C# Language Specification

6.Conversions 129

6.1Implicit conversions 129

6.1.1Identity conversion 129

6.1.2Implicit numeric conversions 129

6.1.3Implicit enumeration conversions 130

6.1.4Implicit nullable conversions 130

6.1.5Null literal conversions 130

6.1.6Implicit reference conversions 130

6.1.7Boxing conversions 131

6.1.8Implicit dynamic conversions 132

6.1.9Implicit constant expression conversions 132

6.1.10Implicit conversions involving type parameters 132

6.1.11User-defined implicit conversions 133

6.1.12Anonymous function conversions and method group conversions 133

6.2Explicit conversions 133

6.2.1Explicit numeric conversions 133

6.2.2Explicit enumeration conversions 135

6.2.3Explicit nullable conversions 135

6.2.4Explicit reference conversions 136

6.2.5Unboxing conversions 137

6.2.6Explicit dynamic conversions 137

6.2.7Explicit conversions involving type parameters 138

6.2.8User-defined explicit conversions 138

6.3Standard conversions 139

6.3.1Standard implicit conversions 139

6.3.2Standard explicit conversions 139

6.4User-defined conversions 139

6.4.1Permitted user-defined conversions 139

6.4.2Lifted conversion operators 139

6.4.3Evaluation of user-defined conversions 139

6.4.4User-defined implicit conversions 140

6.4.5User-defined explicit conversions 141

6.5Anonymous function conversions 142

6.5.1Evaluation of anonymous function conversions to delegate types 143

6.5.2Evaluation of anonymous function conversions to expression tree types 144

6.5.3Implementation example 144

6.6Method group conversions 147