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When to use reinterpret_cast?
...t* c = static_cast<int*>(b);
reinterpret_cast only guarantees that if you cast a pointer to a different type, and then reinterpret_cast it back to the original type, you get the original value. So in the following:
int* a = new int();
void* b = reinterpret_cast<void*>(a);
int* c = rei...
How do I provide JVM arguments to VisualVM?
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Should be able to modify the memory settings in %JDK_HOME%\lib\visualvm\etc\visualvm.conf
Xms and Xmx are in the default_options line.
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Add string in a certain position in Python
... = hash[:4] + '-' + hash[4:]
>>> print hash
3558-79ACB6
However if you like something like a function do as this:
def insert_dash(string, index):
return string[:index] + '-' + string[index:]
print insert_dash("355879ACB6", 5)
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Expanding a parent to the height of its children
...mendeth An overflow-value called "overlay" does not exist. What is working if the child divs are floated is declaring overflow:hidden.
– Christoph
Jul 11 '12 at 10:17
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Passing a list of kwargs?
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ah, I wasn't paying attention. Should be better now.
– David Z
Sep 30 '09 at 20:26
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Any way to write a Windows .bat file to kill processes? [closed]
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You can do this with 'taskkill'.
With the /IM parameter, you can specify image names.
Example:
taskkill /im somecorporateprocess.exe
You can also do this to 'force' kill:
Example:
taskkill /f /im somecorporateprocess.exe
Just add one line per process you want to kill, save it as a .ba...
Why should a function have only one exit-point? [closed]
...y a single exit point - you have a single path through the method and you know where to look for the exit. On the minus side if you use indentation to represent nesting, your code ends up massively indented to the right, and it becomes very difficult to follow all the nested scopes.
Another is that...
Google Play Services Library update and missing symbol @integer/google_play_services_version
...sion of Google Play Services ( v4.0, released on Halloween 2013 ), you are now supposed to add a new tag into the AndroidManifest.xml file.
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What are the options for storing hierarchical data in a relational database? [closed]
...ierarchy and use Nested Sets to query the hierarchy.
The problem up until now has been that the coversion method from an Adjacecy List to Nested Sets has been frightfully slow because most people use the extreme RBAR method known as a "Push Stack" to do the conversion and has been considered to be ...
How do I check if a file exists in Java?
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Using java.io.File:
File f = new File(filePathString);
if(f.exists() && !f.isDirectory()) {
// do something
}
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