Supported data types passed by value
Table 1 identifies the data types that can be passed by value (without using a C++ pointer) between C++ and PL/I applications.
In order for a C++ routine to pass a parameter without using a pointer, the argument should be passed, and the PL/I routine should receive the parameter as the equivalent PL/I data type.
| C++ | PL/I |
|---|---|
| signed int | REAL FIXED BINARY(31,0) |
| signed long int | REAL FIXED BINARY(31,0) |
| double | FLOAT DECIMAL(16) |
| double | FLOAT BINARY(53) |
| long double | FLOAT DECIMAL(33) |
| long double | FLOAT BINARY(109) |
| Note: The preferred PL/I data
declarations for the C double and long double data types are FLOAT
BINARY(53) and FLOAT BINARY(109), respectively. Data storage alignment
must match.
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