c# - How could I convert a value that looks like a double into an unsigned long, but properly? -

-

i programming in c# , trying convert string containing value seems double, did first convert string double, typecast double unsigned long. problem unsigned long either few digits greater or few digits lower value suppose receiving. after typecast double unsigned long, convert hexadecimal string , pad it.

here example of doing:

string valuetoparse = "2.53327490880368e+15"; double nvalue1 = double.parse(valuetoparse); ulong nvalue2 = (ulong)nvalue1; string str = nvalue2.tostring("x16");

here results of this:

string str = "00090000070ec260";

this problem:

right seems if nothing wrong average programmer.
what i'm trying do value being returned real result looking 00090000070ec258 - not - 00090000070ec260 , have no clue may causing difference in values.
assumption can think of may causing value difference typecasting double unsigned long , within process of value being converted, precision of double messing things up.

so please if may know what's going wrong or has ideas may going wrong, please respond. appreciate can provided. thanks. :)

if plug 90000070ec260 programmer's calculator , convert decimal, result of 2533274908803680, corresponds original parsed value.

however, if plug 90000070ec258 in , convert decimal, 2533274908803672, not correspond original parsed value.


Comments

Post a Comment

Popular posts from this blog

Detect support for Shoutcast ICY MP3 without navigator.userAgent in Firefox? -

-
the current version of mozilla firefox 23.0.1, version not support play mp3 shoutcast streams tcp port different 80 (most common 8000 shoutcast 1.9.8). i use flash when mp3 support not available in html5 audio, way detect is: try{ var = document.createelement('audio'); r = !!(a.canplaytype && !!a.canplaytype("audio/mpeg; codecs=mp3").replace(/^no$/,'')) }catch(e){ r = false; } the support mp3 shoutcast streams in firefox added in version 24 . a.canplaytype("audio/mpeg; codecs=mp3") = in chrome , firefox, chrome support, firefox not support, due current code detect not work firefox. the current version of jquery support ie 6 1.10.2, version not has .browser i think "stylized" way testing features , not querying browsers / versions, notwithstanding here see hard not violate "principle". what "stylized" way of detect mp3 icy support without navigator.useragent in firefox? ther...
Read more

web - SVG not rendering properly in Firefox -

-
i have problem svg renderring in firefox. whilst works in safari, chrome or in ie, doesn't work in firefox. inspecting element seems layers there, background visible if it's z-index higher z-index of others. rendered in firefox: svg logo in firefox link original source file: svg file thanks help. ps: used sketch 3 export svg. if helps somehow. you're experiencing bug 995813 . i fixed bug time ago change still making way through release process example display correctly firefox 31 onwards released on 22 july 2014. in meantime if move fill="white" <mask> element child <use> element work around firefox bug.
Read more

java - JavaFX 2 slider labelFormatter not being used -

-
i have following code not label slider "foo50", etc... 1 expect setlabelformatter call, instead seems have no effect (the slider labelled 50, 100, etc , println's dont run). there missing? not implemented in default 2.2 skin? using oracle java 7 package javafxbugtest; import javafx.application.application; import javafx.scene.*; import javafx.scene.control.*; import javafx.stage.*; import javafx.util.stringconverter; public class javafxbugtest extends application { @override public void start(final stage primarystage) { slider cp = new slider(); cp.setlabelformatter(new stringconverter<double>() { @override public string tostring(double t) { system.out.println("nope?"); return "foo" + t.tostring(); } @override public double fromstring(string string) { system.out.println("he...
Read more