Thread: Help of C "Hopefully I will get nice Communication from some Admins"

I think your definition of "prompting" encompasses two things, and would therefore require two steps:

(1) Sending output to the user
(2) Receiving input from the user

Your original "printf()" took care of #1, so I would leave that in.
Afterwards, you want to put a command to look for a user input.

So right after that, you use the "fgets()" function. (it's almost the same declaration as "gets()", but much safer.) This will get a string from the user.

For the "fgets()", you want to look at the declaration of the function so you know what data to pass to it.

>> char *fgets(char *s, int size, FILE *stream);

You pass the address of the string in question to the "get string" function, and it returns the users input to the appropriate array.

You also have to include the maximum number of the array ("int size" is a limit to the expected characters, so the input buffer doesn't overflow) and the stream (stdin).

Can you verify if I can write the first line to show the name like this:
gets(name[30]);
printf("Enter name: ",name);
scanf("%s",people[i].name);

He did not give any further notices about safer_gets..Gets and puts I usethem without any explanation about the use or anything in the lecture..this class gets more harder

Originally Posted by kitymarine

He did not give any further notices about safer_gets..Gets and puts I usethem without any explanation about the use or anything in the lecture..this class gets more harder

I don't see any immediate "safer_gets()" references in a quick search. Do you have any specific header files exclusively for your course? (The professors at my old college wrote their own header files for graphical interfaces, so we could plot the values of circuit elements in 'C').

Well, regardless of which function you need, you don't quite have the concept yet. You're getting close, though. Want to try to follow through with a more common function? "fgets()". You can apply what you learned tonight to a "safer_gets()" if you ever come across one.

#1: You want to ask the user for input, let them know it's their turn to act. (printf())
#2: When the program tells them this, *that* is when it's time to listen. (fgets())

You have the output part fine.

Now you just have to write the part that gets the users input. I gave you the declaration of "fgets()" in the last reply, so you have single clear command to use.

Code:

char *fgets(char *s, int size, FILE *stream);

Now go through each argument, one by one, and give the required information.

"char *s" is a pointer to a string. Put a pointer to the first string in that location (hint: the name of an array without the []'s points to the first location of that array).

"int size" is the number of characters you expect (30, in this case).

"FILE *stream" is the stream you're reading from; "stdin", the keyboard, in this case.

Sorry if I'm being a little indirect here, but I want to make sure you learn - and help show everyone else here how much you learn. (You're doing great, by the way!)

Thank you Matticus ,I will work more on the code and I will get back to you guys..you really helped to clear up some points I appreciate it!

Originally Posted by kitymarine

I dont know why the admin closed my thread but it is a polite way of communication..Secondly Instead of jumping and accuse me of dumping my assignment I was out of connection yesterday and I could not post my code...For better communication I hope from the Oe Called Salem to be more formal until he will know what people are posting..and this is my tag

First off Salem is one of the fairest moderators I've worked with. If you have specific questions ask them... post code snippets when possible...

Code:

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#define nmax 10


typedef struct Person    <-- typedefs go above main
  { char name[30];
    char adresse[30];
    char city[30];
    char state[30];
    int zip;
    int age;
    char gender; };  

int main(void)   <--- this is the correct form
  {
    struct Person people[nmax];
    int i;

    for(i=0;i<nmax;i++)
      { printf("Enter the information for the person number : %d\n ",i+1);
        printf("Enter name: ");
        scanf("%29s",people[i].name);
        printf("Enter street adresse : ");     <-- that is a prompt so stop
        scanf("%29s",people[i].adresse);           fussing over it.
        printf("Enter city : ");
        scanf("%29s",people[i].city);
        printf("Enter state : ");
        scanf("%29s",people[i].state);      <-- string size limits prevent
        printf("Enter zip code : ");            buffer overflows
        scanf("%d",&people[i].zip);
        printf("Enter age : ");
        scanf("%d",&people[i].age);
        printf("Enter gender(M or F) : ");
        scanf("%s",&people[i].gender);
        printf("\n\n"); }

system("PAUSE");
  return 0; }    <-- always return a value

@Common Tater: "Nothing in life is fair or perfect that's why there is human beings and forgiveness" as an answer about Salem..Back to my question...Im tryint to involve the "gets" and the output should prompt after entering consistent numbers

Originally Posted by kitymarine

...Im tryint to involve the "gets" and the output should prompt after entering consistent numbers

Can you be a little more specific? Show us what you're working with.

Originally Posted by kitymarine

@Common Tater: "Nothing in life is fair or perfect that's why there is human beings and forgiveness" as an answer about Salem..Back to my question...Im tryint to involve the "gets" and the output should prompt after entering consistent numbers

Why would you use gets... it's prone to buffer overflows and is generally frowned upon by C programmers. There are far better ways of doing this... fgets() is one, scanf() is another...

I don't know what you mean by "prompt after entering consistent numbers"... If you mean it should give you some sort of printout, that's best done with printf().

Matticus try to take a look about the assignment and the output..Try to read the question of the professor I got confused about how many informations of persons he wants me to enter and I need to use the puts so by the end I will get this output from his example:
The information you entered is:

Minnie Mouse
100 Disney Drive
Orlando, FL 99990
She is 25 years old.

Big Bird
10 Sesame Street
Funtown, MA 01222
He is 20 years old.

Using puts() is not your answer... because of the way you are formatting the text, you're best bet is printf().

puts() is used primarily for diagnostic printing, during the debug phase of a program. It prints only strings and always adds a newline (\n) at the end, so it's pretty much useless for formatted output like you're showing us.

@CommonTater: Okay Guys ..Let's focus on One Line and try to help to correct it properly..I want to know IF shall use Gets for each line to print whatever needed ..for example how can I make up this line with gets instead of printf andscanf Like I used:"Enter zip code: 99990" and how can I use th puts to get the following output at the end of the code:
The information you entered is:

Minnie Mouse
100 Disney Drive
Orlando, FL 99990
She is 25 years old.