Get the whole input of a string in C

Question

#include
char option[64],line[256];

main()

{

printf(">>")
(fgets(line, sizeof(line), stdin)) {
            if (1 == sscanf(line, "%s", option)) {
            }
    }
print(option)
}

will only get the first word, for example

/>>hello world

would output

/>>hello

This is expected. From `man scanf`: `%s] - Matches a sequence of non-white-space characters ... The input string stops at white space`. — Tim Cooper, May 04 '13 at 17:10
Look at this [post](http://stackoverflow.com/questions/1247989/how-do-you-allow-spaces-to-be-entered-using-scanf) — ibi0tux, May 04 '13 at 17:11

score 0 · Answer 1 · answered May 04 '13 at 17:12

0

In sscanf(..., "%s" ...

The scan terminates at whitespace, if you want to print entire line you just have to:

printf("%s", line)

answered May 04 '13 at 17:12

David Ranieri

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BLUEPIXY · Accepted Answer · 2013-05-04T17:19:03.523

0

#include <stdio.h>

int main(){
    char option[64],line[256];

    printf(">>");
    if(fgets(line, sizeof(line), stdin)) {
        if (1 == sscanf(line, "%[^\n]%*c", option)) {//[^\n] isn't newline chars
             printf("%s\n", option);
        }
    }
    return 0;
}

edited May 04 '13 at 17:19

answered May 04 '13 at 17:13

BLUEPIXY

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I don’t know the intention. – BLUEPIXY May 04 '13 at 17:30

score 0 · Answer 3 · answered May 04 '13 at 17:15

0

You can use a format in scanf that allows you to match whitespaces. Look at @BLUEPIXY good anwser.

Alternatively, you can use getline(). More info here.

answered May 04 '13 at 17:15

ibi0tux

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I read somewhere that getline() does not limit the input buffer and is can be overflowed, not sure if my method could but I stayed away from it – user2341069 May 04 '13 at 17:20

score 0 · Answer 4 · answered May 04 '13 at 17:15

0

You can try the following code snippet :

char dump, string[40];
printf("Enter the sentece with spaces:\n");
scanf ("%[^\n]", string);
scanf("%c", &dump);
printf ("You entered: %s", string);

getchar();
getchar();

answered May 04 '13 at 17:15

Fuat Coşkun

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Get the whole input of a string in C

4 Answers4