From: ron@ronnatalie.com (Ronald Natalie)
Subject: [TUHS] why the leading under score added to function names?
Date: Sun, 26 Feb 2012 08:28:36 -0500 [thread overview]
Message-ID: <29D22528-0E74-4465-BA18-BF3DDE1BB674@ronnatalie.com> (raw)
In-Reply-To: <4F495D84.8030206@fastmail.us>
On Feb 25, 2012, at 5:15 PM, Random832 wrote:
>>
>
> This is not true in my experience. If it was ever true, it's not true
> today (with MSVC, anyway. GCC may be different, but if there is a
> 'system-provided main()' it's GCC, or cygwin or mingw, and not anything
> from microsoft, that is providing it). The procedure "provided by
> windows" (provided by MSVC, actually) that does that is in fact called
> WinMainCRTStartup.
WinMainCRTStartup isn't the replacement for main. It's the replacement for begin or location zero back in the old days. (Anybody remember seeing p&P6 printed by errant programs?). There are different versions of that CRT startup (actually all compiled from the same module with ifdefs) that start:
main - for non-MFC console apps
wmain - same thing but with wchar_t arguments (SOMETHING C/C++ standards hasn't ever addressed to my satisfaction).
WinMain - MFC main function
wWinMain - Ditto, with wchar_t
Actually the bulk of the CRT involves converting between the command line argument as a string and argc/argv (something UNIX does by the OS), and some gook necessary to support C++.
The fake UNIX environment (POSIX) (read/write/seek, etc...) actually is NOT initialized here, but when it is actually referenced.
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next prev parent reply other threads:[~2012-02-26 13:28 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-22 19:17 arnold
2012-02-22 21:22 ` Dave Horsfall
2012-02-22 22:47 ` A. P. Garcia
2012-02-23 4:30 ` Greg 'groggy' Lehey
2012-02-25 18:45 ` Random832
2012-02-25 19:24 ` Steve Nickolas
2012-02-25 20:39 ` John Cowan
2012-02-25 22:15 ` Random832
2012-02-26 13:28 ` Ronald Natalie [this message]
2012-02-27 1:30 ` random832
-- strict thread matches above, loose matches on Subject: below --
2012-02-20 20:52 arnold
2012-02-20 23:21 ` Dave Horsfall
2012-02-21 0:34 ` Brantley Coile
2012-02-21 2:50 ` Warner Losh
2012-02-21 3:33 ` John Cowan
2012-02-21 3:41 ` Steve Nickolas
2012-02-21 18:18 ` ron
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