.h>

char* listen();
int process();
int strcmp();
int output();

int main() {
  char *str;
  while (strcmp(str,"bye\n") != 0){
    str=listen();
    process(str);
  }
  return 0;
}

char str [1024];
char* listen(){
  char *p; p=str; /* initialize pointer */
  /* this increments the pointer after doing getc
     then compares to see if it is a newline char: */
  while((*p++=(getc(stdin)))!='\n');
  *p=0; /* make sure it knows where to end the string */
  return str;
}

int process(char *str){
  output(str);
  return 0;
}

int output(char *str){
  char *p; p=str; /* initialize pointer */
  while((putc(*p++,stdout))!=0);
  return 0;
}