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• Documentation style: how do you differentiate variable names from the rest of the text within a comm

  - by Alix

  Hi, This is a quite superfluous and uninteresting question, I'm afraid, but I always wonder about this. When you're commenting code with inline comments (as opposed to comments that will appear in the generated documentation) and the name of a variable appears in the comment, how do you differentiate it from normal text? E.g.: // Try to parse…

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• C++: is it safe to read an integer variable that's being concurrently modified without locking?

  - by Hongli

  Suppose that I have an integer variable in a class, and this variable may be concurrently modified by other threads. Writes are protected by a mutex. Do I need to protect reads too? I've heard that there are some hardware architectures on which, if one thread modifies a variable, and another thread reads it, then the read result will be…

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• How to set javascript data in asp session variable?

  - by fazilmir

  i am having a div and i am adding innerHtml in it using javascript. now what i want is that i have to set that innerHtml data in my session variable. and want to use that session variable in my another asp webform page. but i dont know how to perform this task. any help will be highly appreciated. i am doing it like this. …

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• Where the Stack variable stores ( Data segment or Heap or BSS) ?

  - by SIVA

  Some people are saying " stack variable store its value in HEAP ", and others saying " stack variable store store its value in DATA segment". I am totally confused with these conflict answers. Where exactly static variable stores?. I am expecting an answer with standard reference ( text books, or good author tutorial).

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• Export environment variable from PHP, for use by exec()'d shell command?

  - by anonymous coward

  Somewhat similar to http://stackoverflow.com/questions/2002970/export-a-variable-from-php-to-shell, but my problem is different. I am forced to work with a program that gets an important location variable from an Environment Variable (Linux), rather than a config or, better, a command line option. I have to call this…

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• In Ruby, how to write a method to display any object's instance variable names and its values

  - by Jian Lin

  Given any object in Ruby (on Rails), how can I write a method so that it will display that object's instance variable names and its values, like this: @x: 1 @y: 2 @link_to_point: #<Point:0x10031b298 @y=20, @x=38> I also want to be able to print <br> to the end of each instance variable's value so as to…

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• How did it happen that "static" denotes a function/variable without external linkage in C and C++?

  - by sharptooth

  In C static can mean either a local variable or a global function/variable without external linkage. In C++ it can also mean a per-class member variable or member function. Is there any reference to how it happened that the static keyword that seems totally irrelevant to lack of external linkage is used to denote…

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• If I don't odr-use a variable, can I have multiple definitions of it across translation units?

  - by sftrabbit

  The standard seems to imply that there is no restriction on the number of definitions of a variable if it is not odr-used (§3.2/3): Every program shall contain exactly one definition of every non-inline function or variable that is odr-used in that program; no diagnostic required. It does say that any…

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• How to check how many characters in variable, and add space between characters in that var?

  - by Camran

  I have a 'price' variable that contains some integer number from a MySQL database. I want to check how many numbers the 'price' variable contains, and add a space in the variable depending on how many numbers. See below: Example: If 'price' is 150000 I would like the output to be 150 000 (notice the…

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• Sum variable range of cells using "today's" date as starting point.

  - by Jason

  How do you sum a variable range of cells based upon today's date in MS Excel 2003. Spreadsheet format: Variable range = # of days to sum Date range = listed in row 1, 1 day per cell (example A1=1/1/10, B1=1/2/10, C1=1/3/10....) Numbers to be summed - listed in row 2, X number per cell (example…

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• How to access youtube data api json response $t variable in php?

  - by john

  I'm getting a JSON response from the YouTube Data API. Here is a sample response of the Title variable: stdClass Object ( [$t] = Video Title ) How do I access the $t variable? $blah-$t won't work because it looks for a variable by $t, and not a member of $blah with name $t.

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• How to create a new file using a variable value in perl?

  - by user295384

  Eg: $variable = "10000"; for($i=0; $i<3;$i++) { $variable++; $file = $variable."."."txt"; open output,'>$file' or die "Can't open the output file!"; } This doesn't work...Please suggest a new way. Thanks in advance :)

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• How can I create a new file using a variable value as the name in Perl?

  - by user295384

  Eg: $variable = "10000"; for($i=0; $i<3;$i++) { $variable++; $file = $variable."."."txt"; open output,'>$file' or die "Can't open the output file!"; } This doesn't work. Please suggest a new way.

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• How can I use a variable as a jQuery option value?

  - by mattgorecki

  I currently have jQuery code that looks like this: if ($.url.param("s") == "error") { $.gritter.add({ title: 'Error!', text: $.url.param('message') }); } I'm checking to see if the request variable s exists in the url (ie.…

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• Update on #temp table is faster then the @ table variable.

  - by pansingh

  In the similar query Update on #temp table is faster then the @ table variable. But I m forced to use table variable as I am wokring with function. I feel index is not being picked up for table variable. I have unique clustered index. Please help

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• Constant game speed independent of variable FPS in OpenGL with GLUT?

  - by Nazgulled

  I've been reading Koen Witters detailed article about different game loop solutions but I'm having some problems implementing the last one with GLUT, which is the recommended one. After reading a couple of articles, tutorials and code from other…

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• How to set PATH variable on Mac OS so that even non-terminal apps see it?

  - by dehmann

  I need to add a directory to my PATH variable on Mac OS. I added it in .bash_profile and .profile, and that works for the terminal. But Emacs (http://emacsformacosx.com) still does not use the new PATH variable. (I'm trying to run latex from…

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• How do I put logical operators in an Excel =IF Formula?

  - by Brian Hooper

  I'm trying to enter a formula to display text according to an IF condition. The best I can manage is something like... =IF(myval>=minval & myval <= maxval, "OK", "Not OK") But this appears to work exactly wrongly, displaying OK…

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• How to determine if a bash variable is empty?

  - by Brent

  What is the best way to determine if a variable in bash contains ""? I have heard it recommended that I do if [ "x$variable" = "x" ] Is that the correct way? (there must be something more straightforward)

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• Should *'s go next to the type or the variable name? [closed]

  - by derekerdmann

  Possible Duplicate: int* i; or int *i; or int * i; When working in C or C++, how should pointers be declared? Like this: char* derp; or this: char *derp; I typically use the first method, because the variable is a character…

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• User defined type for healthcare / Medical Records variable name prefixes?

  - by Peter Turner

  I was reading Code Complete regarding variable naming in trying to find an answer to this question and stumbled on a table of commonly accepted prefixes for programming word processor software. Well, I'm not a word processor software…

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• How can I access profile fields with a % variable in Drupal Actions?

  - by Rob Mosher

  I have an action setup in drupal to e-mail me when a new user registers for the site. Right now it is only telling me their user name (%username). Is there a variable that can access added fields so I can get their real name (First…

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• Why do most of us use 'i' as a loop counter variable?

  - by kprobst

  Has anyone thought about why so many of us repeat this same pattern using the same variable names? for (int i = 0; i < foo; i++) { // ... } It seems most code I've ever looked at uses i, j, k and so on as iteration…

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• Why do most of us use 'i' as a loop counter variable?

  - by kprobst

  Has anyone thought about why so many of us repeat this same pattern using the same variable names? for (int i = 0; i < foo; i++) { // ... } It seems most code I've ever looked at uses i, j, k and so on as iteration…

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• Why do you have to manually type variable names while debugging?

  - by SoboLAN

  I've seen this in a lot of IDEs (even in the most popular and heavily used ones, like Visual Studio): if you want to watch a variable's value, you have to manually type its name in the Watches section of the debugger. Why…

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