DMD32 D Compiler v2.074.1

import std.file;

void main() {
   string bigInput = readText("input.txt");
}

The file is 7 MB of ascii text, don't know if that matters...

Should I upgrade versions?

On Tuesday, 18 July 2017 at 02:21:59 UTC, Enjoys Math wrote:
>
> DMD32 D Compiler v2.074.1
>
> import std.file;
>
> void main() {
>    string bigInput = readText("input.txt");
> }
>
> The file is 7 MB of ascii text, don't know if that matters...
>
> Should I upgrade versions?

I wonder if it thinks there is a BOM and eats it?

On Tuesday, 18 July 2017 at 02:21:59 UTC, Enjoys Math wrote:
>
> DMD32 D Compiler v2.074.1
>
> import std.file;
>
> void main() {
>    string bigInput = readText("input.txt");
> }
>
> The file is 7 MB of ascii text, don't know if that matters...
>
> Should I upgrade versions?

Could you please share the first 32-bytes (in hex) of your file? Like:
$ hexdump -C input.txt

On 7/17/17 10:21 PM, Enjoys Math wrote:
> 
> DMD32 D Compiler v2.074.1
> 
> import std.file;
> 
> void main() {
>     string bigInput = readText("input.txt");
> }
> 
> The file is 7 MB of ascii text, don't know if that matters...
> 
> Should I upgrade versions?

Looking at the implementation of readText, I believe its implementation is not able to trim off the beginning of a file. Be wary of how you look at the result, some tools may "helpfully" hide things (like unprintable characters, or overwrite what has already been displayed when it sees a carriage return).

If you can't figure it out yourself, the best thing to do here is to post your exact file somewhere so people can diagnose. Or reproduce with a smaller one, and then post that somewhere.

-Steve

On Wednesday, 19 July 2017 at 15:18:00 UTC, Steven Schveighoffer wrote:
> On 7/17/17 10:21 PM, Enjoys Math wrote:
>> 
>> DMD32 D Compiler v2.074.1
>> 
>> import std.file;
>> 
>> void main() {
>>     string bigInput = readText("input.txt");
>> }
>> 
>> The file is 7 MB of ascii text, don't know if that matters...
>> 
>> Should I upgrade versions?
>
> Looking at the implementation of readText, I believe its implementation is not able to trim off the beginning of a file. Be wary of how you look at the result, some tools may "helpfully" hide things (like unprintable characters, or overwrite what has already been displayed when it sees a carriage return).
>
> If you can't figure it out yourself, the best thing to do here is to post your exact file somewhere so people can diagnose. Or reproduce with a smaller one, and then post that somewhere.
>
> -Steve

I'm feeling this. My keyboard sometimes messes up and will send invalid key presses to my OS which often ends up with invalid characters being written in files.

When I encounter it I usually open Notepad++ and turn on show all characters which will display unprintable characters, simply allowing me to delete them and have a clean file again.