The error came in the case of entering ctrl-z on the first line.
The error msg on WinXP 32 was
^Z
object.Exception@D:\dmd\dmd2\windows\bin\..\..\src\phobos\std\stdio.d(943):
Enforcement failed
----------------
D:\dmd\dmd2\windows\bin\..\..\src\phobos\std\stdio.d(944): std
A solution that avoids the error is to add a check for stdin.eof().
void dict1_4()
{
size_t[string] dict; // see errata use size_t
foreach (line; stdin.byLine()){
if (stdin.eof()) break;
foreach (word; splitter(strip(line))){ // see errata required
std.algorithm
if (word in dict) continue;
auto newID = dict.length;
dict[word.idup] = newID; // see errata required idup
writeln(newID, '\t', word);
}
}
}
Andrei Alexandrescu Wrote:
> Got this from a reader:
>
> =======================
> I'm testing on Windows the code below, based on your errata changes for
> p8, print 1. It works ok if on console I enter some characters, but if I
> terminate console input with ctrl-z, then there is an error exit of the
> program. So, does this code need some exception handler to handle the
> immediate end of input from console?
>
> void dict1_4()
> {
> size_t[string] dict; // see errata use size_t
> foreach (line; stdin.byLine()){
> foreach (word; splitter(strip(line))){ // see errata required
> std.algorithm
> if (word in dict) continue;
> auto newID = dict.length;
> dict[word.idup] = newID; // see errata required idup
> writeln(newID, '\t', word);
> }
> }
>
> }
> =======================
>
> I thought Ctrl-Z simply sends EOF to the reader, so this should work.
> What is byLine() doing wrong?
>
>
> Thanks,
>
> Andrei
