From: Paul Winalski <firstname.lastname@example.org>
To: Ralph Corderoy <email@example.com>
Subject: [COFF] Re: Conditions, AKA exceptions.
Date: Mon, 13 Mar 2023 13:10:17 -0400 [thread overview]
Message-ID: <CABH=_VSLp52gB1+kszMBe3BgxZ+PM2kJwrQgp-z2fBwzAVNosA@mail.gmail.com> (raw)
On 3/13/23, Ralph Corderoy <firstname.lastname@example.org> wrote:
>> That said, I absolutely loathe exceptions with all my heart.
> I'm not a fan either.
Exceptions play merry hell with compiler optimizations. If you are in
a piece of code where an exception can occur, unless you have
knowledge of the global side-effects of the handler(s) that might get
invoked you must abandon any attempts to do data flow analysis of
global data items.
The C++ Standard Library is fond of using throw and catch exception
handling. An optimizing compiler pretty much has to throw all data
flow optimization involving global variables, or things passed to a
callee by pointer, if anything in the call chain calls a C++ Standard
From a compiler writer's perspective, the name STD for the C++
Standard Library is most apt. STD routines are a disease that infects
anything that touches them.
next prev parent reply other threads:[~2023-03-13 17:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-10 17:11 [COFF] Re: [TUHS] Re: Conditions, AKA exceptions. (Was: I can't drive 55: "GOTO considered harmful" 55th anniversary) Bakul Shah
2023-03-10 17:28 ` segaloco via COFF
2023-03-10 17:34 ` Larry McVoy
2023-03-10 17:35 ` Bakul Shah
2023-03-10 17:42 ` Larry McVoy
2023-03-11 11:28 ` [COFF] Conditions, AKA exceptions Ralph Corderoy
2023-03-12 4:23 ` [COFF] " Theodore Ts'o
2023-03-12 10:44 ` Ralph Corderoy
2023-03-12 16:46 ` Paul Winalski
2023-03-12 16:53 ` Larry McVoy
2023-03-10 17:43 ` [COFF] Re: [TUHS] Re: Conditions, AKA exceptions. (Was: I can't drive 55: "GOTO considered harmful" 55th anniversary) segaloco via COFF
2023-03-10 18:03 ` Dan Cross
2023-03-10 18:57 ` Bakul Shah
2023-03-10 19:57 ` Marshall Conover
2023-03-13 16:47 ` [COFF] Conditions, AKA exceptions Ralph Corderoy
2023-03-13 17:10 ` Paul Winalski [this message]
2023-03-13 21:12 ` [COFF] " Dave Horsfall
2023-03-10 17:47 ` [COFF] Re: [TUHS] Re: Conditions, AKA exceptions. (Was: I can't drive 55: "GOTO considered harmful" 55th anniversary) Bakul Shah
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