Help: stdin to multi-dimensional array Post: 302507518

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Top Forums UNIX for Dummies Questions & Answers Help: stdin to multi-dimensional array Post 302507518 by royalibrahim on Thursday 24th of March 2011 05:50:19 AM

03-24-2011

Registered User

Quote:

Originally Posted by unt_engn

I cant get out of this while loop at the beginning of my program. Just reading from stdin one char at a time and storing it into a multi-array. Need to fix it with in two hours.

Code:

#include <sys/wait.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include <string.h>

int main(int argc, char* argv[]){
char character;
char temp;
int i = 0;
int c = 0;
int j = 1;
int y = 0;
char line[20][20];
int count=0;

printf("Please enter your exec file and its arguments and pres ENTER.\n");        

do{
    temp = getchar();
            
        if(temp == ' '){
            line[count][i] = '\0';
            i = 0;    
            count++;
      }
            else{
                 line[count][i] = temp;    
                 i++;
                        
            }    
                          printf("%c", line[count][i-1]);            
    }while(temp != '\0');

change the line "char temp;" to "int temp;", this is because EOF value is '-1' and getchar() returns an unsigned int constant.

royalibrahim

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LEARN ABOUT V7

ustrtok

ustrtok(3alleg4)						  Allegro manual						  ustrtok(3alleg4)

NAME

       ustrtok - Retrieves tokens from a string. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       char *ustrtok(char *s, const char *set);

DESCRIPTION

       This  function  retrieves  tokens  from	`s'  which  are  delimited by characters from `set'. To initiate the search, pass the string to be
       searched as `s'.  For the remaining tokens, pass NULL instead. Warning: Since ustrtok alters the string it is parsing,  you  should  always
       copy  the  string  to  a temporary buffer before parsing it. Also, this function is not re-entrant (ie. you cannot parse two strings at the
       same time). Example:

	  char *word;
	  char string[]="some-words with dashes";
	  char *temp = ustrdup(string);
	  word = ustrtok(temp, " -");
	  while (word) {
	     allegro_message("Found `%s'
", word);
	     word = ustrtok(NULL, " -");
	  }
	  free(temp);

RETURN VALUE

       Returns a pointer to the token, or NULL if no more are found.

SEE ALSO

       uconvert(3alleg4), ustrchr(3alleg4), ustrrchr(3alleg4), ustrstr(3alleg4), ustrpbrk(3alleg4), ustrtok_r(3alleg4),  allegro_message(3alleg4),
       ustrncpy(3alleg4), exgui(3alleg4)

Allegro 							   version 4.4.2						  ustrtok(3alleg4)