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  • Comparing strings that contain formatting in C#

    - by Finglas
    I'm working on a function that given some settings - such as line spacing, the output (in string form) is modified. In order to test such scenarios, I'm using string literals, as shown below for the expected result. The method, using a string builder, (AppendLine) generates the said output. One issue I have run into is that of comparing such strings. In the example below, both are equal in terms of what they represent. The result is the area which I care about, however when comparing two strings, one literal, one not, equality naturally fails. This is because one of the strings emits line spacing, while the other only demonstrates the formatting it contains. What would be the best way of solving this equality problem? I do care about formatting such as new lines from the result of the method, this is crucially important. Code: string expected = @"Test\n\n\nEnd Test."; string result = "Test\n\n\nEnd Test"; Console.WriteLine(expected); Console.WriteLine(result); Output: Test\n\n\nEnd Test. Test End Test

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  • Comparing objects and inheritance

    - by ereOn
    Hi, In my program I have the following class hierarchy: class Base // Base is an abstract class { }; class A : public Base { }; class B : public Base { }; I would like to do the following: foo(const Base& one, const Base& two) { if (one == two) { // Do something } else { // Do something else } } I have issues regarding the operator==() here. Of course comparing an instance A and an instance of B makes no sense but comparing two instances of Base should be possible. (You can't compare a Dog and a Cat however you can compare two Animals) I would like the following results: A == B = false A == A = true or false, depending on the effective value of the two instances B == B = true or false, depending on the effective value of the two instances My question is: is this a good design/idea ? Is this even possible ? What functions should I write/overload ? My apologies if the question is obviously stupid or easy, I have some serious fever right now and my thinking abilities are somewhat limited :/ Thank you.

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  • Prolific USB-to-Serial Comm Port significantly slower under Windows 7 comparing to Windows XP

    - by Dmitry S
    Not sure if this question should be asked here or on SuperUser but if we get an answer here it may be useful for others here I am using a Prolific USB-to-Serial adapter based on the Prolific chip to use with a device on serial port. I have the latest version of the driver installed: 1.3.0 (2010-7-15). When I use my device with this adapter on my main Windows 7 (32bit) system it takes 8-9 seconds to send a command through to the device. However, when I do the same thing on a different Windows XP system (an old laptop I borrowed for testing) it only takes 2-3 seconds. I have made sure that the port settings and other variables are the same between systems. I also tested on a third laptop (also running Windows 7) and again got a significant delay. So the question is if anyone else experienced the same problem and found a solution. I would like to avoid moving to an XP system for what I need to achieve so that's my last option. Thanks in advance.

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  • Prolific USB-to-Serial Comm Port significantly slower under Windows 7 comparing to Windows XP

    - by Dmitry S
    I am using a Prolific USB-to-Serial adapter based on the Prolific chip to use with a device on serial port. I have the latest version of the driver installed: 1.3.0 (2010-7-15). When I use my device with this adapter on my main Windows 7 (32bit) system it takes 8-9 seconds to send a command through to the device. However, when I do the same thing on a different Windows XP system (an old laptop I borrowed for testing) it only takes 2-3 seconds. I have made sure that the port settings and other variables are the same between systems. I also tested on a third laptop (also running Windows 7) and again got a significant delay. So the question is if anyone else experienced the same problem and found a solution. I would like to avoid moving to an XP system for what I need to achieve so that's my last option.

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  • Comparing Nginx+PHP-FPM to Apache-mod_php

    - by Rushi
    I'm running Drupal and trying to figure out the best stack to serve it. Apache + mod_php or Nginx + PHP-FPM I used ApacheBench (ab) and Siege to test both setups and I'm seeing Apache performing better. This surprises me a little bit since I've heard a lot of good things about Nginx + PHP-FPM. My current Nginx setup is something that is a bit out of the box, and the same goes for PHP-FPM What optimizations I can make to speed up the Nginx + PHP-FPM combo over Apache and mo_php ? In my tests using ab, Apache is outperforming Nginx significantly (higher requets/second and finishing tests much faster) I've googled around a bit, but since I've never using Nginx, PHP-FPM or FastCGI, I don't exactly know where to start PHP v5.2.13, Drupal v6, latest PHP-FPM and Nginx compiled from source. Apache v2.0.63 ApacheBench Nginx + PHP-FPM Server Software: nginx/0.7.67 Server Hostname: test2.com Server Port: 80 Concurrency Level: 25 ---> Time taken for tests: 158.510008 seconds Complete requests: 1000 Failed requests: 0 Write errors: 0 ---> Requests per second: 6.31 [#/sec] (mean) Time per request: 3962.750 [ms] (mean) Time per request: 158.510 [ms] (mean, across all concurrent requests) Transfer rate: 181.38 [Kbytes/sec] received ApacheBench Apache using mod_php Server Software: Apache/2.0.63 Server Hostname: test1.com Server Port: 80 Concurrency Level: 25 --> Time taken for tests: 63.556663 seconds Complete requests: 1000 Failed requests: 0 Write errors: 0 --> Requests per second: 15.73 [#/sec] (mean) Time per request: 1588.917 [ms] (mean) Time per request: 63.557 [ms] (mean, across all concurrent requests) Transfer rate: 103.94 [Kbytes/sec] received

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  • Comparing columns in Excel

    - by Regan
    I needed to take columns A, B, and C and compare D, E and F. Here's an example: A B C D E F Jump Smith 5 Jump Smith 8 Run Naylor 2 Swim Fran 4 Swim Fran 7 Jog Dylan 1 Jump Fran 3 Jog Smith 4 So I want to match column A and B with D and E but still have both number related C for 2011 and F for 2012. Can anyone please help with that formula? My data is from A3-C4344 and D3 - D4470.

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  • Comparing zip/compression utilities

    - by Grant Palin
    I've used WinZip, WinRar, and 7zip for packaging and compression. I know the first two are payware, and the last is open source. Despite that, they all seem to serve the same overall purpose. Are there any other distinguishing characteristics that make any of the options stand out? I'm not really looking for a "best" package, but would like to know of noteworthy differences between the common tools. For what it's worth, I do seem to like WinRar. Not sure why, but there it is. If it matters, I'm using Windows 7.

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  • Comparing, merging, calculating colums of data in Excel

    - by hickster
    I would like to create a formula that a) compares four columns of data (see below) Sep Oct name units name units apple 2 apple 3 pear 3 pear 7 orange 4 banana 6 banana 3 toffee 5 then b) merges the two "names" column into one column, dropping any duplicates but still retaining the two unit columns (for months Sep and Oct) Sep Oct name units units apple 2 3 pear 3 7 orange 4 0 banana 3 6 toffee 0 6 then c) creates a third column that compares "Sep units" against "Oct units" and produces the total in the "difference" column Sep Oct name units units difference apple 2 3 1 pear 3 7 4 orange 4 0 -4 banana 3 6 3 toffee 0 6 6

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  • Comparing 2 (or 3 Files If Possible) "Line By Line"

    - by PythEch
    I want to find out the differences of 2 (or 3 files if possible) line by line. Diff utils can do this, however it gives inaccurate results. Because, 2 files have exact number of lines which is "134". But diff gives me "Added Lines" and "Removed Lines". However this is wrong, they have exact the same number of lines, there is no added or removed lines. The text files which I want to find differences of them, have only numbers written, maybe that's why that algortihm fails. I couldn't find any option to prevent that, however I may be wrong, I mean there should be an option for that, but again, I couldn't find. This is what I get (5am.txt vs 6am.txt, there is a huge problem): This is what I want (6am.txt vs 7am.txt, still has problems): But, first the first image still has this problem, at the last lines. Edit: After I figured out that there is no utility to do this, I handled myself. I almost did the same thing as what RedGrittyBrick have done. This script imitates diff utility so I (or you) can use it with diff2html. To use it with diff2html, just change line diff_stdout = os.popen("diff %s" % string.join(argv[1:]), "r") to diff_stdout = os.popen("script.py %s" % string.join(argv[1:]), "r") and name this script whatever you want: import sys f1=open(sys.argv[1],"r") f1_read=f1.readlines() f1.close() f2=open(sys.argv[2],"r") f2_read=f2.readlines() f2.close() changed={} first_c = "" for n in range(len(f1_read)): if f1_read[n]!=f2_read[n]: if first_c == "": first_c=n+1 changed[first_c]=n+1 else: first_c="" #Let's imitate diff-utils... for (x, y) in changed.items(): print "%d,%dc%d,%d" % (x,y,x,y) for i in range(x,y+1): sys.stdout.write("< %s" % f1_read[i-1]) print "---" for i in range(x,y+1): sys.stdout.write("> %s" % f2_read[i-1]) Final results:

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  • My way of Comparing CPUs

    - by abbasi
    There are many types of CPUs, like Pentiume, Atom, core 2 duo, core iX (X = 3,5, ....), But I always don't look at them this way! I always look at their speed which in GHZ unit and then compare them with each other. For example when some CPU is in type of 'X' with 2 GHZ of speed and another one is in type of 'Y' with 2.2 GHZ of speed, I say the second one ('Y') has better speed and also better performance. Is it a correct way? Thanks

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  • Comparing two specific properties of a CSV using Compare-Object isn't giving the expected results

    - by MDMarra
    I have a list of users from two separate domains. These lists are in CSV format and I only care about the SAMAccountName, which is a field in these CSVs. The code that I'm working with is currently: $domain1 = Import-CSV C:\Scripts\Temp\domain1.xxx.org.csv | Select-Object SAMAccountName $domain2 = Import-CSV C:\Scripts\Temp\domain2.xxx.org.csv | Select-Object SAMAccountName Compare-Object ($domain1) ($domain2) This is returning only a handful of results (which aren't accurate) in this format: @{samaccountname=SomeUser} => Obviously, Compare-Object isn't evaluating the objects as strings. How do I make this work?

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  • Comparing outgoing mail options, self hosted VS google apps in my situation

    - by Hoofamon
    I am setting up a small site that has the need to be able to programmatically send mail from time to time. Password resets and things like that. I'm already using google apps to handle my domains email, so now i'm left with the decision between setting up basic SMTP services on my server to send "password reset mails and things like that" OR instead to have the software use google apps to send mail. I like the google apps option as it's less stuff to worry about and seems to fit my needs, i'm trying to figure out what the downsides would be? Thanks for any thoughts

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  • Comparing 128MB GeForce 8600GT and 512MB Radeon X1650

    - by Synetech inc.
    Hi, I'm trying to determine which is the better of these two video cards: 128MB Nvidia GeForce 8600GT card while the other has a 512MB ATI Radeon X1650 card. Both cards are the upper-level mid-range versions of their respective series. On the one hand, the ATI has substantially more VRAM, but the Nvidia supports D3D 10 and SM4.0 as opposed to D3D 9.0c/SM3.0 that the ATI supports. Also, I have always heard better things about Nvidia cards compared to ATI cards. I'm trying to find some advice on which one is better, but I can't find any actual comparisons or anything for these specific cards (the comparisons I can find are only similar ones like the X1650 Pro or 8600GT PCI-E), so I figure that what I need to know is whether the extra VRAM is that important. Looking at the ATI table and the Nvidia table seems to indicate that the Nvidia is better, but then again, the Nvidia table also says that the GeForce 8600GT is a PCI-E card with at least 256MB even though the card in question is an AGP with 128MB. (:-?) (It looks like the ATI card is not supported in Windows 7 while the Nvidia card is, which I suppose is also a factor, though not quite as immediately relevant as performance.) Any ideas? Thanks a lot.

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  • Comparing floating point values

    - by Sauron
    I just read a statement about the floating point value comparison Floating point values shall not be compared using either the == or != operators. Most floating point values have no exact binary representation and have a limited precision. If so what is the best method for comparing two floating point values?

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  • Java graph library for comparing 2 graphs

    - by user311909
    Hello, Does anyone know a good java library for graph comparing by searching maximal common subgraph isomorphism to get information about their similarity? I do not want to compare graphs based on node labels. Or is there any other way how to topologicaly compare graphs with good java library? Now I am using library SimPack and it is usefull but I need something more. Any suggestions will be very helpful. Thanks in advance

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  • Comparing against NSLocalizedString safe?

    - by George
    Hi, Sometimes I need to compare interface elements to other objects. At the moment I'm doing it by comparing their titles against a localized string. Am I right that I better compare my objects against IBOutlets? Tags are out of the question because I'm using NSMenu.

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  • Problem comparing French character Î

    - by Bryan
    When comparing "Île" and "Ile", C# does not consider these to be to be the same. string.Equals("Île", "Ile", StringComparison.InvariantCultureIgnoreCase) For all other accented characters I have come across the comparison works fine. Is there another comparison function I should use?

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  • Comparing text files w/ Junit

    - by jon077
    I am comparing text files in junit using: public static void assertReaders(BufferedReader expected, BufferedReader actual) throws IOException { String line; while ((line = expected.readLine()) != null) { assertEquals(line, actual.readLine()); } assertNull("Actual had more lines then the expected.", actual.readLine()); assertNull("Expected had more lines then the actual.", expected.readLine()); } Is this a good way to compare text files? What is preferred?

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  • comparing dates in c# taking null value into account

    - by Saif
    Hi I am new to c#. I am comparing two dates where one is entered by user and the other one is sytem date time. i have the code working as it stands where the obstacle has occured is how to cater for null values. the basic code I have is: if (mydate.ToShortDateString() != TodaysDate.ToShortDateString()) { //Error Messaage } else { //do some code } Any feedback will be appreciated

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  • comparing 2 arrays on perl

    - by qrbaQ
    could someone provide a good /nice solution in perl for comparing 2 arrays (a and b ) which check if every element on array a is founded on array b (and founded only once on array b) ?

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  • Comparing two Oracle schema, other users

    - by Igman
    Hello! I have been tasked with comparing two oracle schema with a large number of tables to find the structural differences in the schema. Up until know I have used the DB Diff tool in Oracle SQL Developer, and it has worked very well. The issue is that now I need to compare tables in a user that I cannot log into , but I can see it through the other users section in SQL developer. The issue is that whenever I try to use the diff tool to compare those objects to the other schema it does not work. Does anyone have any idea how to do this? It would save me a very large amount of work. I have some basic SQL knowledge if that is whats needed. Thanks.

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  • Comparing (similar) images with Python/PIL

    - by Attila Oláh
    I'm trying to calculate the similarity (read: Levenshtein distance) of two images, using Python 2.6 and PIL. I plan to use the python-levenshtein library for fast comparison. Main question: What is a good strategy for comparing images? My idea is something like: Convert to RGB (transparent - white) (or maybe convert to monochrome?) Scale up the smaller one to the larger one's size Convert each channel (= the only channel, if converted to monochrome) to a sequence (item value = color value of the pixel) Calculate the Levenshtein distance between the two sequences Of course, this will not handle cases like mirrored images, cropped images, etc. But for basic comparison, this should be useful. Is there a better strategy documented somewhere?

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