Scanning an entry by scanf does not walk in the string beyond the white space

Question

I’m trying to make a program that reads a sentence and then capitalizes every initial of every word, if not already. The problem is that I type in a sentence but it only returns the first word, nothing else. the word is with the first letter capitalized but the other words of the sentence do not appear in the output.

#include<stdio.h>
#include<ctype.h>
char namechange( char abc[], int size);
int main()
{
    int i,n;
    char name[100000];
    scanf("%s", &name);

    namechange( name, n );

}


char namechange( char abc[], int size)
{
    int i, k = 0;
    for ( i = 0; abc[i] != '\0'; i ++)
    {
        int a,b;
        a = abc[i];
        b = abc[i - 1];
        if (i == 0 || 'b' == 8)
           abc[i] = toupper (abc[i]);
    }
    while ( abc[k] != '\0')
    {
        printf("%c", abc[k]);
        k = k + 1;
    }

    }

Answer 1

This code makes no sense and does not compile. The main problem is that the scanf() interprets spaces inappropriately, so you need to ask him to format them properly. In fact anything other than simple exercises should not be used scanf().

#include<stdio.h>
#include<ctype.h>

void namechange(char abc[]) {
    for (int i = 0; abc[i] != '\0'; i++) {
        if (i == 0 || abc[i - 1] == ' ') abc[i] = toupper(abc[i]);
    }
    printf("%s", abc);
}

int main() {
    char name[1000];
    scanf("%[^\n]s", name);
    namechange(name);
}

Behold working in the ideone. And in the repl it.. Also put on the Github for future reference.