size

问题 Using 32 bit MASM assembly with the MASM version 11 SDK, I discovered an error during compiling. The error pointed to the line where I declared a variable with a double-word (dd) size. The message said the variable was too small for the string I tried to assign to it. When I defined my variable as a byte instead (db) the program was compiled with no error. This implied that declaring a variable with the db instruction could allow more storage than declaring a double-data size. Below is the

问题 I am beginner Android developer and I am in a struggle making my app look good on all screens, i made different layouts for hdpi,xhdpi,xxhdpi to solve that, since some seekbars and textviews were disappearing on smaller screens.. Is there a way to specify in android manifest that only people with hdpi screens and above can download my app from playstore? I looked on below stackoverflow, and have read android developer guides, but I can't find solution to make it work on hdpi and above. https:

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Sizeof an array in the C programming language? #include "stdafx.h" #include <string> #include <iostream> using namespace std; string a[] = {"some", "text"}; void test(string a[]) { int size_of_a = sizeof(a) /sizeof(a[0]); cout << size_of_a; } int _tmain(int argc, _TCHAR* argv[]) { test(a); //gives 0 int size_of_a = sizeof(a) /sizeof(a[0]); cout << size_of_a; //gives 2 return 0; } as u can see in the comment test

问题 I want to compress my image and upload to server. This compression should be depended on the image size. Or it would help if we have any API in iPhone to get image resolution so that based on this resolution, i can set the compression rate. Thanks Jithen 回答1: There is nothing in iOS SDK to give you image size in inches from given pixel, one option is to determine on which device your app is running and then calculate size in inches for you image object. 回答2: You can get the size in points by

问题 If I open my web site in a browser and pres Ctrl + several time everything gets bigged and the site looks better to me. Can I achieve the same effect by putting something in the HTML code (so that the users see everything bigger by default, without pressing Ctrl+ )? I want to make everything bigger (text and images). 回答1: If you want to achieve the same effect that the browser zoom, you can use the CSS zoom property (and the transform scale(x) property for Firefox) on the body : body { -moz

问题 I am using Ojb-c, and I want to know the memory size of an object, but I got this, NSObject *obj = [[[NSObject alloc] init] autorelease]; NSLog(@"malloc size of myObject: %zd", malloc_size(obj)); NSLog(@"size of myObject: %zd", sizeof(obj)); malloc size of myObject: 16 size of myObject: 4 I know the sizeof(obj) is 4, because the pointer size on ios 32 is 4 bytes, what is the difference? But more than this, @interface TestObj : NSObject @property (nonatomic, retain) NSArray *arr; @property

问题 I've tested getting the image size using perl with the following simple code while sitting in one directory: #!/usr/local/bin/perl use Image::Size; my $x; my $y; my $id; opendir my $dh, "." or die "$0: opendir: $!"; ($x, $y, $id) = imgsize("test_image.png"); print $x." , ".$y."\n"; This worked fine, it gave me the correct width and height of the image. Then I incorporated it into my larger code, where I'm looping through folders and files. So the bigger code is this: # I first get into a

问题 I need to get the size of a tree using: size(Tree,Size) What I have so far is wrong, please advise! size(empty, Size). size(tree(L, _, R), Size) :- size(L, Left_Size), size(R, Right_Size), Size is Left_Size + Right_Size + 1. Output should produce: ?- size(node(1,2),X). X = 2. ?- size(node(1,[2,3,4]),X). X = 2. ?- size(node(node(a,b),[2,3,4]),X). X = 3. 回答1: Prolog is a declarative language, you must state correctly your patterns: size(node(L,R), Size) :- ... % why you add 1 to left+right

问题 I am testing out a tool for modifying files and one fairly important ability during this is telling the file size, especially while the file is still open. $file = tempnam('/tmp', 'test_'); file_put_contents($file, 'hello world'); echo 'Initial Read: ' . file_get_contents($file).PHP_EOL; echo 'Initial Size: ' . filesize($file).PHP_EOL; $fp = fopen($file, 'a'); fwrite($fp, ' then bye'); echo 'Final Read: ' . file_get_contents($file).PHP_EOL; fclose($fp); echo 'Final Size: ' . filesize($file)

问题 How can I know the size (in KB) of a particular key in redis? I'm aware of info memory command, but it gives combined size of Redis instance, not for a single key. 回答1: You currently (v2.8.23 & v3.0.5) can't. The serializedlength from DEBUG OBJECT (as suggested by @Kumar) is not indicative of the value's true size in RAM - Redis employs multiple "tricks" to save on RAM on the one hand and on the other hand you also need to account for the data structure's overhead (and perhaps some of Redis'