Thank you very much Hugo for your answer.
Yesterday I was out of my office and I couldn't test the advise you
gave me. Today I'll do it.
I have never used C, so I have to ask.
For creating an executable file with your code, I copied and pasted
the text into a text file, and then tried from the command line:
$ gcc memorytest.c -o memorytes.out
and I got the following warning:
memorytest.c: In function ‘main’:
memorytest.c:5: warning: return type of ‘main’ is not ‘int’
Is this important ?
After your answer, I will execute this program just before the line
that rises the error message, and I'll let you know today.
Thank you very much Hugo,
Cheers,
--
===============================
Linux user #454569 -- Ubuntu user #17469
===============================
2011/1/18 Hugo Mildenberger <hugo.mildenber...@web.de>:
> Hello Mauricio,
>
> Today I lost several messages from r-help and also forgot to
> include you in the reply-to address list previously. I'm curious what the test
> program I already proposed in my answer to r-help reveals. I modified it
> a bit to force the operating system to actually provide the memory. On
> an old 32 bit notebook with 512 MB of physical RAM having X running
> in parallel, this test program takes about a minute or so, but eventually
> succeeds.
>
> --- snip ---
>
> #include <stdlib.h>
> #include <stdio.h>
> #include <string.h>
>
> void main() {
> const size_t size = 1000000000LU;
> fprintf(stderr,"Trying to allocate %lu bytes ... ",(unsigned long)size);
> fflush(stderr);
> void *p = malloc(size);
> if ( p ) {
> fprintf(stderr,"success. Now trying to commit memory ... ");
> fflush(stderr);
> memset(p,0,size);
> fprintf(stderr,"succeeded.\n");
> }else {
> fprintf(stderr,"allocation of %lu bytes failed:%m\n",(unsigned long)
> size);
> }
> }
>
> --- snip ---
>
> put this into a file named, say, "tmalloc.c" and compile it using
>
> gcc tmalloc.c -o tmalloc
>
>
> Best regards
>
> Hugo Mildenberger
>
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