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What does the plus sign do in '+new Date'
...to get the numeric value of that object using valueOf() like we get string from toString()
new Date().valueOf() == (+new Date) // true
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How to create a new database using SQLAlchemy?
...eries in a transaction. To get around this, get the underlying connection from the engine:
>>> conn = engine.connect()
But the connection will still be inside a transaction, so you have to end the open transaction with a commit:
>>> conn.execute("commit")
And you can then pr...
Is floating-point math consistent in C#? Can it be?
...mbers can also work well as a substitute for floating point, as is evident from the four basic arithmetic operations:
Addition and subtraction are trivial. They work the same way as integers. Just add or subtract!
To multiply two fixed point numbers, multiply the two numbers then shift right the d...
Beyond Stack Sampling: C++ Profilers
...ng data. To get good output I need configure it to load the debug symbols from my 3rd party and system libraries. Be sure to do the same, otherwise you'll see that CRT is taking 20% of your application's time when what's really going on is malloc is trashing the heap and eating up 15%.
...
Why is WinRT unmanaged? [closed]
...e runtime implementation detail. The collector for .NET is very different from the collector for Javascript for example. The native objects created in either must observe the very strict rules of the collector. Which in turn means that they would have had to create WinRT versions that are specifi...
techniques for obscuring sensitive strings in C++
...acter, so the whole string is never around. Of course, if you are using it from something like RSA encoding, then this is trickier.
4) Do an ad-hoc algorithm -- on top of all this, add a unique twist or two. Maybe just add 1 to everything you produce, or do any encryption twice, or add a sugar. Thi...
How to generate gcc debug symbol outside the build target?
...in main.debug
strip --only-keep-debug main.debug
Strip debug information from origin file:
objcopy --strip-debug main
or
strip --strip-debug --strip-unneeded main
debug by debuglink mode:
objcopy --add-gnu-debuglink main.debug main
gdb main
You can also use exec file and symbol file separ...
window.onload vs $(document).ready()
...bject doesn't have a ready method, the jQuery object does that is returned from the $(document) call. Please edit this answer if I'm right because this is very confusing.
– A. Sallai
Mar 6 '14 at 9:10
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Is C++14 adding new keywords to C++?
The C++ Standards Committee tends to shy away from adding new keywords to the language, yet with C++11 that was not the case. Some examples:
...
How do I check if a file exists in Java?
...e("C:/").exists() will return true but will not allow you to open and read from it as a file.
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