I accidentally typed an extra asterisk in the format specifier.
I know that it is wrong but the error isn't clear about what
and where the error is.

import std.stdio;

void main()
{
writef("%*10s", 100);
}

and I got the following error message(s):

$ dmd -run writef.d
std.format.FormatException@std/format.d(978): $ expected
----------------
??:? pure @safe bool
std.exception.enforceEx!(std.format.FormatException).enforceEx!(bool).enforceEx(bool,
lazy immutable(char)[], immutable(char)[], ulong) [0x437786]
??:? pure @safe void std.format.FormatSpec!(char).FormatSpec.fillUp()
[0x44754b]
??:? @safe bool
std.format.FormatSpec!(char).FormatSpec.writeUpToNextSpec!(std.stdio.File.LockingTextWriter).writeUpToNextSpec(std.stdio.File.LockingTextWriter)
[0x438173]
??:? @safe uint
std.format.formattedWrite!(std.stdio.File.LockingTextWriter, char,
int).formattedWrite(std.stdio.File.LockingTextWriter, const(char[]),
int) [0x436f99]
??:? @safe void std.stdio.File.writefln!(char,
int).writefln(const(char[]), int) [0x436e9c]
??:? @safe void std.stdio.writefln!(immutable(char)[],
int).writefln(immutable(char)[], int) [0x436deb]
??:? _Dmain [0x436d9f]
??:? _D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ6runAllMFZ9__lambda1MFZv
[0x443cc2]
??:? void rt.dmain2._d_run_main(int, char**, extern (C) int
function(char[][])*).tryExec(scope void delegate()) [0x443c18]
??:? void rt.dmain2._d_run_main(int, char**, extern (C) int
function(char[][])*).runAll() [0x443c7e]
??:? void rt.dmain2._d_run_main(int, char**, extern (C) int
function(char[][])*).tryExec(scope void delegate()) [0x443c18]
??:? _d_run_main [0x443b75]
??:? main [0x43f8d5]
??:? __libc_start_main [0xba3cc60f]

On 11/16/2015 10:56 AM, ric maicle wrote:
> I accidentally typed an extra asterisk in the format specifier.
> I know that it is wrong but the error isn't clear about what
> and where the error is.
>
> import std.stdio;
>
> void main()
> {
> writef("%*10s", 100);
> }
>
> and I got the following error message(s):
>
> $ dmd -run writef.d
> std.format.FormatException@std/format.d(978): $ expected

That message can be improved. Please open a bug report:

  https://issues.dlang.org/enter_bug.cgi

Thank you,
Ali

On Tuesday, 17 November, 2015 03:49 AM, Ali Çehreli wrote:
> On 11/16/2015 10:56 AM, ric maicle wrote:
>> I accidentally typed an extra asterisk in the format specifier.
>> I know that it is wrong but the error isn't clear about what
>> and where the error is.
>>
>> import std.stdio;
>>
>> void main()
>> {
>> writef("%*10s", 100);
>> }
>>
>> and I got the following error message(s):
>>
>> $ dmd -run writef.d
>> std.format.FormatException@std/format.d(978): $ expected
>
> That message can be improved. Please open a bug report:
>
>    https://issues.dlang.org/enter_bug.cgi
>
> Thank you,
> Ali

Filed: https://issues.dlang.org/show_bug.cgi?id=15348