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by: Mike Krasnik |
last post by:
Hello all,
I've been messing with checking memory leaks last time, and it looks
like some of the memory was not freed due to the fact
"library's default allocators keep free memory in a pool for later reuse,
rather than returning it to the OS."
In C it can be easily avoided using function
extern "C" void __libc_freeres(void);
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by: The Directive |
last post by:
I can't understand why in this folling example the message
"Base.Draw()" is printed. Shouldn't "Derive.Draw" be printed because
of polymorphism? How can I rewrite this example using a vector to
achieve polymorphism. Help!!! I'm very confused.
//Base class.
class Base
{
public:
Base()
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by: simon |
last post by:
Hi,
First some background.
I have a structure,
struct sFileData
{
char*sSomeString1;
char*sSomeString2;
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by: thangamani.vaiyapuri |
last post by:
Hi,
The below code snippet shows memory issues in Vector's push_back
method.
#include <iostream.h>
#include <vector>
class Base
{
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by: vsgdp |
last post by:
On Page 67 of Effective STL, Meyers writes about resize: "If n is smaller
than the current size, elements at the end of the container will be
destroyed."
What does "destroyed" mean? It seems to me that if n is smaller than the
current size, simple adjust the internal size counter to n and be done.
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by: kathy |
last post by:
I am using std::vector in my program:
func()
{
std::vector <CMyClass *> vpMyClass;
vpMyClass.push_back(new CMyClass());
vpMyClass.push_back(new CMyClass());
vpMyClass.push_back(new CMyClass());
//???? Required ??????????????//
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by: ma740988 |
last post by:
I'm perusing source that quite frankly looks like a disaster in the
making. This is a case though where return by reference gets muddled
with my understand based on readings.
struct bar {
double variable;
void init() { memset ( this, 0, sizeof ( bar ) ); }
bar() { init(); }
bool operator <( bar & f ) const
{ return ( variable > f.variable ) ; }
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by: andrey.vul |
last post by:
code:
#include <iostream>
#include <vector>
#include <stdexcept>
#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <cstring>
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by: jacek.dziedzic |
last post by:
Hi!
I need to be able to track memory usage in a medium-sized
application I'm developing. The only significant (memory-wise) non-
local objects are of two types -- std::vector<and of a custom class
simple_vector<that is a hand-rolled substitute for array<>. With the
latter I have code that tracks all allocations and destructions, so I
can account for all the memory.
The question is about std::vector<-- how can I track memory usage
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: jinu1996 |
last post by:
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
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