aCC Compile Error 585

[Guido Rost]

After I compiled my code on several Unix and Windows platforms I got this strange Error on HP-UX and I can't figure out the problem. The problem is this:
Error 585: ./h/typemgr_intern.h, line 139 # Expected an operator before '::'.
const o_double MAX = (std::numeric_limits::max)();
^^
Error 172: ./h/typemgr_intern.h, line 139 # Undeclared variable 'std'.
const o_double MAX = (std::numeric_limits::max)();

The compiler call looks like this:
aCC -I. -I./h -I../h -I../om/h -I../sm/h -O -c +Z +DA2.0W +DS2.0 -DHP11 -mt -DVS_USE_64_CALLS -D_LARGEFILE64_SOURCE -o /build/qa/VOD/VOD_7.x_Integration/VOD7.0.1.4-144-20080520_2030/HP-UX_64bit/opt/build_area/kernel/7.0.1.4/HP-UX_64bit/opt//o/typemgr.o /versant/vod/qa.local/VOD_7.x_Integration/VOD7.0.1.4-144-20080520_2030/src/kernel/typemgr/typemgr.c

Would be great if someone can help me.
Thanks,
Guido

[Dennis Handly]

>After I compiled my code on several Unix and Windows platforms

If you want to use the std namespace, you'll need to compile with -AA. Be aware the default on PA is -AP and if your application is going to use third party C++ libs, you may have to port back to -AP mode:
http://h21007.www2.hp.com/portal/site/dspp/menuitem.863c3e4cbcdc3f3515b49c108973a801/?ciid=eb08b3f1eee02110b3f1eee02110275d6e10RCRD

>Error 172: # Undeclared variable 'std'.

namespace std isn't defined.

>aCC -O -c +Z +DA2.0W +DS2.0 -mt -D_LARGEFILE64_SOURCE

You should replace obsolete +DA2.0W by +DD64.

[Dennis Handly]

>const o_double MAX = (std::numeric_limits::max)();

What do you think this syntax should be doing?
Did you want to do:
const o_double MAX = numeric_limits::max();

[Guido Rost]

Thanks for you reply. Your suggestion worked. The incorrect line was the output of the compiler. The source code looks of course different.
Thanks,
Guido

[Dennis Handly]

If you are happy with the answers you got, please read the following about how to assign points:
http://forums.itrc.hp.com/service/forums/helptips.do?#33

[Neel2]

Hello,

Could you please let me know, how can i compile the following statement on PA-RISC
using the following conf:
aCC: HP ANSI C++ B3910B A.03.57
HP-UX B.11.11 U 9000/800 109092009 unlimited-user license

The statement is:
const o_double MAX = (std::numeric_limits::max)();


Currently I can compile the above statement using -AA, but i need to compile with the default on PA-RISC which is -AP, Could you please let me know how can modify the above statement in order to get compile with -AP.

I have gone thru the following FAQ's.
Can I use this in any way:
11. Can I write code that works for both?

Yes. Only with conditional compilation. And/or by using the following
namespace std:: construct:
namespace std {} using namespace std;
You can put this construct anywhere, as many times as you like. Or once at the beginning - as long it is before you reference any symbol that doesn't have the needed std::. And you can use it with -AP too.


Regards,
Neel

[Dennis Handly]

>how can I compile the following statement on PA-RISC:
>const o_double MAX = (std::numeric_limits::max)();

Why do you have an extra set of () around the function name? Remove it.

>but I need to compile with the default on PA-RISC which is -AP, Could you please let me know how can modify the above statement in order to get compile with -AP.

The simple way is to use:
const o_double MAX = numeric_limits::max();
You can also use:
const o_double MAX = ::numeric_limits::max();

That way you can evil macros and have std be replaced by empty:
#define std

>Can I use this in any way:
>namespace std {} using namespace std;

This works if you leave out "std::" in front of everything. Then you use the namespace directive to also look in namespace std in -AA mode, in the global namespace for -AP.

[Neel2]

aCC -I. -I./h -I../h -I../om/h -I../sm/h -O -c +DD64 +Z -DHP11 -mt -DVS_USE_64_CALLS -D_LARGEFILE64_SOURCE -o /dsk1/nkhemkar/vod7014_build_64bit/kernel/7.0.1.4/HP-UX_64bit/opt//o/typemgr.o /dsk1/skadam/src/kernel/typemgr/typemgr.c
Error 172: "./h/typemgr_intern.h", line 140 # Undeclared variable 'std'.
const o_double MAX = std::numeric_limits::max();
^^^
Error 20: "./h/typemgr_intern.h", line 140 # ';' expected before '::'.
const o_double MAX = std::numeric_limits::max();
^^
aCC throws the above error.

Regards,
Neel

[Neel2]

The following works, without -AA:

const o_double MAX =
::numeric_limits::max();

Thanks,
Neel

[Neel2]

So, its using the default namespace or std namespace, could you please explain a bit.

[Neel2]

Hello,

Also, Could you please let me know, the diagnostic for the following warnings.

I have gone thru at: http://docs.hp.com/en/11925/Diagnostics_Documentation/Diagnostics_index.htm#2068

But could not find anything related to the same.

------------------------------------------------
Warning 829: "/dsk1/src/kernel/ut/chk/chkusage.c", line 940 # Implicit conversion of string literal to 'char *' is deprecated.
a_printf("\npart of the \"-sys\" module in case the module is not"
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Warning 829: "/dsk1/src/kernel/ut/chk/chkusage.c", line 942 # Implicit conversion of string literal to 'char *' is deprecated.
a_printf("\ne.g \"%s -check \" is the same as \"%s -sys -check"
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Warning 829: "/dsk1/src/kernel/ut/chk/chkusage.c", line 944 # Implicit conversion of string literal to 'char *' is deprecated.
a_printf("\n\n");
^^^^^^
Warning 749: "/dsk1/src/kernel/sl/slheap.c", line 2322 # The cast from 'h
eap_header *' to 'heap_shared *' is performed as a 'reinterpret_cast'. This oper
ation is non-portable and potentially unsafe.
err = sl_shared_extend(HEAP_SHARED(heap_header), desired_size,
^^^^^^^^^^^
Warning 749: "/dsk1/src/kernel/sl/slheap.c", line 2339 # The cast from 'h
eap_header *' to 'heap_local *' is performed as a 'reinterpret_cast'. This opera
tion is non-portable and potentially unsafe.
local = HEAP_LOCAL(heap_header);
^^^^^^^^^^


Thanks in advance.

Regards,
Neel

[Dennis Handly]

>it's using the default namespace or std namespace, could you please explain a bit.

-AP uses the global namespace for the STL.
-AA uses namespace std.

>the diagnostic for the following warnings.

Which, the aCC6 ones for the aCC3 ones?

To get Warning 829, you may have to use +w but then you'll be sorry. :-)

Warning 749, there is none.
These two are the must likely warnings to be suppressed in aCC3.

Or did you want to fix them in aCC3??

[Neel2]

I am getting the above warning in aCC: HP ANSI C++ B3910B A.03.57.

Also, any suggestions to generalize or (remove the dependency) of the following code,i.e.

const o_double MAX = ::numeric_limits::max();

Since, its got failed on other platform with the following error:

g++ -I. -I./h -I../h -I../om/h -I../sm/h -O -c -D_REENTRANT -DVS_USE_64_CALLS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -fpic -Wall -o /dsk1/VOD_BUILD/kernel/7.0.1.4/Linux_64bit_rhe4.0/opt//o/typemgr.o /vobs/kernel/typemgr/typemgr.c
In file included from /vobs/kernel/typemgr/typemgr.c:16:
./h/typemgr_intern.h: In function `o_err tm_isValid(o_typeid, T)':
./h/typemgr_intern.h:139: error: `numeric_limits' undeclared (first use this function)
./h/typemgr_intern.h:139: error: (Each undeclared identifier is reported only once for each function it appears in.)
./h/typemgr_intern.h:139: error: expected primary-expression before '>' token
./h/typemgr_intern.h:139: error: `::max' has not been declared

Thanks in advance.

Neel

[Dennis Handly]

>I am getting the above warning in aCC A.03.57.

You can squash them like a bug with +W829,749.

Note that 829 is going to be errors in the next Standard so you should fix them all. You need to declare a_printf as taking a const char*.
For 749, you can add the reinterpret_cast. Note the types in the message must not be derived classes from each other.

>any suggestions to generalize or (remove the dependency) of the following code
const o_double MAX = ::numeric_limits::max();

You are going to have to use conditional compilation:
#if !defined(_HP_NAMESPACE_STD) && defined(__HP_aCC)
#define STD_NS
#else
#defined STD_NS std
#endif
const o_double MAX = STD_NS::numeric_limits::max();

[Neel2]

Hello Dennis,

I tried the following:

#if defined(__hpux)
#if !defined(_HP_NAMESPACE_STD)&&defined(__HP_aCC)
#defined STD_NS
#defined STD_NS std
#endif
const o_double MAX = STD_NS::numeric_limits::max();
#else /* defined(__hpux)*/
const o_double MAX = (std::numeric_limits::max)();
#endif /* __hpux */


The compilation throws an error for STD_NS not defined ;-(

Could you suggest me the right way?

Neel

[Dennis Handly]

>Could you suggest me the right way?

You lost the #else and added a whole extra level of #if. Use what I gave you, it should work for aC++ or any other compiler.

[Neel2]

Hello Dennis,

Thanks it works as it is.

Best regards,
Neel

[Dennis Handly]

>Thanks it works as it is.

If you have gotten the answers you wanted, please read the following about assigning points:
http://forums.itrc.hp.com/service/forums/helptips.do?#33

[Neel2]

Hello,

I got the following error:

/usr/lib/dld.sl: Unresolved symbol: __shlinit (code) from /build/HP-UX_32bit/opt/lib/libembed.sl

My conf:
% uname -a
HP-UX B.11.11 U 9000/800 109092009 unlimited-user license
% aCC -V
aCC: HP ANSI C++ B3910B A.03.57

Any pointers/suggestion will be helpful.

Thanks,
Neel

[Dennis Handly]

>I got the following error:
>dld.sl: Unresolved symbol: __shlinit (code)

You need to create your own thread so you can assign points. Especially for this different topic.