I get errors from MSVC in <netdb.h> i C++ mode. E.g. in compiling
test-netdb-c++.cc:
netdb.h(189): error C2440: 'return': cannot convert
from 'INT (__stdcall *)(PCSTR,PCSTR,const ADDRINFOA *,PADDRINFOA *)' to
'gnulib_::_gl_getaddrinfo_wrapper::type'
Ditto error for '_gl_freeaddrinfo_wrapper'.
Some of the pre-processed output of the _GL_CXXALIAS_SYS() macro at
line 189 in netdb.h is:
namespace gnulib_ {
static const struct _gl_getaddrinfo_wrapper {
typedef int (*type) (const char * nodename,
const char * servname,
const struct addrinfo * hints,
struct addrinfo ** res);
__inline operator type () const
{
return ::getaddrinfo; << !! error is here
}
}
getaddrinfo = {};
}
Instead this requires a 'reinterpret_cast<type>'.
Hence with this patch, it compiles and runs fine:
--- a/netdb.in.h 2016-01-30 20:42:17
+++ b/netdb.in.h 2016-12-15 12:53:28
@@ -170,7 +170,7 @@
struct addrinfo **restrict res)
_GL_ARG_NONNULL ((4)));
# endif
-_GL_CXXALIAS_SYS (getaddrinfo, int,
+_GL_CXXALIAS_SYS_CAST (getaddrinfo, int,
(const char *restrict nodename,
const char *restrict servname,
const struct addrinfo *restrict hints,
@@ -184,7 +184,7 @@
_GL_FUNCDECL_SYS (freeaddrinfo, void, (struct addrinfo *ai)
_GL_ARG_NONNULL ((1)));
# endif
-_GL_CXXALIAS_SYS (freeaddrinfo, void, (struct addrinfo *ai));
+_GL_CXXALIAS_SYS_CAST (freeaddrinfo, void, (struct addrinfo *ai));
_GL_CXXALIASWARN (freeaddrinfo);
# if @REPLACE_GAI_STRERROR@
---------
This is because of Winsock's __stdcall I assume?
I've not checked all test-*.cc files for such errors.
--
--gv
