C/C++

New Topic

93 topics

Topics

Replies

Views

Last post

problem linking c++ when compiled with 32-bit pointers

Last post by martinv « Wed Nov 06, 2024 8:56 am
Replies: 8
by joukj » Thu Sep 12, 2024 2:43 am

Hi all,

I use the latest field-test C++ compiler on OpenVMS 9.2-2. I encountered problems when linking a program which was compiled using 32-bit...

8 Replies

1787 Views

Last post by martinv
Wed Nov 06, 2024 8:56 am
poll unable to access stdin on VMS

Last post by greg@tssolutions.com.au « Tue Oct 15, 2024 10:38 pm
Replies: 7
by greg@tssolutions.com.au » Sun Aug 04, 2024 11:40 pm

The following works fine on Linux but not VMS
VSI C x86-64 V7.5-009 (GEM 50XBR) on OpenVMS x86_64 V9.2-2

#include
#include
#include
#include...

7 Replies

3504 Views

Last post by greg@tssolutions.com.au
Tue Oct 15, 2024 10:38 pm
does cc for x86 support asm ?

Last post by jreagan « Tue Oct 15, 2024 12:05 am
Replies: 19
by crgnz » Sat May 18, 2024 6:00 am
1

2
Sorry if this is more of a porting from unix question rather than a specific DEC C for x86 query but I'll ask anyway:

I'm trying to port this...
19 Replies

14777 Views

Last post by jreagan
Tue Oct 15, 2024 12:05 am
CXX compiler abort while building xpdf

Last post by jreagan « Wed Aug 21, 2024 10:14 am
Replies: 4
by mberryman » Tue Aug 13, 2024 11:12 am

While trying to build xpdf v3.04 I get the following error (same issue on both V9.2-2 and E9.2-3). There are no errors when building on Alpha or...

4 Replies

1762 Views

Last post by jreagan
Wed Aug 21, 2024 10:14 am
function argument declared volatile double broken

Last post by arne_v « Wed Aug 07, 2024 3:34 pm
Replies: 8
by jonesd » Thu Jun 20, 2024 7:32 pm

Some code I'm using declares a function argument with the volatile type attribute, for reasons according to the comments:

/*
** Do one step of the...

8 Replies

3664 Views

Last post by arne_v
Wed Aug 07, 2024 3:34 pm
getname() for a template device

Last post by pustovetov « Mon Aug 05, 2024 2:26 am
Replies: 1
by greg@tssolutions.com.au » Mon Aug 05, 2024 12:24 am

example
fd=open( MPA0: ,O_RDWR,0);
getname(fd, devname);
devname wil have MPA0: not the created device name.

Would be nice if it returned the...

1 Replies

1025 Views

Last post by pustovetov
Mon Aug 05, 2024 2:26 am
x86 issues with the STL vector handling

Last post by arne_v « Thu Jul 18, 2024 2:59 pm
Replies: 11
by brianreiter » Mon Jul 15, 2024 5:04 am
1

2
Not sure of the best location for this, but:

We have an app which is a mix of Pascal and C++ code. The C++ code was originally running on a PC but...
11 Replies

3261 Views

Last post by arne_v
Thu Jul 18, 2024 2:59 pm
-LOADER-E-BADSVINDX when C++ compiled with /pointer=32

Last post by brianreiter « Thu Jun 20, 2024 7:40 am
Replies: 3
by brianreiter » Wed Jun 19, 2024 10:56 am

On x86 OpenVMS I've been dealing with issues between C++ 32 and 64 bit pointers. The code we have a mishmash of C, C++ and Pascal (largely Pascal)....

3 Replies

2179 Views

Last post by brianreiter
Thu Jun 20, 2024 7:40 am
Status of POSIX semaphores and shared memory

Last post by pustovetov « Mon Jun 17, 2024 7:42 am
Replies: 5
by saprykin » Thu May 16, 2024 6:17 pm

A while ago (well, like 8 years :) ), there was a discussion about POSIX semaphores in OpenVMS Alpha. It seems to be that some progress to fix the...

5 Replies

3890 Views

Last post by pustovetov
Mon Jun 17, 2024 7:42 am
sigsetjmp/siglongjmp and open file

Last post by theoldman « Fri Jun 07, 2024 6:12 pm
Replies: 11
by theoldman » Wed May 22, 2024 2:43 pm
1

2
Overview (test program attached):

1. sigsetjmp(jmpbuf,1);
2. fopen a file
3. signal(SIGALRM,TOSTMER_TRAP);
4. copy jmpbuf to static so TOSTMER_TRAP...
11 Replies

6628 Views

Last post by theoldman
Fri Jun 07, 2024 6:12 pm
Some C++/RTL questions

Last post by jreagan « Wed Jun 05, 2024 12:08 pm
Replies: 14
by mberryman » Wed Dec 27, 2023 12:51 pm
1

2
In working on the MariaDB port, I have encountered the following issues:

The mkostemp function is documented as accepting additional flags for the...
14 Replies

12735 Views

Last post by jreagan
Wed Jun 05, 2024 12:08 pm
Missing "defined" in stdlib.h on IA64?

Last post by sms « Wed May 22, 2024 6:53 pm
Replies: 2
by sms » Wed May 22, 2024 1:21 pm

ITS $ cc /version
VSI C V7.4-001 on OpenVMS IA64 V8.4-2L3

OpenSSL 3.3.0 build failed. Simple test case:

ITS $ type stdlib_xoe.c
#define...

2 Replies

13819 Views

Last post by sms
Wed May 22, 2024 6:53 pm
XML files generation

Last post by jonebanes « Sun May 19, 2024 9:35 pm
Replies: 6
by jonebanes » Sun May 19, 2024 8:58 am

I have the need to produce an XML formatted file from what is now a sequential file produced by a COBOL program. I did some cursory search and with...

6 Replies

3158 Views

Last post by jonebanes
Sun May 19, 2024 9:35 pm
lib$establish() implemented in C++ x86

Last post by jreagan « Thu May 16, 2024 10:45 am
Replies: 1
by renek » Mon May 13, 2024 7:22 am

In the release notes of the x86 C++ compiler it says: The builtin function lib$establish() is not implemented in clang.
Will it be implemented in the...

1 Replies

2485 Views

Last post by jreagan
Thu May 16, 2024 10:45 am
Inquiry to next Clang update.

Last post by soutbarr « Sat Apr 06, 2024 8:35 am
Replies: 4
by soutbarr » Mon Mar 18, 2024 9:36 am

C++23 is fast approaching. Is there any clue when vsi Clang will catch up to the standard?

4 Replies

4686 Views

Last post by soutbarr
Sat Apr 06, 2024 8:35 am
x86_64 C++ regression (UDFSYM) between Build dates 07-31-2023 and 11-28-2023?

Last post by sms « Fri Apr 05, 2024 2:52 pm
Replies: 4
by sms » Thu Apr 04, 2024 2:49 pm

Source kit:

My notes say that this all worked on VMS V9.2-1 with an older
compiler: clang version 10.0.1 (Build date: 07-31-2023). It still...

4 Replies

2888 Views

Last post by sms
Fri Apr 05, 2024 2:52 pm
LibXML2 issue

Last post by hb « Thu Mar 28, 2024 7:38 pm
Replies: 4
by rodprince » Thu Mar 28, 2024 11:24 am

This issue exists on HPE I64 C Compiler and VSI x86 C Compiler. I have to assume its actually working as intended and my limited C skills are not...

4 Replies

3625 Views

Last post by hb
Thu Mar 28, 2024 7:38 pm
CXX on X86 : LLVM ERROR: out of memory

Last post by joukj « Wed Mar 20, 2024 11:23 am
Replies: 12
by joukj » Tue Sep 12, 2023 7:17 am
1

2
Hi I get the following:

rumba-jj) cxx/vers
clang version 10.0.1 (git@bitbucket.org:vms_software/llvm-10.0.1.git 1944c289616...
12 Replies

31544 Views

Last post by joukj
Wed Mar 20, 2024 11:23 am
C++ not working

Last post by sms « Tue Mar 19, 2024 9:56 pm
Replies: 6
by thorleif » Tue Mar 19, 2024 10:30 am

I have installed c++

cxx demo.cxx
%DCL-W-IVVERB, unrecognized command verb - check validity and spelling
\CXX\

Thanks
Thorleifur

6 Replies

4069 Views

Last post by sms
Tue Mar 19, 2024 9:56 pm
boost::lexical_cast

Last post by joukj « Mon Mar 18, 2024 4:16 am
Replies: 3
by ofm » Mon Sep 13, 2021 6:08 am

Hi,
This doesn't compile,

#define __USE_STD_IOSTREAM
#include
#include
int main(int argc, char** argv) {
std::string tmp = boost::lexical_cast...

3 Replies

11021 Views

Last post by joukj
Mon Mar 18, 2024 4:16 am
Help with mixing C and C++ code

Last post by hb « Sun Mar 17, 2024 4:52 pm
Replies: 14
by mberryman » Tue Nov 07, 2023 2:42 am
1

2
Ok, I'm stumped. What is the syntax that would allow a C++ routine to call a C routine that is using 32-bit pointers? The following illustrates the...
14 Replies

18191 Views

Last post by hb
Sun Mar 17, 2024 4:52 pm
unexpected crash in clang+cc program

Last post by joukj « Fri Feb 09, 2024 10:31 am
Replies: 6
by joukj » Wed Feb 07, 2024 7:17 am

Hi all,

I'm have a problem with something that looks to me as a random error (or do
I miss something. It is in code compiled by clang calling code...

6 Replies

4196 Views

Last post by joukj
Fri Feb 09, 2024 10:31 am
Doc error RTL Library (LIB$) Manual

Last post by dgordon « Mon Jan 22, 2024 9:08 am
Replies: 2
by mjvms27 » Thu Jan 18, 2024 12:51 pm

There may be a minor documentation eror on page 257 of

In the table of Condition Values Returned for LIB$GET_LOGICAL, one of the values listed is...

2 Replies

3421 Views

Last post by dgordon
Mon Jan 22, 2024 9:08 am
C on X86 : Static procedures can be set as globals

Last post by levitte « Tue Jan 02, 2024 7:09 am
Replies: 15
by joukj » Fri Dec 08, 2023 7:49 am
1

2
Hi all,

Consider the following:

rumba-jj) cc/vers
VSI C x86-64 X7.4-843 (GEM 50XB9) on OpenVMS x86_64 V9.2-1
rumba-jj) ty test1.c
typedef int...
15 Replies

53782 Views

Last post by levitte
Tue Jan 02, 2024 7:09 am
C on X86 : Instruction does not dominate all uses!

Last post by joukj « Tue Jan 02, 2024 3:46 am
Replies: 2
by joukj » Fri Jun 30, 2023 10:09 am

I the following when using the C-compiler. It seems to be an informational, since the .obj file seems OK. Can someone explain to me what the compiler...

2 Replies

6148 Views

Last post by joukj
Tue Jan 02, 2024 3:46 am

New Topic

93 topics

Return to Board Index

Forum permissions

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum