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Date: Sun, 6 Jan 2002 05:00:07 -0800 (PST)
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Cc: 
From: Bruce Evans <bde@zeta.org.au>
Subject: Re: misc/33590: imaxabs(3), imaxdiv(3) does not work with C++ linkage
Reply-To: Bruce Evans <bde@zeta.org.au>
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The following reply was made to PR misc/33590; it has been noted by GNATS.

From: Bruce Evans <bde@zeta.org.au>
To: Vladimir Kushnir <vkushnir@Alfacom.net>, <mike@freebsd.org>
Cc: <freebsd-gnats-submit@freebsd.org>
Subject: Re: misc/33590: imaxabs(3), imaxdiv(3) does not work with C++ linkage
Date: Sun, 6 Jan 2002 23:55:14 +1100 (EST)

 On Sat, 5 Jan 2002, Vladimir Kushnir wrote:
 
 > >Description:
 > Libc functions imaxabs(3), imaxdiv(3) used in C++ programs lead to "undefined
 > reference" errors.
 > >How-To-Repeat:
 > Compile as C++ this code:
 > /* test.cc */
 > #include <inttypes.h>
 >
 > main() {
 > intmax_t a = 1;
 > intmax_t b;
 > imaxdiv_t c;
 > b = imaxabs(a);
 > c = imaxdiv(a, b);
 > }
 >
 > Output:
 > ~> c++ -o itest test.cc
 > /tmp/ccplyujk.o: In function `main':
 > /tmp/ccplyujk.o(.text+0x21): undefined reference to `imaxabs(long long)'
 > /tmp/ccplyujk.o(.text+0x4e): undefined reference to `imaxdiv(long long, long long)'
 >
 >
 > >Fix:
 
 %%%
 Index: inttypes.h
 ===================================================================
 RCS file: /home/ncvs/src/include/inttypes.h,v
 retrieving revision 1.2
 diff -u -2 -r1.2 inttypes.h
 --- inttypes.h	15 Nov 2001 02:05:03 -0000	1.2
 +++ inttypes.h	6 Jan 2002 12:51:47 -0000
 @@ -43,4 +43,5 @@
  } imaxdiv_t;
 
 +__BEGIN_DECLS
  intmax_t	imaxabs(intmax_t) __pure2;
  imaxdiv_t	imaxdiv(intmax_t, intmax_t) __pure2;
 @@ -51,4 +52,5 @@
  intmax_t	wcstoimax(const wchar_t *, wchar_t **, int);
  uintmax_t	wcstoumax(const wchar_t *, wchar_t **, int);
 +__END_DECLS
 
  #endif /* !_INTTYPES_H_ */
 %%%
 
 Bruce
 

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