The REAL type causes a #define
statement to be generated in the header
file of the form ASN1V_<valueName>
where <valueName>
would be replaced with the name in the ASN.1 source file. By generating
#define
statements, the symbolic names can be included in the source
code making it easier to adjust the boundary values.
This mapping is defined as follows:
ASN.1 production:
<name> REAL ::= <value>
Generated code:
#define ASN1V_<name> <value>;
For example, the following declaration:
rvalue REAL ::= 5.5
will cause the following statement to be added to the generated header file:
#define ASN1V_rvalue 5.5
The reason the ASN1V_
prefix is added is to prevent collisions with
other declarations such as enumeration items with the same name.