Thread: Question on the book "C Programming Language" by K&R

Hi guys,
I have just began the K&R book but i have trouble testing my code because it seems to me that the examples in the book assumes that when "getchar" is used, a char is fetched from a file.. though when i run the same code i manually have to type a string then hit enter to make that string get fetched by my code..

This poses a problem since many exercises use EOF to detect the end of available chars to get fetched and there is no way i can do that..

Anyway, i browsed through the previous pages to see if i missed something but could not come up with any explanation..

Is there something i am missing?


Thnx

getchar() fetches a character from stdin. Post some code, then it's easier to see what you are having problems with.

Originally Posted by noahian

Hi guys,
I have just began the K&R book but i have trouble testing my code because it seems to me that the examples in the book assumes that when "getchar" is used, a char is fetched from a file.. though when i run the same code i manually have to type a string then hit enter to make that string get fetched by my code..

This poses a problem since many exercises use EOF to detect the end of available chars to get fetched and there is no way i can do that..

Anyway, i browsed through the previous pages to see if i missed something but could not come up with any explanation..

Is there something i am missing?


Thnx

getchar() reads the input stream "stdin", which is your keyboard. So yes you have to type.
On windows type CTRL-Z (That is press and hold the CTRL key while typing a Z) for EOF
On Linux and Mac type CTRL-D.

I see.. OK i'll go with ctrl-Z than.. Thanx a lot..