Can anybody tell me why the code below should produce the error below? I'm
going nuts here! Am I missing something incredibly obvious and simple?
std::string::si ze_type idx;
std::string one_line;
..
..
..
idx = one_line.find(' \t', 0);
error C2059: syntax error : 'constant'
Jul 22 '05
13  1886 
Cy Edmunds wrote: "P.J. Plauger" <pj*@dinkumware .com> wrote in message
news:UH******** ***********@nwr ddc02.gnilink.n et...
"Cy Edmunds" <ce******@spaml ess.rochester.r r.com> wrote in message
news:DJ****** *************@t wister.nyroc.rr .com...
Ron made a great call here. It goes to show you why I hate C macros so
much.
As BS once commented, they make what the compiler sees different from
what you see. How can that be good?
Maybe the compiler doesn't recognize the same dialect that you want
to speak. I agree that macros can be abused, and the OP has presented
an extreme case of such abuse. But the irony is that C++ has spawned
so many dialects over the past decade that implementors *must* make
extensive use of the preprocessor to cope.
P.J. Plauger
Dinkumware, Ltd.
http://www.dinkumware.com
Absolutely no argument here.
I didn't realize the situation was that bad. I'm sure this is a
hopelessly naive question, but... What's wrong with complying (as
closely as possible) with the most recent standard, and providing flags
for compatibility with the most common dialects?
"Jeff Schwab" <je******@comca st.net> wrote in message
news:jL******** ************@co mcast.com... Cy Edmunds wrote: "P.J. Plauger" <pj*@dinkumware .com> wrote in message
news:UH******** ***********@nwr ddc02.gnilink.n et...
"Cy Edmunds" <ce******@spaml ess.rochester.r r.com> wrote in message
news:DJ****** *************@t wister.nyroc.rr .com...
Ron made a great call here. It goes to show you why I hate C macros so
much.
As BS once commented, they make what the compiler sees different from
what you see. How can that be good?
Maybe the compiler doesn't recognize the same dialect that you want
to speak. I agree that macros can be abused, and the OP has presented
an extreme case of such abuse. But the irony is that C++ has spawned
so many dialects over the past decade that implementors *must* make
extensive use of the preprocessor to cope.
P.J. Plauger
Dinkumware, Ltd.
http://www.dinkumware.com
Absolutely no argument here.
I didn't realize the situation was that bad. I'm sure this is a
hopelessly naive question, but... What's wrong with complying (as
closely as possible) with the most recent standard, and providing flags
for compatibility with the most common dialects?
Nothing, if that's all there was to it. Check out the macro spaghetti at the
top of various library code (standard library, boost, etc.) and see what
these poor guys have to put up with in order to get their code to compile
across platforms and compilers. It's brutal.
I'm opposed to the preprocessor if there is any reasonable alternative but
you do what you gotta do...
--
Cy http://home.rochester.rr.com/cyhome/
Cy Edmunds wrote: "Jeff Schwab" <je******@comca st.net> wrote in message
news:jL******** ************@co mcast.com...
Cy Edmunds wrote:
"P.J. Plauger" <pj*@dinkumware .com> wrote in message
news:UH***** **************@ nwrddc02.gnilin k.net...
"Cy Edmunds" <ce******@spaml ess.rochester.r r.com> wrote in message
news:DJ**** *************** @twister.nyroc. rr.com...
>Ron made a great call here. It goes to show you why I hate C macros so
>much.
>As BS once commented, they make what the compiler sees different from
>what you see. How can that be good?
Maybe the compiler doesn't recognize the same dialect that you want
to speak. I agree that macros can be abused, and the OP has presented
an extreme case of such abuse. But the irony is that C++ has spawned
so many dialects over the past decade that implementors *must* make
extensive use of the preprocessor to cope.
P.J. Plauger
Dinkumwar e, Ltd.
http://www.dinkumware.com
Absolutely no argument here.
I didn't realize the situation was that bad. I'm sure this is a
hopelessly naive question, but... What's wrong with complying (as
closely as possible) with the most recent standard, and providing flags
for compatibility with the most common dialects?
Nothing, if that's all there was to it. Check out the macro spaghetti at the
top of various library code (standard library, boost, etc.) and see what
these poor guys have to put up with in order to get their code to compile
across platforms and compilers. It's brutal.
I'm opposed to the preprocessor if there is any reasonable alternative but
you do what you gotta do...
I see what you mean. So, the problem isn't so much with dialects of
C++, but with portability across platforms?
"Jeff Schwab" <je******@comca st.net> wrote in message
news:lN******** ************@co mcast.com... Cy Edmunds wrote: "Jeff Schwab" <je******@comca st.net> wrote in message
news:jL******** ************@co mcast.com...
Cy Edmunds wrote:
"P.J. Plauger" <pj*@dinkumware .com> wrote in message
news:UH***** **************@ nwrddc02.gnilin k.net...
>"Cy Edmunds" <ce******@spaml ess.rochester.r r.com> wrote in message
>news:DJ**** *************** @twister.nyroc. rr.com...
>
>
>
>>Ron made a great call here. It goes to show you why I hate C macros
so>>much.
>
>>As BS once commented, they make what the compiler sees different from
>>what you see. How can that be good?
>
>Maybe the compiler doesn't recognize the same dialect that you want
>to speak. I agree that macros can be abused, and the OP has presented
>an extreme case of such abuse. But the irony is that C++ has spawned
>so many dialects over the past decade that implementors *must* make
>extensive use of the preprocessor to cope.
>
>P.J. Plauger
>Dinkumwar e, Ltd.
>http://www.dinkumware.com
>
>
Absolutely no argument here.
I didn't realize the situation was that bad. I'm sure this is a
hopelessly naive question, but... What's wrong with complying (as
closely as possible) with the most recent standard, and providing flags
for compatibility with the most common dialects?
Nothing, if that's all there was to it. Check out the macro spaghetti at
the top of various library code (standard library, boost, etc.) and see what
these poor guys have to put up with in order to get their code to
compile across platforms and compilers. It's brutal.
I'm opposed to the preprocessor if there is any reasonable alternative
but you do what you gotta do...
I see what you mean. So, the problem isn't so much with dialects of
C++, but with portability across platforms?
That and compilers, which have far more "personalit y" than the standard
allows. :) I guess that counts as dialects. There are other problems too,
like calling sequences, various non-standard declarations required to
compile DLL's, mumble mumble ...
I'm the wrong guy to ask though. My job doesn't really require me to get my
code to compile across a lot of platforms and compilers. It's guys like PJ
who bear the brunt of these problems.
--
Cy http://home.rochester.rr.com/cyhome/ This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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