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Get nth character of a string in Swift programming language
...This isn't explicit at all and may be corrected in the future without type casting. This also doesn't work if you use shorthand for the array via [string].first. @Sulthan's solution works best to use the baked in index values. It's far more clear on what is happening here.
– Th...
How do I write data into CSV format as string (not file)?
I want to cast data like [1,2,'a','He said "what do you mean?"'] to a CSV-formatted string.
6 Answers
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Python integer division yields float
...=int ? What should I do, is there a new division operator or must I always cast?
5 Answers
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Is returning by rvalue reference more efficient?
...g by rvalue can be more efficient. std::move() is just used as an explicit cast to illustrate the point more clearly. It's not a code you would copy-paste into your project. It doesn't contradict top-voted answer, because there temporary object is created inside the function. Here returned object is...
What is the difference between char array and char pointer in C?
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static char __unnamed[] = "abc";
char *c = __unnamed;
Note the implicit cast from char[] to char *, which is always legal.
Then if you modify c[0], you also modify __unnamed, which is UB.
This is documented at 6.4.5 "String literals":
5 In translation phase 7, a byte or code of value zero i...
Why isn't vector a STL container?
...terface to some bit in memory and allows you to use standard operators and casts.
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What does the construct x = x || y mean?
...(null)
foo(undefined)
foo(0)
are not equivalent.
Double pipe (||) will cast the first argument to boolean and if resulting boolean is true - do the assignment otherwise it will assign the right part.
This matters if you check for unset parameter.
Let's say, we have a function setSalary that h...
Why are regular expressions so controversial? [closed]
...tive parser (developer dependent threshold). One of my favourite examples PHP's split($pattern,$string) vs explode($delimiter,$string) - thankfully the former is getting depreciated, but lots of code used the former when they only needed the power of the later. Aggreed, RegEx's provide an easy too...
What does enctype='multipart/form-data' mean?
...andling library
Most (such as Perl's CGI->param or the one exposed by PHP's $_POST superglobal) will take care of the differences for you. Don't bother trying to parse the raw input received by the server.
Sometimes you will find a library that can't handle both formats. Node.js's most popula...
“VT-x is not available” when i start my Virtual machine [closed]
....intel.com/… your processor supports VT-x. Try this: itropics.net/index.php/computers/windows/…
– Yax
Mar 30 '11 at 9:48
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