C Programming - Input / Output - Discussion
Discussion Forum : Input / Output - General Questions (Q.No. 1)
1.
In a file contains the line "I am a boy\r\n" then on reading this line into the array str using fgets(). What will str contain?
Answer: Option
Explanation:
Declaration: char *fgets(char *s, int n, FILE *stream);
fgets reads characters from stream into the string s. It stops when it reads either n - 1 characters or a newline character, whichever comes first.
Therefore, the string str contain "I am a boy\n\0"
Discussion:
57 comments Page 4 of 6.
Nayna said:
1 decade ago
Can anyone explain me...
Why \r doesn't get read..
and if your ans is that because it is a carraige return.
then why \n gets read..it is also a new line type.
Why \r doesn't get read..
and if your ans is that because it is a carraige return.
then why \n gets read..it is also a new line type.
Sairamteja said:
1 decade ago
The question is good and \r is a carriage return.
NISHANTH SHETTY K said:
1 decade ago
Because it is a carraige return. It does not store in str.
Amaresh said:
2 decades ago
Explain in details the answer.
Sharmi said:
1 decade ago
Thanks sundar. Nice explanation.
Nischal said:
1 decade ago
@Sundar
I didn't get your example.
\r is to move cursor to left most position in the current line
printf("india\rbix");
Here output must be, first it prints india then \r so again cursor is moved to left most position right?
Please help me this doubt.
I didn't get your example.
\r is to move cursor to left most position in the current line
printf("india\rbix");
Here output must be, first it prints india then \r so again cursor is moved to left most position right?
Please help me this doubt.
Nikita said:
1 decade ago
Why in ans there is '\0'.
Jyoti said:
1 decade ago
Nikita, because In C string always ended with null (\0) character.
Kamal dua said:
1 decade ago
This question is on I/O.
In C when we attempt to write a string(which is done using function fputs()).
It converts "\n" into "\r\n".
But while reading using function(which is done using function fgets()). "\r\n" is converted to "\n".
Actually this is a feature of standard library functions.
Hope you guys understand. Have a nice day!
In C when we attempt to write a string(which is done using function fputs()).
It converts "\n" into "\r\n".
But while reading using function(which is done using function fgets()). "\r\n" is converted to "\n".
Actually this is a feature of standard library functions.
Hope you guys understand. Have a nice day!
Varsha said:
1 decade ago
@Sundar
Thank you.
Thank you.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers