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Creating your own header file in C
... that this code doesn't work if you try to just build it by button ("build and run" in Code::Blocks for example). It might seem obvious for you but for me it's the first time it has happened and it took me quite some time to figure out where is the problem.
– Jeyekomon
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Convert seconds value to hours minutes seconds?
... after each division.
Edit: If that didn't work, try this. (I just wrote and tested it)
public static int[] splitToComponentTimes(BigDecimal biggy)
{
long longVal = biggy.longValue();
int hours = (int) longVal / 3600;
int remainder = (int) longVal - hours * 3600;
int mins = remain...
Where do I find the definition of size_t?
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From Wikipedia
The stdlib.h and stddef.h header files define a datatype called size_t1 which is used to represent the size of an object. Library functions that take sizes expect them to be of type size_t, and the sizeof operator evaluates to size_t.
The...
Specify custom Date format for colClasses argument in read.table/read.csv
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You can write your own function that accepts a string and converts it to a Date using the format you want, then use the setAs to set it as an as method. Then you can use your function as part of the colClasses.
Try:
setAs("character","myDate", function(from) as.Date(from, for...
How to pass object with NSNotificationCenter
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You'll have to use the "userInfo" variant and pass a NSDictionary object that contains the messageTotal integer:
NSDictionary* userInfo = @{@"total": @(messageTotal)};
NSNotificationCenter* nc = [NSNotificationCenter defaultCenter];
[nc postNotificationName:@"eRXRe...
Adding options to select with javascript
...ect.appendChild(opt);
}
JS Fiddle demo.
JS Perf comparison of both mine and Sime Vidas' answer, run because I thought his looked a little more understandable/intuitive than mine and I wondered how that would translate into implementation. According to Chromium 14/Ubuntu 11.04 mine is somewhat fas...
How to convert a Git shallow clone to a full clone?
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Neither answer worked for me. Both commands succeeded in fetching all the missing commits, but when I try to push new commits, I get an error about the server not knowing about 'shallow' refs
– Tyguy7
Sep 19 '15 at 0:08
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virtualenvwrapper and Python 3
I installed python 3.3.1 on ubuntu lucid and successfully created a virtualenv as below
9 Answers
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How to find whether or not a variable is empty in Bash
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In Bash at least the following command tests if $var is empty:
if [[ -z "$var" ]]; then
# Do what you want
fi
The command man test is your friend.
share
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Moment JS - check if a date is today or in the future
...ardless if time difference is less than 24 hours.
– zanderwar
May 12 '16 at 4:51
3
Not working fo...