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When should I use malloc in C and when don't I?
...y, but of course you don't know the file's size in advance, since the user selects the file on the spot, at runtime. So basically you need malloc when you don't know the size of the data you're working with in advance. At least that's one of the main reasons for using malloc. In your example with a ...
Setting environment variables via launchd.conf no longer works in OS X Yosemite/El Capitan/macOS Sie
... If the computer is restarted and "Reopen windows when logging back in" is selected, the reopened windows may not see the variables (Perhaps they are opened before the agent is run). Also, if you log in via ssh, the variables will not be set (so you'll need to set them in ~/.bash_profile). Finally, ...
When to use , tag files, composite components and/or custom components?
...ent which represents a single java.util.Date property by 3 dependent <h:selectOneMenu> components, or a component which combines <p:fileUpload> and <p:imageCropper> into a single <my:uploadAndCropImage> referring a single custom com.example.Image entity as property.
Examples:...
What is the difference between customErrors and httpErrors?
... the Debugging Properties 2.) under "Error Pages / Edit Feature Settings", select "Detailed errors". 3.) disable "Show friendly HTTP error messages" in IE stackoverflow.com/questions/2640526/…
– Kiquenet
Oct 6 '15 at 19:38
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Is there ever a time where using a database 1:1 relationship makes sense?
...re is a larger set of data that needs to be collected, if and only if they select to have health coverage. I would keep the demographic data regarding health coverage in a different table to both give easier security partitioning and to avoid hauling that data around in queries unrelated to insuranc...
How do you specify the Java compiler version in a pom.xml file?
... Which way is "best"? This one is less verbose compared to the selected answer, but it seems sort of hidden. Even the Maven site documentation shows using the plugin.
– mkobit
Oct 15 '15 at 16:34
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application/x-www-form-urlencoded or multipart/form-data?
...will fail.
The key is to choose an encoding and a boundary such that your selected boundary characters cannot appear in the encoded output. One simple solution is to use base64 (do not use raw binary). In base64 3 arbitrary bytes are encoded into four 7-bit characters, where the output character se...
How to upload a file in Django? [closed]
...ss DocumentForm(forms.Form):
docfile = forms.FileField(
label='Select a file',
help_text='max. 42 megabytes'
)
4. View: myproject/myapp/views.py
A view where all the magic happens. Pay attention how request.FILES are handled. For me, it was really hard to spot the fact tha...
How do I replace NA values with zeros in an R dataframe?
... mutate(myCol1 = if_else(is.na(myCol1), 0, myCol1))
Note: This works per selected column, if we need to do this for all column, see @reidjax's answer using mutate_each.
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Advantage of creating a generic repository vs. specific repository for each object?
...se GetById(int id)? How would composite keys work? I wondered if a generic selection by ID was a worthwhile abstraction. If not, what else would generic repositories be forced to express akwardly? That was the line of reasoning behind abstracting the implementation, not the interface.
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