http://d.puremagic.com/issues/show_bug.cgi?id=7374
Summary: stdin.byLine() throws AssertError on empty input Product: D Version: D2 Platform: x86_64 OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: Phobos AssignedTo: nob...@puremagic.com ReportedBy: hst...@quickfur.ath.cx --- Comment #0 from hst...@quickfur.ath.cx 2012-01-26 12:16:45 PST --- Here's the test program: import std.stdio; void main() { foreach (line; stdin.byLine()) { writeln("Got input line: ", line); } } When the program is run on an empty input (e.g., running 'echo -n | program' in the shell, or hitting ctrl-D once the program starts up, or piping an empty file to the program), an assertion fails: core.exception.AssertError@/usr/include/d2/4.6/std/stdio.d(989): Bug in File.readln It appears that the problem is caused by one of two things: (1) ByLine.empty() assuming that as long as a file is open it will have at least 1 line, but this is not true when the input is 0 bytes. (2) stdin.readln() returns null if the input has 0 bytes, instead of a line of 0 length (which is what it does at EOF if the input is *not* empty). -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------