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What does `m_` variable prefix mean?
...;
private:
std::string name; // This would lead to a compilation error.
std::string m_name; // OK.
};
main.cpp:9:19: error: duplicate member 'name'
std::string name;
^
main.cpp:6:19: note: previous declaration is here
std::string name() const;
...
Abstract methods in Python [duplicate]
...uently.
class Base(object):
def go(self):
raise NotImplementedError("Please Implement this method")
class Specialized(Base):
def go(self):
print "Consider me implemented"
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Should you always favor xrange() over range()?
...cent call last):
File "<stdin>", line 1, in <module>
OverflowError: Python int too large to convert to C long
Python 3 does not have this problem:
Python 3.2.3 (default, Jul 14 2012, 01:01:48)
[GCC 4.7.1] on linux2
Type "help", "copyright", "credits" or "license" for more informati...
When to use an assertion and when to use an exception
...The comment about the hard drive is wrong. Assertions are for checking for errors in your code logic. Never, ever, use them to check something that you don't control. Remember, if an assertion fails it means that your code is wrong.
– Ian Goldby
Nov 14 '13 at 1...
How to recover MySQL database from .myd, .myi, .frm files
...AIR TABLE sometable USE_FRM;
Otherwise you will probably just get another error.
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What is the easiest way to duplicate an activerecord record?
...
When I do this, I get an unknown attribute error with one column because of a column that is there due to a has_many relationship. Is there any way around this?
– Ruben Martinez Jr.
Jul 5 '14 at 19:57
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How is location accuracy measured in Android?
...ation is within that radius of the measured point in meters. Assuming that errors are normally distributed (which, as the docs say, is not necessarily true), that means that this is one standard deviation. For example, if Location.getAccuracy returns 10, then there's a 68% chance the true location o...
Does python have an equivalent to Java Class.forName()?
...In [59]: raise import_class_from_string('google.appengine.runtime.apiproxy_errors.DeadlineExceededError')()
---------------------------------------------------------------------------
DeadlineExceededError Traceback (most recent call last)
<ipython-input-59-b4e59d809b2f> in...
How to create a windows service from java app
...d "stop(String[] argv)" would work, but "start()" and "stop()" would cause errors. If you can't modify those calls, consider making a bootstrapper class that can massage those calls to fit your needs.
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How to check if there's nothing to be committed in the current branch?
...t , if we use this if [ -z $(git status --porcelain) ]; it will get some error , [: ??: binary operator expected I find the manual and use this if [ -z $(git status --short) ]; this can work, thanks!
– 9nix00
Feb 28 '11 at 7:52
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