Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!pilchuck!dataio!bright
From: bright@Data-IO.COM (Walter Bright)
Newsgroups: comp.lang.c++
Subject: Re: Calling C++ functions from MASM using Zortech 2.0
Keywords: MASM, name mangling, Zortech, C++
Message-ID: <2269@dataio.Data-IO.COM>
Date: 22 Dec 89 19:48:39 GMT
References: <2343@leah.Albany.Edu>
Reply-To: bright@dataio.Data-IO.COM (Walter Bright)
Organization: Data I/O Corporation; Redmond, WA
Lines: 19

In article <2343@leah.Albany.Edu> emb978@leah.Albany.Edu (Eric M. Boehm) writes:
<However, the assembler file (timer.asm) wants to call:
<  task_image far * task_control::task_switch(task_image far *, unsigned
<  int, signal *);
<The problem is that name mangling creates an identifier 53 characters
<long and masm only accepts 31 character identifiers.

What version of MASM are you using? Do all MASMs suffer from this? I know
that MS-LINK doesn't have any problem with it.

You can solve the problem by writing a "wrapper" function:

extern "C" task_image far *wrapper(task_control *p, task_image far *t,
	unsigned u, signal *s)
{
	return p->task_switch(t,u,s);
}

and having your asm routine call it instead.