qt4 - QTextStream used for console output -


hey, i'm facing annoying problem qtextstream used console output.

qtextstream cout(stdout, qiodevice::writeonly); cout.setrealnumberprecision(1); cout.setpadchar('.');  //  code generating values of f[i] [...]  (int = 10; >= 0; i--) {     if (f[i] < -0.04 || f[i] > 0.04 || 1)     {        cout.setrealnumbernotation(qtextstream::fixednotation);        cout.setfieldalignment(qtextstream::alignright);        cout.setfieldwidth(8);        cout << f[i];        cout.setfieldalignment(qtextstream::alignleft);        cout.setfieldwidth(3);        cout << "*x^";        cout.setfieldalignment(qtextstream::alignleft);        cout.setnumberflags(cout.numberflags() & ~qtextstream::forcesign);        cout << << endl;     } }

the results with: found polynomial is:

.....0.0*x^10. ......-0.0*x^9.. .......0.0*x^8.. ......-0.0*x^7.. .......0.0*x^6.. .......1.0*x^5.. .....-36.0*x^4.. .....397.0*x^3.. ...-1674.0*x^2.. ....2753.0*x^1.. ...-1440.0*x^0.. ..

i cannot rid of strange shift in first line, , don't know .. come from. think there might problem alignment flags, have no idea may is.

thanks help.

if guess, i'd endl being left aligned , padded 3 characters, 2 characters appearing after return show @ beginning of next line. none on first line , alone on last line. try setting field width 1 before outputting endl.


Comments

Post a Comment

Popular posts from this blog

asp.net - repeatedly call AddImageUrl(url) to assemble pdf document -

i'm using abcpdf , i'm curious if can recursively call addimageurl() function assemble pdf document compile multiple urls? something like: int pagecount = 0; int theid = thedoc.addimageurl("http://stackoverflow.com/search?q=abcpdf+footer+page+x+out+of+", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetochain(theid); } pagecount = thedoc.pagecount; console.writeline("1 document page count:" + pagecount); //flatten document (int = 1; <= pagecount; i++) { thedoc.pagenumber = i; thedoc.flatten(); } //now try again theid = thedoc.addimageurl("http://stackoverflow.com/questions/1980890/pdf-report-generation", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetoc
Read more

java - Android recognize cell phone with keyboard or not? -

in android app, want detect user's device if device has keyboard(like motorola milestone) , show corresponding user interface. guys know how that? ! regards justicepenny http://developer.android.com/reference/android/content/res/configuration.html public int keyboard the kind of keyboard attached device. 1 of: keyboard_nokeys, keyboard_qwerty, keyboard_12key. that's it!
Read more

iphone - How would you achieve a LED Scrolling effect? -

how achieve led scrolling effect example below? led sign - led ticker emulator iphone , ipad http://img.skitch.com/20101201-rsfh4p1bajb1wp94k466pdpiuj.preview.jpg sometimes remunerates comment in other posts :) have put code you, should implement font '8pin matrix' realistic feeling. uilabel *label; - (void)viewdidload { [super viewdidload]; label = [[uilabel alloc]initwithframe:cgrectmake(10, 50, 300, 20)]; label.font = [uifont fontwithname:@"courier-bold" size:16.0]; label.backgroundcolor = [uicolor blackcolor]; label.textcolor = [uicolor greencolor]; label.linebreakmode = uilinebreakmodecharacterwrap; // otherwise "…" label.text = @"this led text scrolled "; // blanks space between [self.view addsubview:label]; [nstimer scheduledtimerwithtimeinterval:0.12f target:self selector:@selector(scrolllabel) use
Read more