大约有 7,900 项符合查询结果（耗时：0.0337秒） [XML]
“static const” vs “#define” vs “enum”
...ul as long as you don't need to use the name as a constant expression. The word "constant" in C means something that can be evaluated at compile time; const means read-only. const int r = rand(); is perfectly legal.
– Keith Thompson
Feb 26 '14 at 16:51
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How to make a HTML Page in A4 paper size page(s)?
...ssible to make a HTML page behave, for example, like a A4-sized page in MS Word?
15 Answers
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Safe (bounds-checked) array lookup in Swift, through optional bindings?
...line in where the fashion of Swift programming is going, which in Crusty's words¹ is: "Think protocols first"
• What do we want to do?
- Get an Element of an Array given an Index only when it's safe, and nil otherwise
• What should this functionality base it's implementation on?
- Array subs...
Why exactly is eval evil?
...r techniques, then I suppose there's nothing "evil" about it? In other words, the only problems with eval are the same with SQL queries and other techniques that use user input directly?
– Jay
Apr 3 '10 at 13:59
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Stash changes while keeping the changes in the working directory in Git
...f --keep-index I've seen. I didn't get quite the meaning by the way it was worded on the docs.
– 40detectives
Mar 17 at 18:33
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Checking for empty arrays: count vs empty
... with an empty array. Use isset() to test if a variable is set.
In other words, if the variable is not set, you will get a notice from PHP saying it's undefined. Therefore, before using count, it would be preferable to check the variable with isset. This is not necessary with empty.
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Finding local maxima/minima with Numpy in a 1D numpy array
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Another approach (more words, less code) that may help:
The locations of local maxima and minima are also the locations of the zero crossings of the first derivative. It is generally much easier to find zero crossings than it is to directly find ...
Does Python have “private” variables in classes?
...modifiers are intended in any way to be "secure" in the usual sense of the word.
– devios1
Jan 4 '17 at 18:43
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How to disable zoom on Ctrl+scroll in Visual Studio 2010?
...sed a dictionary definition to completely ignore the intended usage of the word. Great argument and point. Really, bravo to you for finding the world's most specious argument.
– Anthony
Jun 25 '19 at 3:58
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How to Parse Command Line Arguments in C++? [duplicate]
...le after a -f command line argument. You can also just detect if a single-word option has been passed in like -h for help.
#include <algorithm>
char* getCmdOption(char ** begin, char ** end, const std::string & option)
{
char ** itr = std::find(begin, end, option);
if (itr != en...