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C251 User's Guide
C251 Introduction Compiling Programs 
Language Extensions 
Keywords Memory Areas Program Memory Internal Data Memory External Data Memory Near Memory Far Memory Huge Memory SFR Memory Memory Models Tiny Model XTiny Model Small Model XSmall Model Large Model Memory Types Implicit Memory Types bdata code data ebdata far huge idata near xdata Data Types Special Function Registers sfr sfr16 sbit Bit-Addressable Objects bit Standard C Types void char int enum float double Type Modifiers signed unsigned short long Type Qualifiers const volatile Storage Classes auto register extern static Absolute Variable Location Pointers Memory Type in Pointer Declarations Pointer Conversions Function Declarations Memory Models Register Banks Interrupt Functions Reentrant Functions Alien (PL/M-51) Function Real-Time Function Tasks Preprocessor Advanced Programming Error Messages Library Reference Appendixenum
The enum keyword defines a set of constants of type int. It is used as follows:
enum 〚tag〛 {name 〚= value〛, ...};
Where
| tag | is the name of the enum set. |
| name | is the name of an enum constant. |
| value | is the value assigned to the constant. If the value is missing, then it is assumed to be the value of the previous constant in the set +1. The default value for the first constant in the list is 0. |
Define an enum type in the program as follows:
enum tag name 〚= value〛;
Where
| tag | is the name of the enum set. |
| name | is the name of the variable. |
| value | is the value assigned to the variable. |
Refer to 2-Byte Scalars for information regarding the format of enum constants.
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