C++ :: How To Calculate Processing Time In Milliseconds

Feb 5, 2013

I want to calculate processing time in milliseconds as most of function I found give me in second. I am new user to C++, the code will be running under linux.

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C++ :: How To Get Uniform Increment Of Milliseconds - System Time

Jul 31, 2013

I am a bit lost as I am new to C++ and programming in general.

#include <stdlib.h>
#include <stdio.h>
#include <fstream>
#include <iostream>
#include <windows.h>
using namespace std;
int main() {
ofstream myfile;

[Code] ....

msi
1247
1248
1249
1250
1251
285216ms delay
2853
2854
2855
2856

in the csv file, as above, after every 12 to 13 increment of i there is a skip of 15ms to 16ms. I do not understand why the ms is not a uniform increment. Is there another way I can get a uniform increment of ms?

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C/C++ :: Calculating CPU Processing Time?

Jun 13, 2014

I have a problem with calculating the CPUtime. I am using CPLEX to solve linear programming with 3 diferent algorithms.

1-primal Simplex
2-Dual Simplex
3-Barrier Method.

When I am trying to use Barrier method, my clock does not give me a right processing time. I don't have any problem with the other two methods. The value I am getting from ticks2 is 0 when I am using Barrier solver unlike the two other methods that I am getting some small values (ticks1 is fine). Using time_t ticks1 , ticks2 and time(&ticks1) and finally difftime(ticks1,ticks2) also gives me an integer number which is not precise enough. I need a way to compute cputime with accuracy of at least 2 decimals.

clock_t ticks1,ticks2;
double solvingtime
if (solver.primopt==1){
ticks1=clock();
status=CPXprimopt(myEnv, myLP);
ticks2=clock();

[code]....

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Visual C++ :: Processing Time For PVOID Into Byte Array Conversion

Mar 12, 2013

In my project I'm using PVOID pointer to store real time data. After getting this data I will convert the data into byte array, like below

Code:
byte *bPoint = NULL;
PVOID pvData;
byte TempArr[1024];
bPoint = (byte*) pvData;
for(int i=0;i<1024;i++)
TempArr[i] = (byte) (*bPoint + i);

Processing time for the above code takes 9500 to 9900 microseconds (Used QueryPerformanceCounter).

Code:
TempArr[0] = ((BYTE*) pvData) [0];

This code takes 1100 to 1200 microseconds. My doubt is, The processing time of PVOID data into byte array conversion takes time like above? Or any other easy way(PVOID data into byte array conversion) to reduce the processing time?

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C :: Program To Calculate Difference In Time?

Nov 6, 2014

i writing a code which will calculate the difference between time_in and time out. Can i use a 2 dimensional array for example

int time_in[hours][minutes]
int time_out[hours[minutes]

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C :: Program Which Calculate Time Difference Between Two Daytime

Jul 4, 2013

I'm challenged to write a program which calculates the time difference between two daytime.

compiler doesn't give an error, yet the warning: "format '%d' expects argument of type 'int *', but argument 3 has type 'int' [- Wformat]" for lines 24 and 26

However, by entering the first time the program crashes anyway. so I assume I do really need some pointer to make it read from the console can you see where my problem is?

Code:

#include <stdio.h>
#include <stdlib.h>
typedef struct {
int Second;
int Minute;
int Hour;
}Time;

[Code]...

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C++ :: How To Calculate Time And Space Complexity Of Algorithm

Jan 25, 2015

define the time and space complexity of an algorithm and about what can i do when the time and space complexity are given and i should write the code corresponding to the restrictions , which i find very difficult.

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C/C++ :: How To Calculate NTP Timestamp To Unix Epoch Time

Mar 18, 2015

I have been trying for several months to create a simple SNTP single Client/Server based on RFC5905. Finally I manage to make it work at least I think it works correctly, but when I tried to test my code against a real NTP server (e.g. 0.se.pool.ntp.org:123) the timestamps that I am receiving need to be recalculated. I have tried several different approaches but no matter for 3 days now but no matter what I tried nothing yet.

The problem that I am having in not so much programming error is more about knowing how the NTP server operates.

How to convert the NTP timestamp to Unix epoch timestamp?

Syntax to execute the Server e.g. ./server 127.0.0.1:5000 and Client e.g. ./client 127.0.0.1:5000

Syntax to execute the Client against a real NTP server e.g. ./client 0.se.pool.ntp.org:123

Sample of working code Client:

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>

[code]....

Sample of printed output when I use Server and Client.

Reference Identifier 0 LOCL
Reference Timestamp 0.0 1426637081.3564398733
Originate Timestamp 1426637087.3570333925 1426637087.3570333925
Receive Timestamp 1426637087.3570334078 1426637087.3570334003
Transmit Timestamp 1426637087.3570333925 1426637087.3570334046

Sample of printed output when I am probing a real NTP server (e.g. 0.se.pool.ntp.org:123).

Reference Identifier 0 $
Reference Timestamp 0.0 3879449560.3503094062
Originate Timestamp 1426637090.3573978972 1426637090.3573978972
Receive Timestamp 1426637090.3573992772 2722083800.781009125
Transmit Timestamp 1426637090.3573978972 2722083800.937312997

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C++ :: Parabolic Shot Program - Calculate And Graph Time Vs Distance

Nov 13, 2013

It is supposed to calculate and graph time vs. distance. The problem I have is graphing, if I put too small values for Vi, which is the initial velocity, it just graphs one or two points, because t is too small. I already tried to adjust t with 'if(t<10) t=t*10; if (t>100) t=t/10;', But it seems not to solve my problem.

Other truble I have is that, as the graph is parabola, core values ​​are very close together, and when plotted, these values ​​are in the same line on the screen.

Here is my code:
#include<stdio.h>
#include<conio.h>
#include<math.h>
void main() {
float x, y, hmax, t, amax, vi, v, a, b, g, ang; /*x= x coordinate, y= y coordinate, hmax= maximum height,

[Code] .....

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C/C++ :: Create Program To Calculate Flight Time And Fuel Burn Of Airplane?

Aug 8, 2014

I'm trying to create a program to calculate the flight time and fuel burn of an airplane. However when I repeated the whole calculation, it did not show any data or result like the previous calculation. In addition, the "If" statement that I used to test the "fuelRemain" doesn't work properly. I can't figure out why.

Here are the outputs [URL]

#include <iostream>
#include <fstream>
#include <string>

[Code].....

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C# :: Custom Media Player Time Bar - Calculate Total Size And Proportion

Dec 30, 2014

Im just wondering how would i get a formula to calculate the total size and proportion of how far the media player has been played, in proportion with the size of the sizeable form, i need an int for the:

Width of formLength of movieHow long has been played by user

I have this code so far:

//The current position played! - Within the timer.tick event arg!
string splayed = axWindowsMediaPlayer1.Ctlcontrols.currentPosition.ToString().Split('.')[0];
int iplayed = Convert.ToInt32(splayed + 1);
//The total time of the movie/audio.
string stotal = axWindowsMediaPlayer1.Ctlcontrols.currentItem.duration.ToString().Split('.')[0];
int itotal = Convert.ToInt32(splayed);

[Code] ....

I have the "AxWindowsMediaPlayer" reference installed, but i need to know how it would work...

Attached image(s)

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C++ :: Creating Timer - Count By Milliseconds And Return A True Value

Jun 19, 2013

I'm looking to create some sort of a timer. I'd like it to count by milliseconds and return a true value when it counts to a specific time. It would be used something like this:

if(alarm(1000)) {
// do some code
}

I tried using time.h, but it doesn't seem to have any millisecond commands. I need something faster than a second.

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Visual C++ :: Richeditview - Show Colored Traces In Every10 Milliseconds

Oct 6, 2012

I am using default richeditctrl in richeditview. My requirement is that i want to show colored traces in every10 milliseconds.

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C++ :: How To Set A Timer And Processing Continues

Apr 28, 2013

I need to set a timer but still have the program processing info. I have looked into using sleep but when using this all processing stops to my knowledge. I tried to use the settimer method but was having some issues since I am not using a dialog based interface.

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C++ :: Returning 2D Matrix After Processing

Feb 10, 2014

[URL] ....

typedef double (*Matrix)[imax][jmax];
Matrix xboundary(){
Matrix xx;
double x[imax][jmax];
int i;

[Code] .....

All I want to do is be able to Return "x" in some way.

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C++ :: Speech Recognition And Processing?

Jun 22, 2013

I've been coding for about 10 years now and it just got to my mind that I would like to learn about how I can create speech recognition software. I am mostly interested in doing this from ground 0 not because there are no other libs I can use, but it's more of an interest to me.

grasp this new and magnificent feature that's becoming more and more used nowadays.

My preference would be coding in C++ (more because of OOP that's why not C) and I don't really like Java.

I know what I'm getting involved in but I am thrilled and willing to go all the way to achieve my goal.

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C/C++ :: File Processing Within A Switch?

Nov 16, 2014

The error ive been getting with this code is after i go to the check out option, enter the data then click (ctrl + z). Then program glitches back and forth from the menu to the check out option continuously and im not entirely sure why.

Heres my code:

[#include <iostream>
#include <windows.h>
#include <iomanip>
#include <fstream>
using namespace std;
void records(){
cout << setw(10) << "Ministry of Health Hospital System

[code].....

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C++ :: Processing Buttons Created At Runtime

Oct 7, 2014

I am developing a small game using MFC in which the game options like new game, save, open, exit etc. can be selected from the menu as well as from the buttons inside the window. I have no problems with the menu but the buttons do not seem to work at all.

The buttons are created at runtime using CButton class. To associate the buttons with the corresponding functions, I just used the same resource ID for the buttons as the menu options, but that did not work. When I click on the buttons, nothing happens. If I assign different resource IDs to the buttons, how do I handle the message map entries? Do I have to write different message map entries for the menus and the buttons while their function is exactly the same?

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C :: Remove The Functions In A Program By Pre-processing

Jun 16, 2013

Is there a program that can remove the functions in a program by preprocessing

Code:

#include<stdio.h>
int is_even(int number);
int main(void)
{
if(is_even(number))
{
printf("%d is even", number);
}
}

[Code]...

To something like

Code:

#include<stdio.h>
int is_even(int number);
int main(void)
{
if( number%2 ==0 )
{
printf("%d is even", number);
}
}

I use the "-E" option when compiling with gcc on linux but its output still contains funcitons. Is there a preprocessing program that can remove functions from a program?

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C :: Processing Outputs Of Multiple Inputs

Nov 26, 2013

It's not something trivial but I would like to know the best way to process multiple outputs, for example:

Input
First line of input will contain a number T = number of test cases. Following lines will contain a string each.

Output
For each string, print on a single line, "UNIQUE" - if the characters are all unique, else print "NOT UNIQUE"

Sample Input
3
DELHI
london
#include<iostream>

Sample Output
UNIQUE
NOT UNIQUE
NOT UNIQUE

So how can I accomplish outputs like that? My code so far is:

Code:
int main(int argc, char *argv[]) {
int inputs, count=0;
char str[100];
char *ptr;
scanf("%d",&inputs);

[Code] ....

But the above will obviously print the output after each input, so I want to know how can I achieve the result given in the problem. Also another thing I want to know is, I am using an array of 100 char, which it can hold a string up to 100 characters, but what do I have to do if I want to handle string with no limit? Just declaring char *str is no good, so what to do?

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Visual C++ :: File Processing Within A Switch?

Nov 17, 2014

The error ive been getting with this code is after i go to the check out option, enter the data then click (ctrl + z). Then program glitches back and forth from the menu to the check out option continuously and im not entirely sure why.

Heres my code:

Code:
#include <iostream>
#include <windows.h>
#include <iomanip>
#include <fstream>
using namespace std;
void checkOut(){
cout << setw(10) << "Ministry of Health Hospital System

[code]....

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C :: Stack Smashing - Studying File Processing

Aug 6, 2013

This code does what it is supposed to do, but at the end of the file, I get an error that I have never encountered before. What exactly is stack smashing? I suspect that the files and the permissions might be the issue.

Code:

/*Write a a program for file matching
*/
#include<stdio.h>
#include<stdlib.h>
int main(void)
}

[code].....

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C++ :: Processing Structured Arrays - Too Many Initializer Values

Apr 22, 2013

I working on an assignment that processes an array of structs. In the main function I am attempting to declare an array of Author structures with 3 elements. It is supposed to be initialized to set all of the string fields (the names and book titles) to "NONE", and the double fields (the prices) to zero. This is supposed to be done in one statement, not using loops. Here is what I have.

struct BookInfo struct Author
{ {
string title; string authorName;
double price; BookInfo books[SIZE] //SIZE = 3
}; };

//prototype for function to print the content of array on screen
void showInfo(Author a[], int size);

[Code] .....

I was under the impression that an array can only hold the values of one data type. So doubles and strings in the same array doesn't make sense to me. However, that's the example my teacher drew up. The error keeps telling me that there are too many initializer values.

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C++ :: Processing Speed Of Rectangle Intersect Function?

Feb 20, 2014

I'm trying to find the fastest method to find whether or not two rectangles intersect in an effort to streamline my code. I've built this function into a rectangle class I created below.

struct rectangle{
rectangle() :X1(0), Y1(0), X2(0), Y2(0) {};
rectangle(int X1, int Y1, int X2, int Y2)
:X1(X1), Y1(Y1), X2(X2), Y2(Y2) {};

[Code].....

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C++ :: Processing Multiple Files From Single Directory?

Feb 21, 2012

I've tried to form together the following code so that I can process multiple files from one user specified directory. However, when I run the program it works great for the first file, but all other files are blank. The problem starts on the following line:

while(FileIn.good())

//---------------------------------------------------
#include <fstream>
#include <iostream>
#include <dirent.h>
#include <sys/stat.h>
using namespace std;
struct dirent *dirp;

[code]....

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Visual C++ :: Message Processing With JavaScript Or JQuery?

Jul 23, 2014

Is there a way I can do message processing between a Win32 application and Javascript using some Windows CallBack function or using Send or Post message?

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