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printf() formatting for hex
...re's certainly a case to be made for using 16 instead of 12 in portable 64-bit code (but you'd use 8 for 32-bit code).
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Android adb not found
...
On Linux, Android SDK platform-tools package containing adb used to be 32bit. It worked fine on 32bit systems. But on 64bit systems you need to manually install the IA32 library.
For Debian based distributions try this:
sudo apt-get install libc6-i386 lib32stdc++6 lib32gcc1 lib32ncurses5
But s...
How do I check if a list is empty?
For example, if passed the following:
27 Answers
27
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How to compare 2 files fast using .NET?
...D);
fs2.Read(two, 0, BYTES_TO_READ);
if (BitConverter.ToInt64(one,0) != BitConverter.ToInt64(two,0))
return false;
}
}
return true;
}
In my testing, I was able to see this outperform a straightforward ReadByte()...
Convert an integer to a float number
... In your case it is numeric types:
uint8 the set of all unsigned 8-bit integers (0 to 255)
uint16 the set of all unsigned 16-bit integers (0 to 65535)
uint32 the set of all unsigned 32-bit integers (0 to 4294967295)
uint64 the set of all unsigned 64-bit integers (0 to 18446744...
How can I multiply and divide using only bit shifting and adding?
How can I multiply and divide using only bit shifting and adding?
14 Answers
14
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Shell command to sum integers, one per line?
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Bit of awk should do it?
awk '{s+=$1} END {print s}' mydatafile
Note: some versions of awk have some odd behaviours if you are going to be adding anything exceeding 2^31 (2147483647). See comments for more background. One...
How can I display an RTSP video stream in a web page?
...9921"
codebase="http://downloads.videolan.org/pub/videolan/vlc/latest/win32/axvlc.cab"
width="640" height="480" id="vlc" events="True">
<param name="Src" value="rtsp://cameraipaddress" />
<param name="ShowDisplay" value="True" />
<param name="AutoLoop" value="Fal...
C++11 std::threads vs posix threads
...en if C++11 seems available. For instance in native Android std::thread or Win64 it just does not work or has severe performance bottlenecks (as of 2012).
A good replacement is boost::thread - it is very similar to std::thread (actually it is from the same author) and works reliably, but, of course...
Truncating floats in Python
...piler encodes it using the IEEE floating-point format into the sequence of bits (assuming a 64-bit float)
0011111111010011001100110011001100110011001100110011001100110011
This is the closest value to 0.3 that can accurately be represented as an IEEE float. But if you write 0.29999999999999998 in ...