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POThe wcscoll function, is marked as poisoned, what do I do?
 

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  1. POThe wcscoll function, is marked as poisoned, what do I do?
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    <p>On Mac Os X 10.6.8 I can't compile code using wchar_t functions from the standard library until I have resolved this.</p> <p>The wcscoll function, together with a bunch of others:</p> <blockquote> <p><strong>inttypes.h</strong>:#pragma GCC poison wcstoimax wcstoumax <strong>stdlib.h</strong>:#pragma GCC poison mbstowcs mbtowc wcstombs wctomb <strong>wchar.h</strong>:#pragma GCC poison fgetws fputwc fputws fwprintf fwscanf mbrtowc mbsnrtowcs >mbsrtowcs putwc putwchar swprintf swscanf vfwprintf vfwscanf vswprintf vswscanf vwprintf >vwscanf wcrtomb wcscat wcschr wcscmp wcscoll wcscpy wcscspn wcsftime wcsftime wcslcat >wcslcpy wcslen wcsncat wcsncmp wcsncpy wcsnrtombs wcspbrk wcsrchr wcsrtombs wcsspn wcsstr >wcstod wcstof wcstok wcstol wcstold wcstoll wcstoul wcstoull wcswidth wcsxfrm wcwidth >wmemchr wmemcmp wmemcpy wmemmove wmemset wprintf wscanf</p> </blockquote> <pre><code>#include &lt;stdio.h&gt; #include &lt;wchar.h&gt; #include &lt;string.h&gt; #include &lt;locale.h&gt; #include &lt;stdlib.h&gt; extern int errno; int main(void) { wchar_t pwcs1[3]={L"ØL"}, pwcs2[3]={L"Ål"}; size_t n; (void)setlocale(LC_ALL, ""); /* set it to zero for checking errors on wcscoll */ errno = 0; /* ** Let pwcs1 and pwcs2 be two wide character strings to ** compare. */ /* n = wcscmp(pwcs1, pwcs2); */ n = wcscoll(pwcs1, pwcs2); /* ** If errno is set then it indicates some ** collation error. */ if (n &lt; 0 ) { printf("%s\n","Øl mindre en Ål" ); } else if (n == 0) { printf("%s\n","Øl lik Ål" ); } else { printf("%s\n","Øl større en Ål" ); } if(errno != 0){ /* error has occurred... handle error ...*/ } } </code></pre> <p>How do I resolve this? I am a little bit reluctant to mess with the standard library. But I guess I <strong>maybe</strong> can compile the GNU C library, if Apple hasn't a fix for it? Or is there any other suitable alternatives amongst libraries for handling wide characters (Utf-8). </p> <p>I am porting something ancient, so I really need to use ncurses, and in order to use ncurses, I need wide characters! :)</p> <p>Edit: The standard includepath should, as I have understood it be /usr/include. I have been through the include directories of the SDK's I have, and a grep through the header files there reveals the same poison pragma's, as did the latest tarball from <a href="http://opensource.apple.com/tarballs/Libc/" rel="nofollow">http://opensource.apple.com/tarballs/Libc/</a></p> <p><strong>Edit++</strong></p> <p>Hindsightly, those pragmas are there for a reason, and I was looking for alternatives, so right now, I am trying to build glibc, just downloaded, and I have inspected the headers, which are without any "GCC poison" pragmas.</p> <p>Having read up a little bit, in the configure file of glibc, I guess that isn't an easy option. I guess I'll have to dissect something that works with utf-8 and uses ncurses on mac osX to figure out how.</p> <p>It might be that I am just overlooking an easy solution. But ncurses falls back on 7-bit ascii, and that is my problem. My goal is to render utf-8 language specific characters, while using ncurses. I need to be able to sort since the format is "propritary" with indexing, forking out a system call to sort records is no option. I also need to be able to know how many codepoints that are in a string of some kind for field-editing, insertion and removal of characters from the display with ncurses.</p> <p>Thanks!</p>
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    1. COCould you paste some code snippets? as well as the error code.
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    2. COHello. For some reason, that error just disappeared, but the function still just produces gibberish! When I compare "Øl" to "År" I get the result of 1, signifying that Øl is greater than År. I have set the locale LC_ALL to no_No-UTF-8. SO there should be no doubt. I have added the code example, that for mysterious reasons started to work, but produce errounous results above.
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