Malloc - unlimited input from user Post: 302776779

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Homework and Emergencies Homework & Coursework Questions Malloc - unlimited input from user Post 302776779 by Joshuarodriguez on Wednesday 6th of March 2013 10:12:05 PM

03-06-2013

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Malloc - unlimited input from user

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1. The problem statement, all variables and given/known data:

I'm trying to get an unlimited input of words with an unlimited number characters from the user using
malloc and pointer to pointer then printing the inputs if only the user inputted the word "end". Even if the user
presses enter, the program should still ask input until there is no "end" inputted.
Can you please help me, I don't know if I'm doing right.

2. Relevant commands, code, scripts, algorithms:

Code:

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

int main () {

    char** pointer = malloc(sizeof(char**) * 5000);
    fgets(pointer, 5000, stdin);
    if (strncmp(pointer, "end", 5000) == 0) {
        puts(pointer);
        puts("\n");
    }
    return 0;
}

3. The attempts at a solution (include all code and scripts):

4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):

AcSat QC Philippines, Mr. Jules Morcilla , CS13

Note: Without school/professor/course information, you will be banned if you post here! You must complete the entire template (not just parts of it).

Last edited by Scrutinizer; 03-07-2013 at 06:09 AM.. Reason: code tags

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LEARN ABOUT SUNOS

mktemp

mktemp(3C)						   Standard C Library Functions 						mktemp(3C)

NAME

       mktemp - make a unique file name  from a template

SYNOPSIS

       #include <stdlib.h>

       char *mktemp(char *template);

DESCRIPTION

       The  mktemp() function replaces the contents of the string pointed to by template with a unique file name, and returns template. The string
       in template should look like a file name with six trailing 'X's; mktemp() will replace the 'X's with a character string that can be used to
       create a unique file name. Only 26 unique file names per thread can be created for each unique template.

RETURN VALUES

       The mktemp() function returns the pointer template. If a unique name cannot be created, template points to a null string.

ERRORS

       No errors are defined.

EXAMPLES

       Example 1: Generate a filename.

       The  following example replaces the contents of the "template" string with a 10-character filename beginning with the characters "file" and
       returns a pointer to the "template" string that contains the new filename.

       #include <stdlib.h>
       ...
       char *template = "/tmp/fileXXXXXX";
       char *ptr;
       ptr = mktemp(template);

USAGE

       Between the time a pathname is created and the file opened, it is possible for some other process to create a file with the same name.  The
       mkstemp(3C) function avoids this problem and is preferred over this function.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mkstemp(3C), tmpfile(3C), tmpnam(3C), attributes(5), standards(5)

SunOS 5.10							    15 Sep 2004 							mktemp(3C)