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  • Capture Stored Procedure print output in .NET (Different model!)

    - by Workshop Alex
    Basically, this question with a difference... Is it possible to capture print output from a TSQL stored procedure in .NET, using the Entity Framework? The solution in the other question doesn't work for me. It works with the connection type from System.Data.SqlClient but I'm using the one from System.Data.EntityClient which does not have an InfoMessage event. (Of course, I could just create an SQL connection based on the Entity connection settings, but prefer to do it directly.)

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  • having an issue about the output in c programming ..

    - by user2985811
    i'm having a problem on running the output after putting the input.. the output doesn't show after i put the variables and i don't know how to set the code .. so if you guys could help me with this, that would be grateful.. #include <stdio.h> #include <conio.h> int read_temps (float temps[]); int hot_days (int numOfTemp, float temps[]); int printf_temps (int numOfTemp, float temps[], int numOfHotDays); int main (void) { int index = 0; float tempVal; float temps[31]; int numOfTemp, numOfHotDays; do { printf ("Enter the temperature:"); scanf ("%f", &tempVal); if (tempVal!=-500.0) { temps[index] = tempVal; index++; } } while (tempVal != -500.0); return ; { int i; int count = 0; for (i = 0; i < numOfTemp; i++) { if (temps[i] > 32.0) count++; } return count; } { float sum = 0.0; int i; printf ("\nInput Temperatures:"); printf ("\n-------------------------"); for (i = 0;i < numOfTemp; i++) { printf ("\nDay %d : %.2fF", i+1, temps[i]); sum = sum + temps[i]; } printf ("\nNumber of Hot Days : %d", numOfHotDays); printf ("\nAverage Temperature: %.2f", sum/numOfTemp); } { clrscr (); numOfTemp = read_temps (temps); numOfHotDays = hot_days (numOfTemp, temps); clrscr (); printf_temps (numOfTemp, temps, numOfHotDays); getch (); } }

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  • Unix sort keys cause performance problems

    - by KenFar
    My data: It's a 71 MB file with 1.5 million rows. It has 6 fields All six fields combine to form a unique key - so that's what I need to sort on. Sort statement: sort -t ',' -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 -k6,6 -o output.csv input.csv The problem: If I sort without keys, it takes 30 seconds. If I sort with keys, it takes 660 seconds. I need to sort with keys to keep this generic and useful for other files that have non-key fields as well. The 30 second timing is fine, but the 660 is a killer. More details using unix time: sort input.csv -o output.csv = 28 seconds sort -t ',' -k1 input.csv -o output.csv = 28 seconds sort -t ',' -k1,1 input.csv -o output.csv = 64 seconds sort -t ',' -k1,1 -k2,2 input.csv -o output.csv = 194 seconds sort -t ',' -k1,1 -k2,2 -k3,3 input.csv -o output.csv = 328 seconds sort -t ',' -k1,1 -k2,2 -k3,3 -k4,4 input.csv -o output.csv = 483 seconds sort -t ',' -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 input.csv -o output.csv = 561 seconds sort -t ',' -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 -k6,6 input.csv -o output.csv = 660 seconds I could theoretically move the temp directory to SSD, and/or split the file into 4 parts, sort them separately (in parallel) then merge the results, etc. But I'm hoping for something simpler since looks like sort is just picking a bad algorithm. Any suggestions? Testing Improvements using buffer-size: With 2 keys I got a 5% improvement with 8, 20, 24 MB and best performance of 8% improvement with 16MB, but 6% worse with 128MB With 6 keys I got a 5% improvement with 8, 20, 24 MB and best performance of 9% improvement with 16MB. Testing improvements using dictionary order (just 1 run each): sort -d --buffer-size=8M -t ',' -k1,1 -k2,2 input.csv -o output.csv = 235 seconds (21% worse) sort -d --buffer-size=8M -t ',' -k1,1 -k2,2 input.csv -o ouput.csv = 232 seconds (21% worse) conclusion: it makes sense that this would slow the process down, not useful Testing with different file system on SSD - I can't do this on this server now. Testing with code to consolidate adjacent keys: def consolidate_keys(key_fields, key_types): """ Inputs: - key_fields - a list of numbers in quotes: ['1','2','3'] - key_types - a list of types of the key_fields: ['integer','string','integer'] Outputs: - key_fields - a consolidated list: ['1,2','3'] - key_types - a list of types of the consolidated list: ['string','integer'] """ assert(len(key_fields) == len(key_types)) def get_min(val): vals = val.split(',') assert(len(vals) <= 2) return vals[0] def get_max(val): vals = val.split(',') assert(len(vals) <= 2) return vals[len(vals)-1] i = 0 while True: try: if ( (int(get_max(key_fields[i])) + 1) == int(key_fields[i+1]) and key_types[i] == key_types[i+1]): key_fields[i] = '%s,%s' % (get_min(key_fields[i]), key_fields[i+1]) key_types[i] = key_types[i] key_fields.pop(i+1) key_types.pop(i+1) continue i = i+1 except IndexError: break # last entry return key_fields, key_types While this code is just a work-around that'll only apply to cases in which I've got a contiguous set of keys - it speeds up the code by 95% in my worst case scenario.

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  • Tips on ensuring Model Quality

    - by [email protected]
    Given enough data that represents well the domain and models that reflect exactly the decision being optimized, models usually provide good predictions that ensure lift. Nevertheless, sometimes the modeling situation is less than ideal. In this blog entry we explore the problems found in a few such situations and how to avoid them.1 - The Model does not reflect the problem you are trying to solveFor example, you may be trying to solve the problem: "What product should I recommend to this customer" but your model learns on the problem: "Given that a customer has acquired our products, what is the likelihood for each product". In this case the model you built may be too far of a proxy for the problem you are really trying to solve. What you could do in this case is try to build a model based on the result from recommendations of products to customers. If there is not enough data from actual recommendations, you could use a hybrid approach in which you would use the [bad] proxy model until the recommendation model converges.2 - Data is not predictive enoughIf the inputs are not correlated with the output then the models may be unable to provide good predictions. For example, if the input is the phase of the moon and the weather and the output is what car did the customer buy, there may be no correlations found. In this case you should see a low quality model.The solution in this case is to include more relevant inputs.3 - Not enough cases seenIf the data learned does not include enough cases, at least 200 positive examples for each output, then the quality of recommendations may be low. The obvious solution is to include more data records. If this is not possible, then it may be possible to build a model based on the characteristics of the output choices rather than the choices themselves. For example, instead of using products as output, use the product category, price and brand name, and then combine these models.4 - Output leaking into input giving the false impression of good quality modelsIf the input data in the training includes values that have changed or are available only because the output happened, then you will find some strong correlations between the input and the output, but these strong correlations do not reflect the data that you will have available at decision (prediction) time. For example, if you are building a model to predict whether a web site visitor will succeed in registering, and the input includes the variable DaysSinceRegistration, and you learn when this variable has already been set, you will probably see a big correlation between having a Zero (or one) in this variable and the fact that registration was successful.The solution is to remove these variables from the input or make sure they reflect the value as of the time of decision and not after the result is known. 

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  • More on Map Testing

    - by Michael Stephenson
    I have been chatting with Maurice den Heijer recently about his codeplex project for the BizTalk Map Testing Framework (http://mtf.codeplex.com/). Some of you may remember the article I did for BizTalk 2009 and 2006 about how to test maps but with Maurice's project he is effectively looking at how to improve productivity and quality by building some useful testing features within the framework to simplify the process of testing maps. As part of our discussion we realized that we both had slightly different approaches to how we validate the output from the map. Put simple Maurice does some xpath validation of the data in various nodes where as my approach for most standard cases is to use serialization to allow you to validate the output using normal MSTest assertions. I'm not really going to go into the pro's and con's of each approach because I think there is a place for both and also I'm sure others have various approaches which work too. What would be great is for the map testing framework to provide support for different ways of testing which can cover everything from simple cases to some very specialized scenarios. So as agreed with Maurice I have done the sample which I will talk about in the rest of this article to show how we can use the serialization approach to create and compare the input and output from a map in normal development testing. Prerequisites One of the common patterns I usually implement when developing BizTalk solutions is to use xsd.exe to create .net classes for most of the schemas used within the solution. In the testing pattern I will take advantage of these .net classes. The Map In this sample the map we will use is very simple and just concatenates some data from the input message to the output message. Hopefully the below picture illustrates this well. The Test In the test I'm basically taking the following actions: Use the .net class generated from the schema to create an input message for the map Serialize the input object to a file Run the map from .net using the standard BizTalk test method which was generated for running the map Deserialize the output file from the map execution to a .net class representing the output schema Use MsTest assertions to validate things about the output message The below picture shows this: As you can see the code for this is pretty simple and it's all strongly typed which means changes to my schema which can affect the tests can be easily picked up as compilation errors. I can then chose to have one test which validates most of the output from the map, or to have many specific tests covering individual scenarios within the map. Summary Hopefully this post illustrates a powerful yet simple way of effectively testing many BizTalk mapping scenarios. I will probably have more conversations with Maurice about these approaches and perhaps some of the above will be included in the mapping test framework.   The sample can be downloaded from here: http://cid-983a58358c675769.office.live.com/self.aspx/Blog%20Samples/More%20Map%20Testing/MapTestSample.zip

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  • Correct syntax in stored procedure and method using MsSqlProvider.ExecProcedure? [migrated]

    - by Dudi
    I have problem with ASP.net and database prcedure My procedure in mssql base USE [dbase] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO ALTER PROCEDURE [dbo].[top1000] @Published datetime output, @Title nvarchar(100) output, @Url nvarchar(1000) output, @Count INT output AS SET @Published = (SELECT TOP 1000 dbo.vst_download_files.dfl_date_public FROM dbo.vst_download_files ORDER BY dbo.vst_download_files.dfl_download_count DESC ) SET @Title = (SELECT TOP 1000 dbo.vst_download_files.dfl_name FROM dbo.vst_download_files ORDER BY dbo.vst_download_files.dfl_download_count DESC) SET @Url = (SELECT TOP 1000 dbo.vst_download_files.dfl_source_url FROM dbo.vst_download_files ORDER BY dbo.vst_download_files.dfl_download_count DESC) SET @Count = (SELECT TOP 1000 dbo.vst_download_files.dfl_download_count FROM dbo.vst_download_files ORDER BY dbo.vst_download_files.dfl_download_count DESC) And my proceduer in website project public static void Top1000() { List<DownloadFile> List = new List<DownloadFile>(); SqlDataReader dbReader; SqlParameter published = new SqlParameter("@Published", SqlDbType.DateTime2); published.Direction = ParameterDirection.Output; SqlParameter title = new SqlParameter("@Title", SqlDbType.NVarChar); title.Direction = ParameterDirection.Output; SqlParameter url = new SqlParameter("@Url", SqlDbType.NVarChar); url.Direction = ParameterDirection.Output; SqlParameter count = new SqlParameter("@Count", SqlDbType.Int); count.Direction = ParameterDirection.Output; SqlParameter[] parm = {published, title, count}; dbReader = MsSqlProvider.ExecProcedure("top1000", parm); try { while (dbReader.Read()) { DownloadFile df = new DownloadFile(); //df.AddDate = dbReader["dfl_date_public"]; df.Name = dbReader["dlf_name"].ToString(); df.SourceUrl = dbReader["dlf_source_url"].ToString(); df.DownloadCount = Convert.ToInt32(dbReader["dlf_download_count"]); List.Add(df); } XmlDocument top1000Xml = new XmlDocument(); XmlNode XMLNode = top1000Xml.CreateElement("products"); foreach (DownloadFile df in List) { XmlNode productNode = top1000Xml.CreateElement("product"); XmlNode publishedNode = top1000Xml.CreateElement("published"); publishedNode.InnerText = "data dodania"; XMLNode.AppendChild(publishedNode); XmlNode titleNode = top1000Xml.CreateElement("title"); titleNode.InnerText = df.Name; XMLNode.AppendChild(titleNode); } top1000Xml.AppendChild(XMLNode); top1000Xml.Save("\\pages\\test.xml"); } catch { } finally { dbReader.Close(); } } And if I made to MsSqlProvider.ExecProcedure("top1000", parm); I got String[1]: property Size has invalid size of 0. Where I shoudl look for solution? Procedure or method?

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  • Using windows command line from Pascal

    - by Jordan
    I'm trying to use some windows command line tools from within a short Pascal program. To make it easier, I'm writing a function called DoShell which takes a command line string as an argument and returns a record type called ShellResult, with one field for the process's exitcode and one field for the process's output text. I'm having major problems with some standard library functions not working as expected. The DOS Exec() function is not actually carrying out the command i pass to it. The Reset() procedure gives me a runtime error RunError(2) unless i set the compiler mode {I-}. In that case i get no runtime error, but the Readln() functions that i use on that file afterwards don't actually read anything, and furthermore the Writeln() functions used after that point in the code execution do nothing as well. Here's the source code of my program so far. I'm using Lazarus 0.9.28.2 beta, with Free Pascal Compiler 2.24 program project1; {$mode objfpc}{$H+} uses Classes, SysUtils, StrUtils, Dos { you can add units after this }; {$IFDEF WINDOWS}{$R project1.rc}{$ENDIF} type ShellResult = record output : AnsiString; exitcode : Integer; end; function DoShell(command: AnsiString): ShellResult; var exitcode: Integer; output: AnsiString; exepath: AnsiString; exeargs: AnsiString; splitat: Integer; F: Text; readbuffer: AnsiString; begin //Initialize variables exitcode := 0; output := ''; exepath := ''; exeargs := ''; splitat := 0; readbuffer := ''; Result.exitcode := 0; Result.output := ''; //Split command for processing splitat := NPos(' ', command, 1); exepath := Copy(command, 1, Pred(splitat)); exeargs := Copy(command, Succ(splitat), Length(command)); //Run command and put output in temporary file Exec(FExpand(exepath), exeargs + ' __output'); exitcode := DosExitCode(); //Get output from file Assign(F, '__output'); Reset(F); Repeat Readln(F, readbuffer); output := output + readbuffer; readbuffer := ''; Until Eof(F); //Set Result Result.exitcode := exitcode; Result.output := output; end; var I : AnsiString; R : ShellResult; begin Writeln('Enter a command line to run.'); Readln(I); R := DoShell(I); Writeln('Command Exit Code:'); Writeln(R.exitcode); Writeln('Command Output:'); Writeln(R.output); end.

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  • how to get Celsius as output from LM335Z with arduino?

    - by wizztjh
    the firstsensor is my lm335z output. int firstSensor = 0; int secondSensor = 0; int thirdSensor = 0; int inByte = 0; void setup() { Serial.begin(9600); establishContact(); // send a byte to establish contact until receiver responds } void loop() { if (Serial.available() > 0) { inByte = Serial.read(); firstSensor = analogRead(0); delay(10); secondSensor = analogRead(1); thirdSensor = analogRead(2); Serial.print(firstSensor, DEC); Serial.print(","); Serial.print(secondSensor, DEC); Serial.print(","); Serial.println(thirdSensor, DEC); } } void establishContact() { }

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  • Converting hierarchial data into an unordered list Programmatically using asp.net/C#

    - by kranthi
    hi everyone, I've data which looks something like this. | id | name | depth | itemId | +-----+----------------------+-------+-------+ | 0 | ELECTRONICS | 0 | NULL | | 1 | TELEVISIONS | 1 | NULL | | 400 | Tube | 2 | NULL | | 432 | LCD | 3 | 1653 | | 422 | Plasma | 3 | 1633 | | 416 | Portable electronics | 3 | 1595 | | 401 | MP3 Player | 3 | 1249 | | 191 | Flash | 2 | NULL | | 555 | CD Players | 3 | 2198 | | 407 | 2 Way Radio | 3 | 1284 | | 388 | I've a problem with | 3 | 1181 | | 302 | What is your bill pa | 3 | 543 | | 203 | Where can I find my | 3 | 299 | | 201 | I would like to make | 3 | 288 | | 200 | Do you have any job | 3 | 284 | | 192 | About Us | 3 | NULL | | 199 | What can you tell me | 4 | 280 | | 198 | Do you help pr | 4 | 276 | | 197 | would someone help co| 4 | 272 | | 196 | can you help ch | 4 | 268 | | 195 | What awards has Veri | 4 | 264 | | 194 | What's the latest ne | 4 | 260 | | 193 | Can you tell me more | 4 | 256 | | 180 | Site Help | 2 | NULL | | 421 | Where are the | 3 | 1629 | | 311 | How can I access My | 3 | 557 | | 280 | Why isn't the page a | 3 | 512 | To convert the above data into unordered list based on depth, I'm using the following code int lastDepth = -1; int numUL = 0; StringBuilder output = new StringBuilder(); foreach (DataRow row in ds.Tables[0].Rows) { int currentDepth = Convert.ToInt32(row["Depth"]); if (lastDepth < currentDepth) { if (currentDepth == 0) { output.Append("<ul class=\"simpleTree\">"); output.AppendFormat("<li class=\"root\"><span><a href=\"#\" title=\"root\">root</a></span><ul><li class=\"open\" ><span><a href=\"#\" title={1}>{0}</a></span>", row["name"],row["id"]); } else { output.Append("<ul>"); if(currentDepth==1) output.AppendFormat("<li><span>{0}</span>", row["name"]); else output.AppendFormat("<li><span class=\"text\"><a href=\"#\" title={1}>{0}</a></span>", row["name"], row["id"]); } numUL++; } else if (lastDepth > currentDepth) { output.Append("</li></ul></li>"); if(currentDepth==1) output.AppendFormat("<li><span>{0}</span>", row["name"]); else output.AppendFormat("<li><span class=\"text\"><a href=\"#\" title={1}>{0}</a></span>", row["name"], row["id"]); numUL--; } else if (lastDepth > -1) { output.Append("</li>"); output.AppendFormat("<li><span class=\"text\"><a href=\"#\" title={1}>{0}</a></span>", row["name"],row["id"]); } lastDepth = currentDepth; } for (int i = 1; i <= numUL+1; i++) { output.Append("</li></ul>"); } myliteral.text=output.ToString(); But the resulting unordered list doesnt seem to be forming properly(using which i am constructing a tree).For example "Site Help" with id '180' is supposed to appear as a direct child of "Televisions" with id '1',is appearing as a direct child of 'Flash' with id '191' using my code.so in addition to considering depth,I've decided to consider itemid as well in order to get the treeview properly.Those rows of the table with itemId not equal to null are not supposed to have a child node(i.e.,they are the leaf nodes in the tree) and all the other nodes can have child nodes. Please could someone help me in constructing a proper unordered list based on my depth,itemid coulumns? Thanks.

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  • Intercept a request to read a particular file and instead generate the apparent output of that file

    - by Mike Atkinson
    Sorry for the long and yet still somehow vague title! A friend of mine has a Flash Action script running on a LAMP server that currently reads an xml config file. He's asked me if it's possible to remove the xml file, and replace it somehow with a system (lets call it an 'auto xml generator') that intercepts the request to read that file and generates an output, so it appears to all intents and purposes as if the file still exists and contains the contents that has actually been returned from our auto xml generator Hours of Googling has failed to come up with any promising leads, can anyone offer any advice? Thanks very much! Mike

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  • How can I write query to output this format in SQLite?

    - by GivenPie
    I would like to output in this format: e.EE_id e.FNAME e.LNAME SUPer_id s.FNAME s.LNAME --- --------- -------------- --- ------------- ------------------- 1 Ziqiao Li 2 Charlie Li 1 Ziqiao Li 3 George Pee 2 Charlie Li 4 Jason Dee 2 Charlie Li 5 Petey Wee 2 Charlie Li From this table created : I need to display the Primary key and foreign key in the same results while displaying the foreign key name values for the primary key names. Create table Employees( ee_id integer, fname varchar(20), lname varchar(20), super_id integer, Constraint emp_Pk Primary Key (ee_id), Constraint emp_Fk Foreign Key (super_id) references employees (ee_id) ); INSERT INTO Employees VALUES(1,'Charlie','Li',null); INSERT INTO Employees VALUES(2,'Ziqiao','Lee',1); INSERT INTO Employees VALUES(3,'George','Pee',2); INSERT INTO Employees VALUES(4,'Jason','Dee',2); INSERT INTO Employees VALUES(5,'Petey','Wee',2); Select ee_id, fname, lname, super_id from employees; ee_id fname lname super_id ---------- ---------- ---------- ---------- 1 Charlie Li 2 Ziqiao Lee 1 3 George Pee 2 4 Jason Dee 2 5 Petey Wee 2 Do I need to create a view?

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  • HTTP Builder/Groovy - get source text _and_ XmlSlurper output?

    - by Misha Koshelev
    Dear All: I am reading here: http://groovy.codehaus.org/modules/http-builder/doc/get.html I seem to be able to get i) XMLSlurper output as parsed by NekoHTML using: def http = new HTTPBuilder('http://www.google.com') def html = http.get( path : '/search', query : [q:'Groovy'] ) ii) Raw text using: http.get( path : '/search', contentType : TEXT, query : [q:'Groovy'] ) { resp, reader -> println "response status: ${resp.statusLine}" println 'Headers: -----------' resp.headers.each { h -> println " ${h.name} : ${h.value}" } println 'Response data: -----' System.out << reader println '\n--------------------' } I am having some trouble and would like to get BOTH (i) and (ii) to debug my XmlSlurper code on the actual html I am getting. Any suggestions how I might go about doing this? I can easily instantiate an XmlSlurper object with the relevant string using the parseString(string) method or the parse(reader) method, but I cannot seem to get the Neko processing step correct. Any hints? Thank you! Misha

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  • How can I redirect the output of Perl's system() to a filehandle?

    - by syker
    With the open command in Perl, you can use a filehandle. However I have trouble getting back the exit code with the open command in Perl. With the system command in Perl, I can get back the exit code of the program I'm running. However I want to just redirect the STDOUT to some filehandle (no stderr). My stdout is going to be a line-by-line output of key-value pairs that I want to insert into a mao in perl. That is why I want to redirect only my stdout from my Java program in perl. Is that possible? Note: If I get errors, the errors get printed to stderr. One possibility is to check if anything gets printed to stderr so that I can quite the Perl script.

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  • Why is this the output of this python program?

    - by Andrew Moffat
    Someone from #python suggested that it's searching for module "herpaderp" and finding all the ones listed as its searching. If this is the case, why doesn't it list every module on my system before raising ImportError? Can someone shed some light on what's happening here? import sys class TempLoader(object): def __init__(self, path_entry): if path_entry == 'test': return raise ImportError def find_module(self, fullname, path=None): print fullname, path return None sys.path.insert(0, 'test') sys.path_hooks.append(TempLoader) import herpaderp output: 16:00:55 $> python wtf.py herpaderp None apport None subprocess None traceback None pickle None struct None re None sre_compile None sre_parse None sre_constants None org None tempfile None random None __future__ None urllib None string None socket None _ssl None urlparse None collections None keyword None ssl None textwrap None base64 None fnmatch None glob None atexit None xml None _xmlplus None copy None org None pyexpat None problem_report None gzip None email None quopri None uu None unittest None ConfigParser None shutil None apt None apt_pkg None gettext None locale None functools None httplib None mimetools None rfc822 None urllib2 None hashlib None _hashlib None bisect None Traceback (most recent call last): File "wtf.py", line 14, in <module> import herpaderp ImportError: No module named herpaderp

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  • Question about "Link Map" output and "Assume" directive of MASM assembler.

    - by smwikipedia
    I am new to MASM. So the questions may be quite basic. When I am using the MASM assembler, there's an output file called "Link Map". Its content is composed of the starting offset and length of various segments, such as Data segment, Code segment and Stack segment. I am wondering that, where are these information describing? Are they talking about how various segments are located within an EXE file or, how segments are located within memory after the EXE file being loaded into memory by a program loader? BTW: What does the "Assume" directive do? My understanding is that it tell the assembler to emit some information into the exe file header so the program loader could use it to set DS, CS, SS, ES register accordingly. Am I right on this? Thanks in advance.

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  • What do the different columns (of letters) mean for the svn merge output?

    - by James
    The output of SVN merge has 4 columns of letters listed before the file name. I understand the meaning of the letters (mostly) but I can't find any information on the meanings of the columns and so only have a vague understanding based on context. Can anyone point me to the documentation on this? Based on context I've been able to infer that column: Is about text changes to a file Seems to be related to use of the svn ignore command on a folder (or maybe it's just properties of the file?) I've never seen a letter in the third column and hence I have no idea what it means. Might be tree conflicts? This is the one I'm mostly worried about because I don't know how to handle it yet.

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  • How can I temporarily redirect printf output to a c-string?

    - by Ben S
    I'm writing an assignment which involves adding some functionality to PostgreSQL on a Solaris box. As part of the assignment, we need to print some information on the client side (i.e.: using elog.) PostgreSQL already has lots of helper methods which print out the required information, however, the helper methods are packed with hundreds of printf calls, and the elog method only works with c-style strings. Is there I way that I could temporarily redirect printf calls to a buffer so I could easily send it over elog to the client? If that's not possible, what would be the simplest way to modify the helper methods to end up with a buffer as output?

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