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Why does calling a method in my derived class call the base class method?
...does shadowing instead of overriding. Shadowing merely affects the compile-time semantics rather than the runtime semantics, hence the unintended output.
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How do you set, clear, and toggle a single bit?
...d::endl;
}
[Alpha:] > ./a.out
00010
The Boost version allows a runtime sized bitset compared with a standard library compile-time sized bitset.
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Hexadecimal To Decimal in Shell Script
...ons, based on your initial question. He definitely deserves votes for the time he spent giving you multiple correct answers.
One more that's not on his list:
[ghoti@pc ~]$ dc -e '16i BFCA3000 p'
3217698816
But if all you want to do is subtract, why bother changing the input to base 10?
[ghoti@...
How can you encode a string to Base64 in JavaScript?
... As an American, you probably won't notice a difference ... but the first time you use an accented character, your code will break.
– Dan Esparza
Nov 8 '11 at 16:23
74
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What is the difference between String.Empty and “” (empty string)?
...interchangable
string.Empty is a read-only field whereas "" is a compile time constant. Places where they behave differently are:
Default Parameter value in C# 4.0 or higher
void SomeMethod(int ID, string value = string.Empty)
// Error: Default parameter value for 'value' must be a compile-time...
Recursively add files by pattern
...The Windows port of zsh is based on a very old version and crashes all the time (for example when I enter ls).
– Michel Krämer
May 18 '10 at 8:09
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Regex to match string containing two names in any order
...
Try:
james.*jack
If you want both at the same time, then or them:
james.*jack|jack.*james
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Need to handle uncaught exception and send log file
...ld.VERSION_CODES.ICE_CREAM_SANDWICH_MR1) ?
"logcat -d -v time MyApp:v dalvikvm:v System.err:v *:s" :
"logcat -d -v time";
// get input stream
Process process = Runtime.getRuntime().exec(cmd);
reader = new InputStreamReader (process.getInputStream());
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[] and {} vs list() and dict(), which is better?
...ms of speed, it's no competition for empty lists/dicts:
>>> from timeit import timeit
>>> timeit("[]")
0.040084982867934334
>>> timeit("list()")
0.17704233359267718
>>> timeit("{}")
0.033620194745424214
>>> timeit("dict()")
0.1821558326547077
and for n...
Sorting 1 million 8-decimal-digit numbers with 1 MB of RAM
...t take 2 variables: COUNTER and VALUE.
First set all registers to 0;
Every time you receive an integer I, increment COUNTER and set VALUE to max(VALUE, I);
Then send an ICMP echo request packet with data set to I to the router. Erase I and repeat.
Every time you receive the returned ICMP packet, you...