Array separation --- C

Question

This is my code so far:

#include <stdio.h>
#define DIM 100
int main (){

    char rest[DIM];
    scanf ("%s", rest);
    char first;
    first = rest[0];

The input the user will put will either be something like "1 dsdsff e" or "2 dej deer". How can I save the different words in rest that will be separated by " "? And disregard the first number since I've already stored it.

read it using `fgets()` and use `strtok()` to tokenize. – Sourav Ghosh Mar 27 '16 at 18:09 — Sourav Ghosh, Mar 27 '16 at 18:09

score 1 · Answer 1 · answered Mar 27 '16 at 18:18

1

You can use scanf with formatted template

int n;
char rest1[DIM], rest2[DIM];

scanf("%d %s %s", &n, rest1, rest2);

In that case input '42 text1 text2' will gave n == 42, rest1 will contain 'text1' and rest2 will contain 'text2'

answered Mar 27 '16 at 18:18

LibertyPaul

1,139
8
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the thing is that rest1 will be " text1" and I do not want the space at the begining – Aen Mar 27 '16 at 18:28
1

@Aen: `%s` reads a whitespace delimited string, so no spaces will ever be stored in `rest1` or `rest2`. Note that the space before `%s` is irrelevant -- spaces will be skipped regardless. – Chris Dodd Mar 27 '16 at 18:32
@ChrisDodd yeah, you're right. I was doing something wrong. Anyway, this is a good solution except that sometimes the input is simply "1" (which I forgot to mention) – Aen Mar 27 '16 at 18:35
@Aen In case when you dont know actual number of parameters you should read whole string and parse them one-by-one – LibertyPaul Mar 27 '16 at 18:59
@LibertyPaul how? I've tried strtok but since I want to save them it's not working right – Aen Mar 27 '16 at 19:12

score -1 · Answer 2 · edited May 23 '17 at 12:31

-1

You are storing the string in an array that's correct, then you have to split that array by delimiter ' '. Here is the code that might help you.

Split string with delimiters in C

edited May 23 '17 at 12:31

Community

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answered Mar 27 '16 at 18:37

viveksinghggits

661
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This is more a comment than an answer. If you found a duplicate, flag the question. – too honest for this site Mar 27 '16 at 18:46

Array separation --- C

2 Answers2