This snippet is about detecting whether the carry flag is set or cleared. I work on Mac OSX, so my snippet supports Mac only. First, we need a routine that does the job: func.s: global _read_carry_flag _read_carry_flag: mov al, 0 jnc end mov al, 1 end: ret (Try nasm2 -f macho64 func.s for compiling into … Read more
I have seen one of the weirdest things in javascript. The server side (spring): @RequestMapping(value = “/foo”, method = RequestMethod.GET) @ResponseBody public Long foo() { return 793548328091516928L; } I return a single long value and: $.get(‘/foo’).done(function(data){ console.log(data); }); It represents the long integer as “793548328091516900” replacing (rounding indeed) the last two digits with 0s. When … Read more
I have a list of numbers as below: 0, 16, 32, 48 … I need to output those numbers in hexadecimal as: 0000,0010,0020,0030,0040 … I have tried solution such as: printf(“%.4x”,a); // where a is an integer but the result that I got is: 0000, 0001, 0002, 0003, 0004 … I think I’m close there. … Read more
Does JSON treat these all the same? Or are they a mix of Integers and booleans? var data = { “zero” : 0, “one” : 1, “false” : 0, “true” : 1, “0” : false, “1” : true } Answer The values true and false are actual boolean values, the rest are integers. See http://json.org/ … Read more
I have a list of integers and I need to count how many of them are > 0. I’m currently doing it with a list comprehension that looks like this: sum([1 for x in frequencies if x > 0]) It seems like a decent comprehension but I don’t really like the “1”; it seems like … Read more
I’m trying to convert a number from an integer into an another integer which, if printed in hex, would look the same as the original integer. For example: Convert 20 to 32 (which is 0x20) Convert 54 to 84 (which is 0x54) Answer The easiest way is to use Integer.toHexString(int) AttributionSource : Link , Question … Read more
This question already has answers here: NumPy or Pandas: Keeping array type as integer while having a NaN value (9 answers) Closed 8 years ago. Is there a way to store NaN in a Numpy array of integers? I get: a=np.array([1],dtype=long) a[0]=np.nan Traceback (most recent call last): File “<stdin>”, line 1, in <module> ValueError: cannot … Read more
I was working with a variable that I had declared as an Integer and discovered that > is not a member of Integer. Here’s a simple example: scala> i warning: there were deprecation warnings; re-run with -deprecation for details res28: Integer = 3 scala> i > 3 <console>:6: error: value > is not a member … Read more
In Python, I see people creating dictionaries like this: d = dict( one = 1, two = 2, three = 3 ) What if my keys are integers? When I try this: d = dict (1 = 1, 2 = 2, 3 = 3 ) I get an error. Of course I could do this: … Read more
The built-in Math.Pow() function in .NET raises a double base to a double exponent and returns a double result. What’s the best way to do the same with integers? Added: It seems that one can just cast Math.Pow() result to (int), but will this always produce the correct number and no rounding errors? Answer A … Read more
