Error 1 Use Of Unassigned Local Variable Array
Contents |
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta use of unassigned local variable c# array Discuss the workings and policies of this site About Us Learn more
Error Cs0165 Use Of Unassigned Local Variable
about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack use of unassigned local variable unity Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping
Use Of Unassigned Local Variable String
each other. Join them; it only takes a minute: Sign up C# use of unassigned local variable…confused up vote 1 down vote favorite trying to iterate with this for loop and input int from user into array. I am getting an error and don't understand why.. error: Error 1 Use of unassigned local variable 'array' using System; use of unassigned local variable struct namespace Lab16 { class Program { static void Main(string[] args) { int[] array; int value; Console.Write("How big of an Array? "); int arraySize = int.Parse(Console.ReadLine()); for (int i = 0; i <= arraySize; i++) { Console.Write("First Value: "); value = int.Parse(Console.ReadLine()); --> array[i] = Convert.ToInt32(value); } } } } c# arrays for-loop share|improve this question edited Jul 3 '12 at 3:36 Nikhil Agrawal 24.9k1352110 asked Jul 3 '12 at 2:14 DanD 61128 2 You are not initializing the array. –Chris Dargis Jul 3 '12 at 2:17 add a comment| 4 Answers 4 active oldest votes up vote 7 down vote accepted Your array variable isn't initialized. Writing this should fix it: int[] array = new int[arraySize]; (Note, of course this needs to go after you've read arraySize from the console...) int value; Console.Write("How big of an Array? "); int arraySize = int.Parse(Console.ReadLine()); int[] array = new int[arraySize]; And one more problem ... your for loop as written is going to go out of bounds. Should be like this: for (
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow
Use Of Unassigned Local Variable Datetime
the company Business Learn more about hiring developers or posting ads with us Stack
Use Of Unassigned Local Variable List
Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community use of unassigned local variable c# for loop of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Why compile error “Use of unassigned local variable”? up vote 27 down vote favorite 5 My code http://stackoverflow.com/questions/11303629/c-sharp-use-of-unassigned-local-variable-confused is the following int tmpCnt; if (name == "Dude") tmpCnt++; Why is there an error Use of unassigned local variable tmpCnt? I know I didn't explicitly initialize it but due to Default Value Table a value type is initialized with 0 anyways. The reference also reminds me: Remember that using uninitialized variables in C# is not allowed. But why do I have to do it explicitly if it's already done by default? http://stackoverflow.com/questions/9233000/why-compile-error-use-of-unassigned-local-variable Wouldn't it gain performance if I wouldn't have to do it? Just wondering... c# .net compiler-construction share|improve this question asked Feb 10 '12 at 18:41 theknut 59521231 Can anyone help me with the headline? Couldn't find a fitting for this one :-S –theknut Feb 10 '12 at 18:44 I have a local struct, never initialized, compiles with no errors. Today I created a different struct, treated identically, got "uninitialized local variable error". All its members were set to a value before use, but I could not first set it to null, since it was 'just' a struct. The struct that compiled contained only ints, bools and strings. The one that gave the error also contained DateTimes. "MyStructType myStruct = new MyStructType();" killed the error. Not the first time I've been bitten by missing something a few levels down. –mickeyf Jun 2 at 19:14 add a comment| 9 Answers 9 active oldest votes up vote 55 down vote accepted Local variables aren't initialized. You have to manually initialize them. Members are initialized, for example: public class X { private int _tmpCnt; // This WILL initialize to zero ... } But local variables are not: public static void SomeMethod() { int tmpCnt; // This is not initialized and must be ass
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more http://stackoverflow.com/questions/256073/c-sharp-error-use-of-unassigned-local-variable about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up C# error: Use of unassigned local variable up vote 22 down vote favorite 1 I'm not sure why I'm getting this error, but shouldn't this code compile, since use of I'm already checking to see if queue is getting initialized? public static void Main(String[] args) { Byte maxSize; Queue queue; if(args.Length != 0) { if(Byte.TryParse(args[0], out maxSize)) queue = new Queue(){MaxSize = maxSize}; else Environment.Exit(0); } else { Environment.Exit(0); } for(Byte j = 0; j < queue.MaxSize; j++) queue.Insert(j); for(Byte j = 0; j < queue.MaxSize; j++) Console.WriteLine(queue.Remove()); } So if queue is not initialized, then the for loops aren't reachable right? Since the program already terminates use of unassigned with Environment.Exit(0)? Hope ya'll can give me some pointers :) Thanks. c# initialization share|improve this question edited Nov 2 '08 at 0:17 Blair Conrad 98.6k17106100 asked Nov 1 '08 at 20:33 jkidv 1,11131212 6 I can't give you any pointers, but I hope you can get a handle on this one. –wprl Nov 1 '08 at 20:40 add a comment| 5 Answers 5 active oldest votes up vote 65 down vote accepted The compiler doesn't know that the Environment.Exit() is going to terminate the program; it just sees you executing a static method on a class. Just initialize queue to null when you declare it. Queue queue = null; share|improve this answer edited Mar 9 '13 at 1:14 Zaid Masud 7,20634369 answered Nov 1 '08 at 20:35 tvanfosson 351k65570700 add a comment| up vote 9 down vote The compiler doesn't know that Environment.Exit() does not return. Why not just "return" from Main()? share|improve this answer answered Nov 1 '08 at 20:35 Brian 95.3k11188265 I prefer to use Environment.Exit with a non-zero error status in case the program is called from a script. That way the script can know whether the program was successful or not by checking the exit status. –tvanfosson Nov 1 '08 at 20:51 4 Change the return type of main to int and return the status. –Scott Langham Dec 5 '08 at