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Are there strongly-typed collections in Objective-C?
...r:
var str: String = arr[0]
var num: Int = arr[0] //Error 'String' is not convertible to 'Int'
Lightweight Generics are intended to be used with NSArray, NSDictionary and NSSet, but you can also add them to your own classes:
@interface GenericsTest<__covariant T> : NSObject
-(void)generic...
Scanner vs. BufferedReader
...ion of read() or readLine() could
cause bytes to be read from the file, converted into characters, and
then returned, which can be very inefficient. Efficiency is improved
appreciably if a Reader is warped in a BufferedReader.
BufferedReader is synchronized, so read operations on a Buf...
How can I divide two integers to get a double?
...
Convert one of them to a double first. This form works in many languages:
real_result = (int_numerator + 0.0) / int_denominator
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T-SQL stored procedure that accepts multiple Id values
...7, 20
SELECT d.[Name]
FROM Department d
where @list_of_params like ('%'+ CONVERT(VARCHAR(10),d.Id) +'%')
very simple.
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Implications of foldr vs. foldl (or foldl')
...ways to stop left folds: 1. code it with a right fold (see fodlWhile) ; 2. convert it into a left scan (scanl) and stop that with last . takeWhile p or similar. Uh, and 3. use mapAccumL. :)
– Will Ness
Jan 3 '16 at 10:07
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Read an Excel file directly from a R script
... into personally. Fields with numbers with comma's need to be stripped and converted to numeric in R. Fields with "-" need to be recoded to NA. Overall recommendation is to really look at your numbers in Excel and ensure that they are being translated correctly into R.
– Brando...
Getting the thread ID from a thread
...etCurrentProcess().Threads returns a ProcessThreadCollection, which is not convertible to Threads. I don't see an easy fix.
– mafu
Jan 25 '11 at 9:31
2
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Drawing Isometric game worlds
...highest base-X. This renders the tiles the way one would expect.
Code to convert screen (point) to tile (cell) and back:
typedef struct ASIntCell { // like CGPoint, but with int-s vice float-s
int x;
int y;
} ASIntCell;
// Cell-math helper here:
// http://gamedevelopment.tutsplus.c...
How does this milw0rm heap spraying exploit work?
... shellcodeExample.o
Now you have a binary that prints out hello world.
to convert the binary into shell code type in: objdump -D shellcode
you will get the output:
shellcode: file format elf64-x86-64
Disassembly of section .text:
0000000000400078 <.text>:
400078: eb 1a ...
namespaces for enum types - best practices
...nderstands those new values, but only the old values would be accepted (by converting them down) by the old code. They shouldn't accept any one from those new values as being of the wrong type (the extended one). Only the old values they understand are accepted as being of the correct (base) type (a...