Octal literals 01 through 07 allowed, but not in the grammar

[dlangBugzillaToGithub]

Hiroki Noda (@kubo39) reported this on 2018-07-08T13:06:25Z

Transferred from https://issues.dlang.org/show_bug.cgi?id=19070

CC List

• Dennis
• Steven Schveighoffer (@schveiguy)

Description

I found these pathlogical examples pass the lexer:

---
void main()
{
    assert(01 == 1);   // can compile and run.
    assert(010 == 8);  // Error: octal literals 010 are no longer supported, use std.conv.octal!10 instead
}
---

[dlangBugzillaToGithub]

kubo39 commented on 2018-07-12T15:41:27Z

Attemptive PR : https://github.com/dlang/dmd/pull/8490

[dlangBugzillaToGithub]

schveiguy (@schveiguy) commented on 2018-09-14T13:54:47Z

This is a spec issue, literals 01 through 07 are correct decimal literals, so the confusion caused by using octals is not relevant there.

[dlangBugzillaToGithub]

kubo39 commented on 2019-07-25T02:33:40Z

Close this: see https://github.com/dlang/dmd/pull/8490#issuecomment-404716464

[dlangBugzillaToGithub]

dkorpel commented on 2021-07-15T19:06:48Z

As long as neither the spec nor dmd are updated to accommodate the other, this remains an open issue.

[dlangBugzillaToGithub]

dlang-bot commented on 2021-07-15T19:40:57Z

@schveiguy created dlang/dlang.org pull request #3066 "Fix issue 19070 - some octal literals are actually allowed" fixing this issue:

- Fix issue 19070 - some octal literals are actually allowed

https://github.com/dlang/dlang.org/pull/3066