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Changed by [EMAIL PROTECTED] http://bugzilla.ximian.com/show_bug.cgi?id=77235 --- shadow/77235 2006-01-12 18:10:44.000000000 -0500 +++ shadow/77235.tmp.17154 2006-01-12 18:10:44.000000000 -0500 @@ -0,0 +1,76 @@ +Bug#: 77235 +Product: Mono: Compilers +Version: 1.1 +OS: GNU/Linux [Other] +OS Details: +Status: NEW +Resolution: +Severity: +Priority: Minor +Component: C# +AssignedTo: [EMAIL PROTECTED] +ReportedBy: [EMAIL PROTECTED] +QAContact: [EMAIL PROTECTED] +TargetMilestone: --- +URL: +Cc: +Summary: gmcs makes wrong decision on execution control flow + +Description of Problem: +gmcs compiler makes wrong decision on execution control flow (and microsoft +csc too, see +http://lab.msdn.microsoft.com/productfeedback/viewfeedback.aspx?feedbackid=5629a9f3-c35c-4d45-9ad7-90961eae9da4 +). + +Sample function: +string Bug() +{ +bool flag = true; +if (flag) +return "ugly"; +if (!flag) +return "bug"; +} + +Steps to reproduce the problem: +Try to compile this: + +public class Program +{ + static int a = 10; + + static string MakeTest() + { + bool flag = a == 10; + if (flag) + return "ugly"; + if (!flag) + return "bug"; + } + + static void Main(string[] args) + { + string test = MakeTest(); + } +} + +Actual Results: +bug.cs(5,19): error CS0161: `Program.MakeTest()': not all code paths return +a value +bug.cs(16,9): warning CS0219: The variable `test' is assigned but its value +is never used +Compilation failed: 1 error(s), 1 warnings + +Expected Results: +bug.cs(16,9): warning CS0219: The variable `test' is assigned but its value +is never used +Compilation succeeded - 1 warning(s) + +How often does this happen? +Always + +Additional Information: +Please, don't say me that you will fix it after microsoft. I understand, +that this bug is rare and it applies to every integral variable, not just +boolean. But boolean case is 99% of such kind of bug. Boolean only fix +would be very satisfied and appreciated. Thank you. _______________________________________________ mono-bugs maillist - [email protected] http://lists.ximian.com/mailman/listinfo/mono-bugs
