CHAPTER 25
Preprocessor
C# includes a set of preprocessor directives that are mainly used for conditional compilation. Although the C# compiler does not have a separate preprocessor, as C and C++ compilers, the directives shown below are processed as if there was one. That is, they appear to be processed before the actual compilation takes place.
| Directive | Description |
|---|---|
| #if #elif #else #endif | If Else if Else End if |
| #define #undef | Symbol define Symbol undefine |
| #error #warning #line | Generate error Generate warning Set line number |
| #region #endregion | Mark section start Mark section end |
Preprocessor directive syntax
The preprocessor ...
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