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SG15 |
Subject: Re: [SG15] [Denver SG15 Meeting Paper] D1857r0.0: Modules Dependency Discovery
From: Matthew Woehlke (mwoehlke.floss_at_[hidden])
Date: 2019-09-20 12:26:37
On 30/08/2019 21.26, Michael Spencer via SG15 wrote:
> I've attached a paper I've written for the upcoming Denver SG15 meeting and
> the Belfast meeting.
>
> "This [...] is correct for standard C++ except for abuse of
> `__LINE__` such as `#if __LINE__ > 456`.
...and even then, presumably an implementation could keep track of
original line numbers which would let it handle such pathological cases.
BTW:
> The dependency scanner succeeds and then the compiler sees the code and
> iÌ´ÌÌgÌ¸Ì‚Ì Ì³ÍšÌ»nÌ¸Í Ì…Ì̾Ì̧̱̗o̶̲̳̫͒͊͊r̵̕Ì̺̱͚̩͎͌͑͒e̸̗̾s̸̮̰̻̥͑̑͊̂̆ ̴̤̄Íi̸ÌÍ̬m̵̿Ì̞͈p̷̢̛̣̹̒̑̽̀ö̴ÍĮ̜̖̱̀̈r̸̔Į̻̖̪̀̾ͅt̵̙̑s̸͑Ì̩͎̜̼̚ ̵̤̒͑ȩ̶̹̫̥͗̂r̵͗Í͈̦r̵̊Í̩̲̿o̸ÌÍŠĮ̞̙́͗͗r̷̀͋̚Ì̥̬̲͇sÌ·Ì‰Ì°Í…Ì Í™Ì¤ due to undefined behavior.
What on Earth happened here?
Anyway, thanks for the paper!
-- Matthew
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