Re: #PRAGMA - C# Discussion Boards

Re: #PRAGMA

RobCroll30-Mar-12 14:24

RobCroll

30-Mar-12 14:24

Here is the documentation #pragma warning (C# Reference)[^]

"You get that on the big jobs."

Re: #PRAGMA

KUNWAR99930-Mar-12 22:23

KUNWAR999

30-Mar-12 22:23

its taking more execution time than sequential code.. any sol?? Frown | :(

Re: #PRAGMA

Richard MacCutchan30-Mar-12 23:26

Richard MacCutchan

30-Mar-12 23:26

That is not possible; #pragma is a compiler directive and has nothing to do with execution speed.

Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman

Re: #PRAGMA

KUNWAR99930-Mar-12 23:39

KUNWAR999

30-Mar-12 23:39

but i want to reduce the execution time of a loop by making it parllel...

for(int i=0;i<100;i++)
{
Console.WriteLine(i);
}
thatwhy i used pragma directive..
# prgma omp parllel
for(int i=0;i<100;i++)
{
Console.WriteLine(i);
}
but its increse the time instead of reducing.. Frown | :(

any sol for this??

Re: #PRAGMA

Richard MacCutchan31-Mar-12 0:03

Richard MacCutchan

31-Mar-12 0:03

This has nothing to do with your original question, and I have already answered with a suggestion here[^].

KUNWAR999 wrote:
# prgma omp parllel

What is this supposed to mean?

Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman

Re: #PRAGMA

Luc Pattyn31-Mar-12 3:49

Luc Pattyn

31-Mar-12 3:49

Here[^] you go. Warning: it is a different world altogether.

Smile | :)

Luc Pattyn [My Articles] Nil Volentibus Arduum

Re: #PRAGMA

Richard MacCutchan31-Mar-12 4:18

Richard MacCutchan

31-Mar-12 4:18

Yes, I did discover that in the C++ compiler. My question was to get OP to explain what he/she thought it was, in terms of C#.

Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman

Re: #PRAGMA

Pete O'Hanlon31-Mar-12 4:03

Pete O'Hanlon

31-Mar-12 4:03

A few points. That pragma is for C/C++. If you want to have the sequence in order, you shouldn't try to turn it parallel as there is no guarantee of order of execution in parallel processing. If this isn't an issue, why not use the Task Parallel Library.

*pre-emptive celebratory nipple tassle jiggle* - Sean Ewington

"Mind bleach! Send me mind bleach!" - Nagy Vilmos

My blog | My articles | MoXAML PowerToys | Mole 2010 - debugging made easier - my favourite utility

Re: #PRAGMA

harold aptroot31-Mar-12 4:03

harold aptroot

31-Mar-12 4:03

You can't, so there is no answer to "how". The standard C# compiler does not support OpenMP.

Change the packet IP (source or destination) with Pcap.net

falukky30-Mar-12 1:10

falukky

30-Mar-12 1:10

i am using Pcap.net to send packets using send buffer with Wireshark file (pcap extension) and i want to do some packet manipulation e.g change the packet IP, but after send the packet again the packet looks corrupt with checksum bad and malformed TCP

// Allocate a send buffer
using (PacketSendBuffer sendBuffer = new PacketSendBuffer((uint)capLength))
{
    // Fill the buffer with the packets from the file
    int numPackets = 0;
    Packet packet;
    while (inputCommunicator.ReceivePacket(out packet) == PacketCommunicatorReceiveResult.Ok)
    {
        //sendBuffer.Enqueue(packet);
        IpV4Layer ipLayer = (IpV4Layer)packet.Ethernet.IpV4.ExtractLayer();
        EthernetLayer ethernet = (EthernetLayer)packet.Ethernet.ExtractLayer();
        var payload = packet.Ethernet.Payload.ExtractLayer();
        IpV4Address newIpv4 = new IpV4Address("17.18.19.20");
        ipLayer.Destination = newIpv4;
        Packet newPacket = PacketBuilder.Build(DateTime.Now, ethernet, ipLayer, payload);
        sendBuffer.Enqueue(newPacket);
        ++numPackets;
    }

    outputCommunicator.Transmit(sendBuffer, isSync); //Transmit the queue
}

Re: Change the packet IP (source or destination) with Pcap.net

Richard Andrew x6430-Mar-12 4:42

Richard Andrew x64

30-Mar-12 4:42

And your question is?

The difficult we do right away...
...the impossible takes slightly longer.

Re: Change the packet IP (source or destination) with Pcap.net

falukky30-Mar-12 5:03

falukky

30-Mar-12 5:03

i have try something that i think is correct but in the line sendBuffer.Enqueue(newPacket) error received: Failed enqueueing to SendQueue

// Allocate a send buffer
using (PacketSendBuffer sendBuffer = new PacketSendBuffer((uint)capLength))
{
    // Fill the buffer with the packets from the file
    int numPackets = 0;
    Packet packet;
    while (inputCommunicator.ReceivePacket(out packet) == PacketCommunicatorReceiveResult.Ok)
    {
        //sendBuffer.Enqueue(packet);
        IpV4Layer ipLayer = (IpV4Layer)packet.Ethernet.IpV4.ExtractLayer();
        ipLayer.Destination = new IpV4Address("11.12.13.14");
        EthernetLayer ethernet = (EthernetLayer)packet.Ethernet.ExtractLayer();
        PayloadLayer payload = (PayloadLayer)packet.Ethernet.Payload.ExtractLayer();
        Packet newPacket = PacketBuilder.Build(DateTime.Now, ethernet, ipLayer, ipLayer, payload);
        sendBuffer.Enqueue(newPacket);
        ++numPackets;
    }

    outputCommunicator.Transmit(sendBuffer, isSync); //Transmit the queue
}

Re: Change the packet IP (source or destination) with Pcap.net

Richard Andrew x6430-Mar-12 5:08

Richard Andrew x64

30-Mar-12 5:08

Have you tried the PCap site? Don't they have a support forum?

The difficult we do right away...
...the impossible takes slightly longer.

Re: Change the packet IP (source or destination) with Pcap.net

falukky30-Mar-12 5:22

falukky

30-Mar-12 5:22

yes they have but the forum not so effective (lack of users)

digit roundoff

Member 823360130-Mar-12 0:46

Member 8233601

30-Mar-12 0:46

i have a float type of variable i.e float t1=200.36 and t2=300.62. now i want to roundoff these two variables to their nearest degit.

I want to show the information like this:
t1=200.36 roundoff=-0.36 total=200
t2=300.62 roundoff=+0.38 total=301

Re: digit roundoff

V.30-Mar-12 1:05

30-Mar-12 1:05

Look here:
Floor[^]
Ceiling[^]
Round[^]

Then you can take the difference of the original with the rounded value.
Hope this helps.

Re: digit roundoff

JF201530-Mar-12 1:28

JF2015

30-Mar-12 1:28

See this code to get the idea:

double t1 = 200.36;
double t2 = 300.62;
int t11 = (int)Math.Round(t1, 0);
int t21 = (int)Math.Round(t2, 0);
MessageBox.Show("t1=" + t1.ToString() + " roundoff=" + (t11 - t1).ToString("0.00") + " total=" + Math.Round(t1, 0).ToString());
MessageBox.Show("t2=" + t2.ToString() + " roundoff=" + (t21 - t2).ToString("0.00") + " total=" + Math.Round(t2, 0).ToString());

Re: digit roundoff

ProEnggSoft30-Mar-12 3:36

ProEnggSoft

30-Mar-12 3:36

I want to add the following

What is required when the number is half i.e. 200.5. Whether 200 or 201?
By default Math.Round follows
MidpointRounding.ToEven enumeration value.

double number = 200.5;
Console.WriteLine (Math.Round(number,0));
Console.WriteLine (Math.Round(number,0, MidpointRounding.AwayFromZero));
double number2 = 201.5;
Console.WriteLine (Math.Round(number2,0));
Console.WriteLine (Math.Round(number2,0, MidpointRounding.AwayFromZero));
//The output from the above code will be
//200
//201
//202
//202

So, if the next higher number is required always, when the value is half way, then
MidpointRounding.AwayFromZero is to be used.

modified 30-Mar-12 10:15am.

Re: digit roundoff

KUNWAR99930-Mar-12 7:17

KUNWAR999

30-Mar-12 7:17

Try this code.. :

double g = [any no];//should be of double
double L = Math.Floor(g);
if (g-L<0.5)
{
k = (int)(L);
}
else
{
k = (int)(L + 1);
}

now k have ur nearest integer.. Smile | :)

modifyable html control

Ramkithepower30-Mar-12 0:16

Ramkithepower

30-Mar-12 0:16

Hi All,

I am building a windows tool for which I require a text area control where i can format the text such as color, size etc. but the formatted text should be readable as HTML in the codebehind.

Is there any such tool?

Jack Sparrow
--------------------------------------
Defeat is not the worst of failures. Not to have tried is the true failure.

Re: modifyable html control

Eddy Vluggen30-Mar-12 8:02

Eddy Vluggen

30-Mar-12 8:02

Ramkithepower wrote:
Is there any such tool?

There should be some HTML-editor controls here on CodeProject Smile | :)

Bastard Programmer from Hell Suspicious | :suss:

Check for empty DateTimeInput in c#

nhanlaptrinh29-Mar-12 20:01

nhanlaptrinh

29-Mar-12 20:01

I have a control DateTimeInput, when I run up, then assign the current date by default, but when his days in DateTimeInput clrear then how do you know to enter the date again? I checked the way DateTimeInput.Text == "" or DateTimeInput.Value.ToString () == "" but it does not understand. Thanks to all who know you helped with.

Re: Check for empty DateTimeInput in c#

kiran605329-Mar-12 20:10

kiran6053

29-Mar-12 20:10

i can give two ways

1--->u can use directly system date time

2---->if u use any control for date and time see the database table variable ...if it is given as date then check the properties of u r control with code....

I hope it will help u????????///

Re: Check for empty DateTimeInput in c#

OriginalGriff29-Mar-12 22:39

OriginalGriff

29-Mar-12 22:39

What kind of control is it?

Ideological Purity is no substitute for being able to stick your thumb down a pipe to stop the water

Re: Check for empty DateTimeInput in c#

nhanlaptrinh30-Mar-12 1:25

nhanlaptrinh

30-Mar-12 1:25

datetimeinput of dotnetbar.

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