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* Warning, struct/union 4 bytes (or 8) and passed by value cannot be directly accessed from COBOL

On 32-bit systems, C allows data items greater than four bytes to be passed by value but the effects at run time are implementor dependent and so the items cannot be directly accessed from COBOL. This is considered by C programmers to be bad programming practice and indicates that the C header file should be modified. On 64-bit systems, the limit is eight bytes rather than four.

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