COBOL and C Data Types

Interoperating with isCOBOL : isCOBOL and C : Calling C Language Functions and Other External Routines : COBOL and C Data Types

As in other COBOL implementations, in order to successfully call C language functions from isCOBOL and exchange data, the C and COBOL data storage types must be matched.

For example:

In COBOL, an integer defined as	would be represented in C, as
77 MY-DATA-INT SIGNED-INT EXTERNAL	int my_data_int;