/debug, /optimize

MSDN has articles about these two compiler switches. However, people have been always confused by the statements in this article. What does that exactly mean? Following are some experiment results for your references.

BTW, here is a great post cover more details around this topic.

Hope this helps,

Command	PDB?	DebuggableAttribute
Csc Program.cs	No	No
Csc Program.cs /debug	Yes	[assembly: Debuggable(DebuggableAttribute.DebuggingModes.DisableOptimizations | DebuggableAttribute.DebuggingModes.EnableEditAndContinue | DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints | DebuggableAttribute.DebuggingModes.Default)]
Csc Program.cs /debug+
Csc Program.cs /debug:full
Csc Program.cs /debug:pdbonly	Yes	[assembly: Debuggable(DebuggableAttribute.DebuggingModes.DisableOptimizations | DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints)]
Csc Program.cs /optimize	No	No
Csc Program.cs /optimize+
Csc Program.cs /debug /optimize	Yes	[assembly: Debuggable(DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints | DebuggableAttribute.DebuggingModes.Default)]
Csc Program.cs /debug:pdbonly /optimize	Yes	[assembly: Debuggable(DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints)]