Thread: array problem

Originally Posted by elwad

srry electricity was out my problem that i dont understand that getline function i understand some stuff but genrally i dont get its idea and K&R is a really great book i have just started c programming and it taught me alot of stuff.

the getline() function takes a line with as much as 999 characters in it and the condition is that as oon as u press EOF the line will be finished and also if '\n' is pressed the line will be changed and the last character of the lin ewill be '\n'.

Originally Posted by BEN10

the getline() function takes a line with as much as 999 characters in it and the condition is that as oon as u press EOF the line will be finished and also if '\n' is pressed the line will be changed and the last character of the lin ewill be '\n'.

so in getline function s[i] = c it cr8tes the string but this check

Code:

 if 
(
c == '\n') {s[i] = c;
++i;

} why did he do this coz a string doesnt contain \n ?also in main

Code:

while ((len = getline(line, MAXLINE)) > 0)

i thought EOF is -1 not bigger than zero ?

Originally Posted by elwad

so in getline function s[i] = c it cr8tes the string but this check

Code:

 if 
(
c == '\n') {s[i] = c;
++i;

} why did he do this coz a string doesnt contain \n ?also in main

Code:

while ((len = getline(line, MAXLINE)) > 0)

i thought EOF is -1 not bigger than zero ?

if u press "ENTER" the line will be changed so the last character pressed is '\n' so the loop breaks and the last character pressed is '\n' which is give by if(c=='\n').
also len is the length of the the characters inputted by the user which will always be >=0.if the first character inputted is itself EOF then also len=0 not -1 coz -1 is the value of EOF, it doesn't give u the length of the line.