Re: readf error bug?
On Saturday, 9 May 2015 at 08:30:31 UTC, Dave Akers wrote:
The following...
import std.stdio;
void main() {
write(How many students are there? );
int studentCount;
readf(%s, studentCount);
write(How many teachers are there? );
int teacherCount;
readf(%s, teacherCount);
writefln(Got it: there are %d students., studentCount);
writefln(And there are %d teachers., teacherCount);
}
When given the input...
10
42
will produce the error...
std.conv.ConvException@/usr/include/dlang/dmd/std/conv.d(2013):
Unexpected '4' when converting from type LockingTextReader to
type int
I understand what is wrong and how to fix it but the produced
error is
incorrect.
To '\ n' does not remain in the input stream, it is necessary to
write so:
-
readf(%s , studentCount);
readf error bug?
The following...
import std.stdio;
void main() {
write(How many students are there? );
int studentCount;
readf(%s, studentCount);
write(How many teachers are there? );
int teacherCount;
readf(%s, teacherCount);
writefln(Got it: there are %d students., studentCount);
writefln(And there are %d teachers., teacherCount);
}
When given the input...
10
42
will produce the error...
std.conv.ConvException@/usr/include/dlang/dmd/std/conv.d(2013):
Unexpected '4' when converting from type LockingTextReader to type int
I understand what is wrong and how to fix it but the produced error is
incorrect.
Re: readf error bug?
On Saturday, 9 May 2015 at 08:41:49 UTC, Dave Akers wrote:
On Saturday, 9 May 2015 at 08:34:42 UTC, Dennis Ritchie wrote:
On Saturday, 9 May 2015 at 08:30:31 UTC, Dave Akers wrote:
The following...
import std.stdio;
void main() {
write(How many students are there? );
int studentCount;
readf(%s, studentCount);
write(How many teachers are there? );
int teacherCount;
readf(%s, teacherCount);
writefln(Got it: there are %d students., studentCount);
writefln(And there are %d teachers., teacherCount);
}
When given the input...
10
42
will produce the error...
std.conv.ConvException@/usr/include/dlang/dmd/std/conv.d(2013):
Unexpected '4' when converting from type LockingTextReader to
type int
I understand what is wrong and how to fix it but the produced
error is
incorrect.
To '\ n' does not remain in the input stream, it is necessary
to write so:
-
readf(%s , studentCount);
I was meaning this as a bug report.
issues.dlang.org please, otherwise no-one will remember to fix it.
Re: readf error bug?
On Sat, 09 May 2015 09:23:23 +, John Colvin wrote:
On Saturday, 9 May 2015 at 08:41:49 UTC, Dave Akers wrote:
On Saturday, 9 May 2015 at 08:34:42 UTC, Dennis Ritchie wrote:
On Saturday, 9 May 2015 at 08:30:31 UTC, Dave Akers wrote:
The following...
import std.stdio;
void main() {
write(How many students are there? );
int studentCount;
readf(%s, studentCount);
write(How many teachers are there? );
int teacherCount;
readf(%s, teacherCount);
writefln(Got it: there are %d students., studentCount);
writefln(And there are %d teachers., teacherCount);
}
When given the input...
10 42
will produce the error...
std.conv.ConvException@/usr/include/dlang/dmd/std/conv.d(2013):
Unexpected '4' when converting from type LockingTextReader to type
int
I understand what is wrong and how to fix it but the produced error
is incorrect.
To '\ n' does not remain in the input stream, it is necessary to write
so:
-
readf(%s , studentCount);
I was meaning this as a bug report.
issues.dlang.org please, otherwise no-one will remember to fix it.
Submitted... or rather found a similar one and updated it.
https://issues.dlang.org/show_bug.cgi?id=12260
Re: readf error bug?
On Saturday, 9 May 2015 at 08:34:42 UTC, Dennis Ritchie wrote:
On Saturday, 9 May 2015 at 08:30:31 UTC, Dave Akers wrote:
The following...
import std.stdio;
void main() {
write(How many students are there? );
int studentCount;
readf(%s, studentCount);
write(How many teachers are there? );
int teacherCount;
readf(%s, teacherCount);
writefln(Got it: there are %d students., studentCount);
writefln(And there are %d teachers., teacherCount);
}
When given the input...
10
42
will produce the error...
std.conv.ConvException@/usr/include/dlang/dmd/std/conv.d(2013):
Unexpected '4' when converting from type LockingTextReader to
type int
I understand what is wrong and how to fix it but the produced
error is
incorrect.
To '\ n' does not remain in the input stream, it is necessary
to write so:
-
readf(%s , studentCount);
I was meaning this as a bug report. But wanted to point out your
solution does not work. I was interested in D back in 1.0 days
but soo much has changed in d 2.0 that I'm reading through the
Programming in D book to learn all the new stuff and came
across this odd un-helpful error.
...
readf( %s, studentCount);
...
readf( %s, teacherCount);
...
that way it will ignore any non int chars left on the stdin
stream.
