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From: saustin@bbn.com
Newsgroups: comp.lang.c++
Subject: Re: Why doesn't inline always work?
Keywords: inline fails
Message-ID: <53294@bbn.COM>
Date: 9 Mar 90 22:36:18 GMT
References: <540@janus.Quotron.com> <2370@dataio.Data-IO.COM>
Sender: news@bbn.COM
Lines: 22

bright@Data-IO.COM (Walter Bright) writes:

>In article <540@janus.Quotron.com> todd@janus.Quotron.com (Todd Booth) writes:
><I know of a 2.0 C++ beta product that does not expand inline
><functions that contain a goto, for, do, or while, as inline.  
><Do any other C++ products?
>	No.

Yes. GNU g++ does!

>C++ compilers inline-expand functions by substituting expressions.

As far as I can gather, g++ plonks the machine instructions wherever the
inline function was mentionned. It is not constrained to substitite a valid
C expression for the function call.

I should think that cfront could be modified to behave correctly by writing
loads of "if" statements, in which case there would be a near one-to-one
correspondence between the flow of the C and and the resulting assembler
output.

	Steve Austin