I tried what you suggested and it works just fine, so I guess this is the
correct way to implement C++ functions. It is way more complicated than the
C functions.
Thanks for the help, I really appreciate it.
aa
Peter Johansson-6 wrote:
>
> Hello,
>
> [adding autoconf list again]
>
> Alejandro Marcos Aragón wrote:
>> Well, I tried to put the namespace as well, but the test failed.
>>
>>
> I suppose you mean that you tried
>
> AC_SEARCH_LIBS([cpputils::flip], [cpputils],,[AC_MSG_ERROR(library
> cpputils not
> found)])
>
>
> which would result in test code:
>
> char cpputils::flip ();
> int
> main ()
> {
> return cpputils::flip ();
> ;
> return 0;
> }
>
>
> which is not what we desired. We would like something like (I'm not
> certain of your exact signature):
>
> namespace cpputils {
> void flip (double);
> }
> int
> main ()
> {
> using namespace cpputils;
> flip (1.0);
> ;
> return 0;
> }
>
>
> You could achieve this by rather calling AC_LINK_IFELSE as below
>
> LIBS="$LIBS -lcpputils"
> AC_MSG_CHECKING([for flip in cpputils])
> AC_LINK_IFELSE([AC_LANG_PROGRAM([[
> namespace cpputils {
> void flip(double);
> }
> ]],
> [using namespace cpputils;
> flip(1.0);])
> ],
> [AC_MSG_RESULT([yes])],
> [AC_MSG_RESULT([no])
> AC_MSG_ERROR([library cpputils not found])
> ]
> )
>
>
> Hope that helps.
>
>
> Peter
>
>
>
>> aa
>>
>> On Sun, 2009-02-22 at 23:26 -0500, Peter Johansson wrote:
>>
>>> aaragon wrote:
>>>
>>>> aaragon@aaragon-laptop:~/Lib/lib$ nm -g libcpputils.so | grep flip |
>>>> c++filt
>>>> 00003c20 T cpputils::flip(double)
>>>>
>>>>
>>>>
>>> Isn't the problem that flip(double) is in namespace cpputils?
>>>
>>> Peter
>>>
>>
>>
>
>
> --
> Peter Johansson
>
> svndigest maintainer, http://dev.thep.lu.se/svndigest
> yat maintainer, http://dev.thep.lu.se/yat
>
>
>
> _______________________________________________
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>
>
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