Re: Problem with UTF-8

 James Kanze <>
Tue, 06 Nov 2007 09:18:41 -0000
On Nov 5, 6:21 pm, Charles <> wrote:

I'm designing a C++ application for the web (with FastCGI) and it has
to use UTF-8 because there will be users who will type Asian glyphs.
When I compile the application, if I use ANSI, no problem, it compiles
properly. But if I save the files as UTF-8, I get this error message:

%g++ -o cgi-bin/test.fcgi test.cpp
test.csp.cpp:1: error: stray '\239' in program
test.csp.cpp:1: error: stray '\187' in program
test.csp.cpp:1: error: stray '\191' in program
test.csp.cpp:1: error: invalid token
test.csp.cpp:1: error: expected constructor, destructor, or type
conversion before '<' token
test.csp.cpp: In function `int main()':
test.csp.cpp:5: error: `cout' was not declared in this scope
test.csp.cpp:5: error: `endl' was not declared in this scope

Something funny is going on. First, of course, if the file only
contains characters in the basic source character set, whether
it is UTF-8 or ASCII shouldn't make a difference---all of the
characters in the basic source character set are identical in
the two encodings. Even stranger, however, are the error
messages: g++ normally displays the uninterpretable character in
*octal*. But octal with an 8 or 9 in it? Something is very
strange about your g++.

I guess this is because UTF-8 format adds some extra info in
the header of the file.

It shouldn't.

Do you know how I could use UTF-8 with my application?

My editor at home is configured to use UTF-8, and it saves my
C++ files in "UTF-8". And I've never had any problems. (When I
write the comments in French, they look funny on my machine at
work, because it doesn't have any UTF-8 fonts installed, but
other than that, the compiler doesn't complain.)

Before anything else, however, I'd try to find out why your
installation of g++ is inserting 8's and 9's into its octal.
Then I'd write a very, very simple program (hello, world) with
my editor, and look at a hex dump of it, to see what it is
actually writing to the file---if the editor automatically
inserts junk you didn't insert, it may not be usable for program

James Kanze (GABI Software)
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