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On 24/07/2008, at 6:49 AM, Lim Hock-Chai wrote:

I couldn't figure out why there are junk data being output to the stdout:

It's because there is no null-terminator on the parameter data you pass into the C program.

If you run CALL from the command line then string literals are automatically null-terminated but if you run CALL from within a program you have to ensure either:
1) a null-terminator is present
or
2) write you C program to handle character data without a null- terminator.


The ILE C/C++ Programmer's Guide explains this behaviour.

Regards,
Simon Coulter.
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