Re: memory deallocation with delete

Date: Fri, 18 May 2012 19:07:48 -0400
From: mark.s.waterbury@xxxxxxxxxxxxx
To: c400-l@xxxxxxxxxxxx
Subject: Re: [C400-L] memory deallocation with delete

Victor:

Carefully study this page in the IBM ILE C/C++ Programmer's Gude:


http://publib.boulder.ibm.com/infocenter/iadthelp/v7r5/index.jsp?topic=/com.ibm.etools.iseries.pgmgd.doc/cpprog605.htm

HTH,

Mark S. Waterbury

> On 5/18/2012 3:55 PM, Victor Gonzalez wrote:

hello everyone,
Trying to debug a memory leak in a program, written in C++ and compiled with ILE C++ compiler, i found an odd behavior with the temporary memory allocation in the AS400.when i run the following piece of code:
int main(){
char *test;

sleep(10);

test = new char[20000000]; for(int i = 0; i< 20000000; i++) {
test[i] = 'a'; }
sleep(10);
delete [] test; test = NULL; //q->PrintElements();
sleep(5);
}
i found that the temporary storage used is not released after the calling "delete". The temporary storage used i use, is the one that could be seen with the command DSPJOBD
In other test's if found that after allocating other kind of objects, calling the delete operator immediately release the memory previously allocated.
For compilation i use STDMDL *teraspace. The rest of the options are the default
Any "enlightenment" about this behavior will be welcome
Thanks in advance.

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