symbols

问题 I am encountering 'duplicate symbol' errors in Xcode 4.5.1 when I try to build a project after adding my own framework. I verified the framework files for duplicates and there are none. But when I add the framework to a project, it complains with these error. Please suggest.. duplicate symbol _NXArgc in: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk/usr/lib/crt1.3.1.o /Users/idcc/Test/MyFW/Products/MyTestFW.framework/MyTestFW duplicate

问题 This question already has answers here : What does map(&:name) mean in Ruby? (15 answers) Closed 5 years ago . I'm reviewing someone's ruby code and in it they've written something similar to: class Example attr_reader :val def initialize(val) @val = val end end def trigger puts self.val end anArray = [Example.new(10), Example.new(21)] anArray.each(&:trigger) The :trigger means the symbol is taken and the & transforms it into a proc ? If that's correct, is there any way of passing variables

问题 I'm trying to prevent g++ from inlining templated functions, which cause gdb to lack debugging information, like local variables or even current line numbers. Actually, I'm guessing this is something related to inlining template functions, because this is the only situation where I can't have access to anything in my callstack. I've pretty much tried everything I could in g++ options, such as: -DDEBUG -O0 -fno-inline -fno-implicit-inline-templates and even considered prefixing my functions

问题 I am looking for this character: Δ which I need for a legend item in matplotlib. Python 3.x features a str type that contains Unicode characters, but I couldn't find any valuable information about how to do it in Python 2.7. x = range(10) y = [5] * 10 z = [y[i] - x[i] for i in xrange(10)] plt.plot(x,z,label='Δ x,y') plt.legend() plt.show() UnicodeDecodeError: 'ascii' codec can't decode byte 0xce in position 0: ordinal not in range(128) 回答1: Although @berna1111's comment is correct, you don't

问题 I can't figure out why I'm getting the cannot find symbol errors for the num and triangle type variables. This is the class: public class Triangle { private int s1; private int s2; private int s3; public Triangle (int s1, int s2, int s3) { s1= num1; s2= num2; s3= num3; } public String toString() { return (s1 + " " + s2 + " " + s3); } public boolean is_equilateral(){ if(s1==s2 && s2==s3 && s3==s1) { return Triangle.is_equilateral; } else { return false; } } public boolean is_isosceles(){ if(

问题 My gdb bt callstack gives function name with function address. Then I did nm binary and generated the function name and address mapping. When I tried to match gdb address with nm output it did not match. The function address in (gdb) bt where too high (looks like physical address). gdb function address (e.g 0x00007fffe6fc150f ): #9 0x00007fffe6fc150f in read_alias_file (fname=<value optimized out>, fname_len=<value optimized out>) at localealias.c:224 #10 0x00007fffe6fc1a4e in _nl_expand

问题 Been searching around for a long time, and the only examples I can find for doing this are something like this: [Embed(source="Assets.swf", symbol="dog")] private static var _Dog:Class; public static function get Dog():MovieClip { return new _Dog(); } But this seems to be flex-only (I get the error "unable to resolve 'Assets.swf' for transcoding") How do you do this in plain AS3? 回答1: I'd personally use the CASALib util called SwfLoad. In order to do this, you need to make sure you export the

问题 I have a Simon game that I'm working on, and I've been debugging for a while before moving on to finish. Just this one error left so far; Compiler (NetBeans IDE rather) reporting error; specifically "Cannot find symbol MenuPanel ; Class: BorderPanel". I know it is not within this class, but I'm not entirely sure how where to point it to. Relevant code below: package simon; import java.util.*; import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.awt.Color.*; /** * Main

问题 I have a Xamarin application with a Label which is Bound like so: <Label Text="{Binding BackSpace}"/> and a property in my viewmodel like so: public string BackSpace { get { ResourceManager temp = new ResourceManager("MyProgram.ResourceStrings", typeof(MyClass).GetTypeInfo().Assembly); result = System.Text.RegularExpressions.Regex.Unescape(temp.GetString("Backspace")); } } now I have an element in my ResourceStrings called Backspace and I am trying to get the string associated with this key

问题 i defined a class TestoMessaggi and a subclass called Messaggio //esercizio 3.3 del libro import javax.swing.JOptionPane; public class TestoMessaggio { private String code; private String testo; public TestoMessaggio(String c, String t) { code = c; testo = t; } public static TestoMessaggio creaTestoMessaggio() { String co = JOptionPane.showInputDialog(null,"inserisci codice"); String te = JOptionPane.showInputDialog(null,"inserisci testo"); TestoMessaggio t1 = new TestoMessaggio(co,te);