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C++, copy set to vector
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You need to use a back_inserter:
std::copy(input.begin(), input.end(), std::back_inserter(output));
std::copy doesn't add elements to the container into which you are inserting: it can't; it only has an iterator into the container. Because of ...
Safely turning a JSON string into an object
Given a string of JSON data, how can I safely turn that string into a JavaScript object?
28 Answers
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Browsing Folders in MSYS
...is will be the toughest question of the day. How do I navigate through my Windows folder structure within the MSYS shell? When I start the shell, all I see is a '~'. I type 'ls' and the folder is empty. I just want to know how to get to my c drive.
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Place a button right aligned
...use depends on your circumstances but the basic one is float: right;:
<input type="button" value="Click Me" style="float: right;">
You'll probably want to clear your floats though but that can be done with overflow:hidden on the parent container or an explicit <div style="clear: both;"&g...
Remove not alphanumeric characters from string
I want to convert the following string to the provided output.
7 Answers
7
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Ordering by specific field value first
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There's also the MySQL FIELD function.
If you want complete sorting for all possible values:
SELECT id, name, priority
FROM mytable
ORDER BY FIELD(name, "core", "board", "other")
If you only care that "core" is first and the other values don't matter:
SELECT id, name, priority
FROM my...
Cron jobs and random times, within given hours
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If I understand what you're looking for, you'll need to do something a bit messy, like having a cron job that runs a bash script that randomizes the run times... Something like this:
crontab:
0 9 * * * /path/to/bashscript
and in /path/to/bashscript:
#...
Why would json_encode return an empty string
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Well after 2 hours of digging (cf Edits)
I found out following :
In my case it's a encoding problem
mb_detect_encoding returns probably a faulty response, some strings were probably not UTF-8
using utf8_encode() on those string solved my problem...
Why sizeof int is wrong, while sizeof(int) is right?
We know that sizeof is an operator used for calculating the size of any datatype and expression, and when the operand is an expression, the parentheses can be omitted.
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How can I launch Safari from an iPhone app?
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should be the following :
NSURL *url = [NSURL URLWithString:@"http://www.stackoverflow.com"];
if (![[UIApplication sharedApplication] openURL:url]) {
NSLog(@"%@%@",@"Failed to open url:",[url description]);
}
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