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How to count the number of set bits in a 32-bit integer?
...iently deal with any usage pattern or values you throw at it.
References:
https://graphics.stanford.edu/~seander/bithacks.html
https://en.wikipedia.org/wiki/Hamming_weight
http://gurmeet.net/puzzles/fast-bit-counting-routines/
http://aggregate.ee.engr.uky.edu/MAGIC/#Population%20Count%20(Ones%20Cou...
Is std::vector so much slower than plain arrays?
...t std::vector is "implemented as an array," blah blah blah. Today I went down and tested it, and it seems to be not so:
2...
Regex: ignore case sensitivity
...by preceding them with a minus sign (?-i).
Description is from the page:
https://www.regular-expressions.info/modifiers.html
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How to generate an entity-relationship (ER) diagram using Oracle SQL Developer
... model. On selecting TNS to be the Connection Type, the Network Alias drop down did not show the expected entries in my tnsnames.ora file. To get around, I selected the Connection Type to be Basic, and entered the desired Hostname, Port and Service Name values from the tnsnames.ora file that works o...
Is it secure to store passwords as environment variables (rather than as plain text) in config files
...it doesn't really matter where it's stored, a diligent hacker can track it down.
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boost::flat_map and its performance compared to map and unordered_map
...eUploader: {
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“User interaction is not allowed” trying to sign an OSX app using codesign
...rom it now and hope it keeps working.
Essentially, it looks like it comes down to -d system not actually working. So a lot of answers to other questions around here should probably be updated to reflect that.
security -v list-keychains -s "$KEYCHAIN" "$HOME/Library/Keychains/login.keychain"
securi...
Passing arguments to “make run”
...ion for make. and var=arg as a variable assignment.
for more details see: https://www.gnu.org/software/make/manual/html_node/Goals.html#Goals
for the terminology see: https://www.gnu.org/software/make/manual/html_node/Rule-Introduction.html#Rule-Introduction
about the variable assignment method...
Is std::unique_ptr required to know the full definition of T?
...he implementation file seems less likely to be inadvertently removed later down the road by somebody who assumes the destuctor body was erased rather than deliberately left blank.
– Dennis Zickefoose
May 16 '11 at 2:04
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How to check if an object is nullable?
...e already boxed the value to an object variable.
Microsoft documentation: https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/nullable-types/how-to-identify-a-nullable-type
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