Data types passed using C pointers (by reference)
Table 1 identifies the data types that can be passed as parameters between C and PL/I applications with the use of explicit pointers, or by reference, under C. Conversely, reference parameters passed by PL/I to C are received as pointers to the equivalent data type.
| C | PL/I |
|---|---|
| signed short int | REAL FIXED BINARY(15,0) |
| signed int | REAL FIXED BINARY(31,0) |
| signed long int | REAL FIXED BINARY(31,0) |
| float | FLOAT BINARY(21) FLOAT DECIMAL(06)
FLOAT BINARY (21) is the preferred equivalent for float. |
| double | FLOAT BINARY(53) FLOAT DECIMAL(16)
FLOAT BINARY (53) is the preferred equivalent for double. |
| long double | FLOAT BINARY(109) FLOAT DECIMAL(33)
FLOAT BINARY (109) is the preferred equivalent for long double. |
| pointer to. . . | POINTER |
| decimal(n,p) | FIXED DECIMAL(n,p) |
| Note: Data
storage alignment must match.
|
|