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Re: OT: Is this the right list? - [Fwd: #line and g++]


On Tuesday, September 17, 2002, at 11:35 AM, Aldo Dolfi wrote:
I posted this message yesterday and got no answer. I know
that I should not expect that every question gets its
answer :) but I would like to know at least if this is
the correct list to ask this kind of question or not.

I tried to search for other places but, apart from general
c++ discussion I found nothing. And I think this is an issue
specific of gcc. I did not find anything in docs, either.
If you think you found a bug, report it to gcc-bugs. Yes, if it doesn't work, it is probably a bug. I tried it, and it seemed to work:

#line 23 "foo"
void foo() {
}

__Z3foov:
.stabs "foo",132,0,0,Ltext1

Aldo Dolfi wrote:
Hello,

I have a problem in using #line directive with c++ compiler.
If I force a line of code in a `cfile.c' to be considered as
coming from a different source file `source.ext' with a

# line 99 "source.ext"

directive and compile it with g++ it does not work. I mean
that looking at the object file with `objdump -G' I don't
find any reference to the string `source.ext' and if I try
symbolic debugging (ddd) I don't see this file in the list
of sources.
Looking at the assembler output (-E) I saw only .stabn are
inserted and not .stabs "source.ext"
-E doesn't do that, you must be confused.

If I compile the same source file with gcc it works.

Are there any differences in the syntax or usage of #line
between the two compilers?
Also, you failed to mention anything relevant, like a test case, or the platform, or the debugging information, or the output you saw... This can lead to people ignoring your message.


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