In general, the heap memory used by a Java object in Hotspot consists of: an object header, consisting of a few bytes of “housekeeping” information; memory for primitive fields, according to their size (int n->32 bits) memory for reference fields (4 bytes each) (Integer n ->32 bits) padding: potentially a few “wasted” unused bytes after … Read more
Try this (let’s use Math.Round with MidpointRounding.AwayFromZero in order to obtain “next even value” but scaled – 2 factor): double source = 1123.0; // 1124.0 double result = Math.Round(source / 2, MidpointRounding.AwayFromZero) * 2; Demo: double[] tests = new double[] { 1.0, 1123.1, 1123.0, 1122.9, 1122.1, 1122.0, 1121.5, 1121.0, }; string report = string.Join(Environment.NewLine, tests … Read more
We have got to love list comprehensions. [dict([a, int(x)] for a, x in b.items()) for b in list] (Remark: for Python 2-only code, you may use “iteritems” instead of “items”)
Will this help? Integer.parseInt(“00ff00”, 16) 16 means that you should interpret the string as 16-based (hexadecimal). By using 2 you can parse binary number, 8 stands for octal. 10 is default and parses decimal numbers. In your case Integer.parseInt(primary.getFullHex(), 16) won’t work due to 0x prefix prepended by getFullHex() – get rid of and you’ll … Read more
you need to convert to char first because converting to int adds those days to 1900-01-01 select CONVERT (datetime,convert(char(8),rnwl_efctv_dt )) here are some examples select CONVERT (datetime,5) 1900-01-06 00:00:00.000 select CONVERT (datetime,20100101) blows up, because you can’t add 20100101 days to 1900-01-01..you go above the limit convert to char first declare @i int select @i … Read more
Use fromIntegral. takeN :: Integer -> [a] -> [a] takeN n l = take (fromIntegral n) l Note that fromIntegral :: (Integral a, Num b) => a -> b, so sometimes you will need an extra type annotation (e.g. (fromIntegral n :: Int)), but usually the compiler can infer which type you want. In the … Read more
They are not compatible types, which you can see with a a simple example: int* iptr; long* lptr = iptr; // compiler error here So it mostly matters when dealing with pointers to these types. Similarly, there is the “strict aliasing rule” which makes this code undefined behavior: int i; long* lptr = (long*)&i; *lptr … Read more
Actually I agree with Andrew Hare’s answer, just pass a list with a single element. But if you really must accept a non-list, how about just turning it into a list in that case? def select_rows(to_select): if type(to_select) is not list: to_select = [ to_select ] for row in range(0, table.numRows()): if _table.item(row, 1).text() in … Read more
Just change to memset (arr, -1, sizeof(arr)); Note that for other values than 0 and -1 this would not work since memset sets the byte values for the block of memory that starts at the variable indicated by *ptr for the following num bytes. void * memset ( void * ptr, int value, size_t num … Read more