__
From: IBM Mainframe Discussion List on behalf of Bernd
Oppolzer
Sent: Wednesday, June 21, 2017 2:04 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: PL/I and C (was Re: Simple (?) C question)
Hi Frank,
1.) yes, the C area acquired by malloc must be freed by someone
2.) unfortunately,
regard.
Frank
From: IBM Mainframe Discussion List on behalf of
Bernd Oppolzer
Sent: Wednesday, June 21, 2017 2:04 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: PL/I and C (was Re: Simple (?) C question)
Hi Frank,
1.) yes, the C area acquired by malloc must be freed by someone
2.) unfortunately
viously NOT do this
for str1ptr.)
Side request... Could someone post the PL/I "JNI" copybook?
Thanks, Frank
From: Frank Swarbrick
Sent: Tuesday, June 20, 2017 9:47 AM
To: IBM Mainframe Discussion List
Subject: Re: Simple (?) C question
Thanks John. I
anks, Frank
From: Frank Swarbrick
Sent: Tuesday, June 20, 2017 9:47 AM
To: IBM Mainframe Discussion List
Subject: Re: Simple (?) C question
Thanks John. I know of no code that does this, nor do I intend to implement
any. What I was really trying to determine i
On Tue, 20 Jun 2017 16:37:56 -0700, retired mainframer wrote:
>Does MacOS run on any IBM mainframe?
>>
No, but I've used setvbuf() that I mentioned later in this thread to
accomplish this purpose on z/OS xlc. If xlc doesn't conform to POSIX
it ought to be APARable:
On Tue, 20 Jun 2017 09:44:02
Does MacOS run on any IBM mainframe?
> -Original Message-
> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
> Behalf Of Paul Gilmartin
> Sent: Tuesday, June 20, 2017 7:44 AM
> To: IBM-MAIN@LISTSERV.UA.EDU
> Subject: Re: Simple (?) C question
&
Some additional remarks below ...
Am 20.06.2017 um 22:56 schrieb Bernd Oppolzer:
I tried the program, too, using my local Watcom C compiler.
No problems, but I had to add some global definitions to make it run.
Looks like this:
#include
#include
#include
char *get_static_string(void) {
regard.
Thanks to everyone who answered.
Frank
From: IBM Mainframe Discussion List on
behalf of John McKown
Sent: Monday, June 19, 2017 7:59 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Simple (?) C question
On Mon, Jun 19, 2017 at 4:25 PM, Frank Swarbrick <
frank.swarbr...@o
It's thread safe in that sense that several processes
(LE enclaves) running in parallel each get their own
instance of the WSA, so there is no mixing of static
variables in this case.
Of course, if you use other variants of multi-threading
which don't involve separate (that is, parallel) LE encla
Am 20.06.2017 um 13:12 schrieb Don Poitras:
Not if you compile RENT. In that case the static is allocated in a separate
area rather than being inside the load module.
and: every invocation of the module from potentially parallel
LE enclaves (for example, when used inside a DB2 stored proc envir
PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Simple (?) C question
On Mon, Jun 19, 2017 at 4:25 PM, Frank Swarbrick <
frank.swarbr...@outlook.com> wrote:
I know there are at least a few C developers here, so I was wondering if
you could answer a question. Is the following valid C? (I
cKown
Sent: Monday, June 19, 2017 7:59 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Simple (?) C question
On Mon, Jun 19, 2017 at 4:25 PM, Frank Swarbrick <
frank.swarbr...@outlook.com> wrote:
> I know there are at least a few C developers here, so I was wondering if
> you could answe
On Mon, 19 Jun 2017 17:13:00 -0700, retired mainframer wrote:
>
>Probably unrelated to your real question but the format string passed to
>printf should also have a \n after the %s to insure the output is visible.
>
On MacOS, at least, buffers are flushed when the program exits, so the
output wil
That's not what I meant. It's not thread safe without locking. And even
if you're not multi-threaded it may be better practice to copy the
static C string into a buffer. Take strerror() for example. Once you've
got the error you either print it immediately or copy the message into a
buffer. str
Not if you compile RENT. In that case the static is allocated in a separate
area rather than being inside the load module.
In article <32db4b0b-1271-18b1-574c-9cb6a37a2...@gmail.com> you wrote:
> If the string can be mutated either by the client or the runtime
> returning by reference is not re-e
If the string can be mutated either by the client or the runtime
returning by reference is not re-entrant.
I would always prefer to use strings buffers:
int get_string(char * buf, size_t buflen);
Strings are s much easier in C++.
On 20/06/2017 9:59 AM, John McKown wrote:
On Mon, Jun 19,
On Mon, Jun 19, 2017 at 4:25 PM, Frank Swarbrick <
frank.swarbr...@outlook.com> wrote:
> I know there are at least a few C developers here, so I was wondering if
> you could answer a question. Is the following valid C? (I'm not asking if
> one should actually do it; only if its valid at all.)
>
t; Subject: Simple (?) C question
>
> I know there are at least a few C developers here, so I was wondering if
you could answer a
> question. Is the following valid C? (I'm not asking if one should
actually do it; only if its
> valid at all.)
> char *get_static_string(void) {
On Mon, 19 Jun 2017 21:25:50 +, Frank Swarbrick wrote:
>I know there are at least a few C developers here, so I was wondering if you
>could answer a question. Is the following valid C? (I'm not asking if one
>should actually do it; only if its valid at all.)
>char *get_static_string(void)
Looks good to me. Like Peter says, the function returns the pointer
correctly, and the compiler should put that string in a static memory
location instead of on the stack.
Now if you were to do something like this:
char * x;
printf("%s\n", get_static_string());
x = get_static_string();
first array member.
Peter
-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf
Of Frank Swarbrick
Sent: Monday, June 19, 2017 5:26 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Simple (?) C question
I know there are at least a few C developers here,
I know there are at least a few C developers here, so I was wondering if you
could answer a question. Is the following valid C? (I'm not asking if one
should actually do it; only if its valid at all.)
char *get_static_string(void) {
static char str[81] = "This is a statically allocated C st
On Fri, 30 Aug 2013 09:15:28 -0500, Mark Hammack wrote:
>I would like to be able to pass a string to the IBM C/C++ compiler to include
>in a program. I have tried every way I can think of to use the DEFINE()
>compiler option but can't make it work. This is what I would like to do:
>
>...
>//
also failed with messages you described.
Cheers
Michael
Von:Mark Hammack
An: IBM-MAIN@LISTSERV.UA.EDU
Datum: 2013-08-30 16:15
Betreff:C question (IBM specific)
Gesendet von: IBM Mainframe Discussion List
I would like to be able to pass a string to the IBM C/C++ compiler
Hi
In batch I'm using like this:
//COMPILE EXEC PGM=CCNDRVR,REGION=&CREGSIZ,
//PARM=('&CRUN/&CPARM OPTFILE(DD:OPTFILE)')
//STEPLIB DD DSN=&LIBPRFX..SCEERUN,DISP=SHR
// DD DSN=CBC.SCCNCMP,DISP=SHR
//USERLIB DD DISP=SHR,DSN=ESA.PRJ.CBTEXP.HPP
//SYSMSGS DD DUMMY,DSN=&LNGPRFX..S
I would like to be able to pass a string to the IBM C/C++ compiler to include
in a program. I have tried every way I can think of to use the DEFINE()
compiler option but can't make it work. This is what I would like to do:
...
// EXEC PGM=CCNDRVR,PARM=('...DEFINE(MYSTRING=TEST)')
...
In the
http://www.identityforge.com/
From: retired mainframer
To: IBM-MAIN@LISTSERV.UA.EDU
Sent: Saturday, May 11, 2013 3:25 PM
Subject: Re: C question -- not sure where to ask it
What is the character between the two single quote marks in the first call
to
On Sat, 11 May 2013 12:25:13 -0700, retired mainframer wrote:
>What is the character between the two single quote marks in the first call
>to memset? My email shows no character (the quotes are adjacent) and C does
>not support an empty character constant. Perchance did you have a hex 00
>there?
ays return 0 whenever it executes and is therefore
useless.
:>: -Original Message-
:>: From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
:>: Behalf Of Scott Ford
:>: Sent: Friday, May 10, 2013 1:04 PM
:>: To: IBM-MAIN@LISTSERV.UA.EDU
:>: Subject: C qu
Bill,
Your right ...a big Ty
Scott ford
www.identityforge.com
from my IPAD
'Infinite wisdom through infinite means'
On May 10, 2013, at 10:38 PM, Bill Godfrey wrote:
> On Fri, 10 May 2013 13:04:12 -0700, Scott Ford wrote:
>
>> All:
>>
>> I am writing a routing and want to use type=memory f
On Fri, 10 May 2013 13:04:12 -0700, Scott Ford wrote:
>All:
>
>I am writing a routing and want to use type=memory files in C and this is what
>i tried...
These 3 lines:
memset(buffout,'',sizeof(buffout));
strcpy(buffout,"\n");
fwrite(buffout,1,80,fobj);
will write "\n" followed by
All:
I am writing a routing and want to use type=memory files in C and this is what
i tried...
char buffer[80];
char buffout[80];
char lineout[121];
int rctr;
int wctr;
fobj = fopen("file.data","w,type=memory");
if(fobj != NULL)
printf("FOBJ File Open at: %s\n",time_of_d
On Thu, Apr 25, 2013 at 2:26 AM, Bernd Oppolzer
wrote:
> It's easy, because you're always sure that the line will be terminated by a
> hex zero which will throw you out of the loops.
And that is how the buffer overflow bugs are created. Need to check
for end of buffer.
--
Mike A Schwab, Spring
When dealing with such problems, I always ended up coding very
simple loops looking for the start and end of the keywords etc. using
char pointers, then moving the data out of the line buffer and doing
the compare, like the following
char *cp1;
char *cp2;
int l;
char bufx [MAXL_KEYWORD];
cp1 = l
gt; http://www.boost.org/doc/libs/1_53_0/libs/tokenizer/
>
>> Charles
>>
>> -Original Message-
>> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
>> Behalf Of Scott Ford
>> Sent: Monday, April 22, 2013 3:21 PM
>> To: IBM-MA
/tokenizer/
Charles
-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
Behalf Of Scott Ford
Sent: Monday, April 22, 2013 3:21 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: C question
All:
I need some C help ..
I am reading a file and need to
PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: C question
All:
I need some C help ..
I am reading a file and need to Tokenize the file so i can examine the :
Parm = Value ..
I have tried strtok and works to a certain degree my problem comes when I
tried to strcmp the value to chaeck validity
I'm not quite sure what you're requirement is but if all you want is a
ini file parser (something that parses key=value pairs) there are plenty
of good ones around http://code.google.com/p/inih/.
On 23/04/2013 6:21 AM, Scott Ford wrote:
All:
I need some C help ..
I am reading a file and
Show some code. Describe the problems in reasonable detail.
> -Original Message-
> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU]
> On Behalf Of Scott Ford
> Sent: Monday, April 22, 2013 3:21 PM
> To: IBM-MAIN@LISTSERV.UA.EDU
> Subject: C quest
Be sure to set the input string name in the parmlist to NULL on the second
through last invocation of strtok; be sure your delimiters make sense for
the invocation. You can change delimiters, if needed, on each invocation.
On Mon, Apr 22, 2013 at 3:21 PM, Scott Ford wrote:
> All:
>
> I need s
All:
I need some C help ..
I am reading a file and need to Tokenize the file so i can examine the :
Parm = Value ..
I have tried strtok and works to a certain degree my problem comes when
I tried to strcmp the value to chaeck validity ...
Can some give this old man some pointers
Regard
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