some file help

[andrix10]

hey i wanted to ask how can i calculate how many characters there is in the first word of a sentence, which is read from a file
something like:

while(word[i]!=' ')
{
      i++
}

word being a char array

[ui uiho]

while(!isspace(word[i++]))

i is the length of the 1st word;
remember to include ctype.h