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How to check if running in Cygwin, Mac or Linux?
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If I run a script under cygwin by executing "\cygwin64\bin\bash -c scriptname", this doesn't necessarily work. In this situation, the cygwin path doesn't get set up and uname -s ends up calling whatever uname is first in your current path, which on my system turns out to be t...
Unexpected results when working with very big integers on interpreted languages
... supports arbitrary precision. It will produce the correct answer on 32 or 64 bit platforms.
This can be seen by raising 2 to a power far greater than the bit width of the platform:
>>> 2**99
633825300114114700748351602688L
You can demonstrate (with Python) that the erroneous values yo...
How does this print “hello world”?
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The number 4946144450195624 fits 64 bits, its binary representation is:
10001100100100111110111111110111101100011000010101000
The program decodes a character for every 5-bits group, from right to left
00100|01100|10010|01111|10111|11111|01111|01100|011...
Convert RGB to RGBA over white
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FYI, posted final solution based on your answer in question
– Mark Kahn
Jul 12 '11 at 23:58
2
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ArrayList vs List in C#
...ou can store an only value of Type T (string or int or employee or object) based on the declaration. (Note or)
Boxing and Unboxing will not happen.
Type safe.
It is newer.
Example:
ArrayList arrayList = new ArrayList();
List<int> list = new List<int>();
arrayList.Add(1);
arrayList.Ad...
Is gettimeofday() guaranteed to be of microsecond resolution?
...eofday() is 10us. It can jump forward and backward and time, consequently, based on the processes running on your system. This effectively makes the answer to your question no.
You should look into clock_gettime(CLOCK_MONOTONIC) for timing intervals. It suffers from several less issues due to thing...
How to set or change the default Java (JDK) version on OS X?
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A small fish function based on /usr/libexec/java_home
function jhome
set JAVA_HOME (/usr/libexec/java_home $argv)
echo "JAVA_HOME:" $JAVA_HOME
echo "java -version:"
java -version
end
If you don't use fish, you can do something s...
What does the C++ standard state the size of int, long type to be?
...c C++ types.
I know that it depends on the architecture (16 bits, 32 bits, 64 bits) and the compiler.
24 Answers
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is vs typeof
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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