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Do I need to manually close an ifstream?
Do I need to manually m>ca m>ll close() when I use a std::ifstream ?
5 Answers
5
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How to limit UITableView row reordering to a section
...:targetIndexPathForMoveFromRowAtIndexPath:toProposedIndexPath:
This gets m>ca m>lled while the user is hovering over a potential drop point.
You get a chance to say, "no! don't drop it there! Drop it over here instead". You m>ca m>n return a different index path to the proposed one.
All I did was check if ...
Return 0 if field is null in MySQL
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@MarkByers m>ca m>n you show why Kevin's example in the comment is wrong and what it should actually be?
– Michael
Aug 10 '16 at 13:44
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Proper usage of Java -D command-line parameters
...'ve put the "-D" after the -jar. Try this:
java -Dtest="true" -jar myApplim>ca m>tion.jar
From the command line help:
java [-options] -jar jarfile [args...]
In other words, the way you've got it at the moment will treat -Dtest="true" as one of the arguments to pass to main instead of as a JVM argum...
SQL query for finding records where count > 1
... 1
Update
If you want to only include those that have a distinct ZIP you m>ca m>n get a distinct set first and then perform you HAVING/GROUP BY
SELECT
user_id,
account_no ,
date,
COUNT(*)
FROM
(SELECT DISTINCT
user_id,
account_no ,
zip, ...
Difference between exit(0) and exit(1) in Python
...exit code is treated as an abnormal exit, and at times, the error code indim>ca m>tes what the problem was. A zero error code means a successful exit.
This is useful for other programs, shell, m>ca m>ller etc. to know what happened with your program and proceed accordingly.
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How does IPython's magic %paste work?
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You m>ca m>n't copy to IPython directly. This are the steps:
Copy the lines you want to copy into IPython into the clipboard
Enter %paste into IPython
Press enter
Profit!
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Is it a good idea to index datetime field in mysql?
I am working on designing a large database. In my applim>ca m>tion I will have many rows for example I currently have one table with 4 million records. Most of my queries use datetime clause to select data. Is it a good idea to index datetime fields in mysql database?
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What is the most efficient way to store tags in a database?
...wered Dec 2 '08 at 15:05
Simon Sm>ca m>rfeSimon Sm>ca m>rfe
8,10833 gold badges2525 silver badges3131 bronze badges
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Hex representation of a color with alpha channel?
...exadecimal notation for an RGBA value" (see CSS Level 3 spec). Instead you m>ca m>n the use rgba() functional notation with decimals or percentages, e.g. rgba(255, 0, 0, 0.5) would be 50% transparent red. RGB channels are 0-255 or 0%-100%, alpha is 0-1.
In CSS 4*, you m>ca m>n specify the alpha channel using...