file:read/2 on stdin?

Bengt Kleberg <>
Wed Sep 29 17:43:00 CEST 2004


greetings,

is there a way to use file:read/2 to read 1 character from stdin? i have 
tried file:read( standard_io, 1). i got {error, einval}.
i used the atom standard_io since the io module will allow it as a 
Io_Device. in this case, ie in another module, it did not work.


it has been most intelligently suggested to me that i should use 
file:read/2 to get faster line oriented io. (background: i asked about a 
faster alternative to io:fread/2 some time ago). this is faster for 
regular files. but in this case (see 
http://shootout.alioth.debian.org/bench/sumcol, ''About this test'' as 
to why i read from stdin) it have trouble using it.


suggestions anyone? it is ok to point me to where ericsson has the 
source code to the file module.


bengt



More information about the erlang-questions mailing list